Report - London Borough of Hillingdon

To:
COUNCILLOR KEITH BURROWS
CABINET MEMBER FOR PLANNING,
TRANSPORTATION AND RCYCLING
Democratic Services
Location: 3E/05
Ext: 0692
DDI: 01895 250692
My Ref: NJ
c.c. All Members of Executive Scrutiny
Committee
c.c. Chairman of Residents’ & Environmental
Services Policy Overview Committee
c.c. Jean Palmer, Corporate Director
c.c. John Fern, PEECS
c.c. Conservative and Labour Group Offices
(inspection copy)
Date: 24 May 2011
Decision Request Form INDIVIDUAL CABINET MEMBER
WINTER SERVICE OPERATIONAL PLAN
Attached is a report requesting that a decision be made by you as an individual
Cabinet Member. I can confirm that the decision has been identified in the Forward
Plan and it is therefore in order for you to make a decision. You should take a
decision on or after Thursday 2 June 2011 in order to meet Constitutional
requirements about publication of decisions that are to be made.
Please indicate your decision on the duplicate memo supplied, and return it to me
when you have made your decision. I will then arrange for the formal notice of
decision to be published. You may wish to discuss the report with the Corporate
Director before it is made. If you do not wish to accept the officer’s recommendation
and the reasons for it, you are urged to contact the Corporate Director before making
this decision.
Please note that your decision may be subject to call-in and will not therefore be
implemented until 5 working days after it has been published.
NAV JOHAL
Democratic Services Officer
Title of Report: Winter Service Operational Plan
Decision made:
Reasons for your decision : (e.g. as stated in report)
Alternatives considered and rejected : (e.g. as stated in report)
Signed ………………………………………………………Date……………………..
Cabinet Member for Planning, Transportation and Recycling

Winter Service Operational Plan
Cabinet Member
Cabinet Portfolio
Officer Contact
Councillor Keith Burrows
Cabinet Member for Planning, Transportation & Recycling
John Fern
Planning, Environment, Education and Community Services
Papers with report Winter Service Operational Plan 2011/12.
HEADLINE INFORMATION
Purpose of report
To provide the Cabinet Member with the Public Highways Winter
Service Operational Plan for the coming winter 2011/12.
Contribution to our
plans and strategies
The Public Highways Winter Service Plan makes a significant
contribution to the council’s duty to maintain the highway and
assists with achieving a ‘safe borough’ and a ‘clean and attractive
borough’.
Financial Cost The operational budget for this winter (2011/12) is £298,800.
Relevant Policy
Overview Committee
Ward(s) affected
Residents’ and Environmental Services.
All
RECOMMENDATION
That the Cabinet Member approves the Public Highways Winter Services Operational
Plan for implementation in 2011/12.
INFORMATION
Reasons for recommendation
The Council has a statutory duty, so far as is reasonably practicable, to ensure that safe
passage along a highway is not endangered by snow or ice. In order to discharge this duty the
Council has in place a Public Highways Winter Maintenance Operational Plan, which details the
policies and procedures in place to manage the road network in adverse winter weather
conditions, as well as providing operational and technical service information. This will be the
fifth winter that the Plan has been used and but for minor alterations it has provided a sound
basis for the Council’s winter maintenance operations.
Alternative options considered / risk management
No alternative options considered.
Cabinet Member report – 24 May 2011 Page 1
PART – MEMBERS, PUBLIC AND PRESS

Comments of Policy Overview Committee(s)
None at this stage.
Supporting Information
1. A very brief non-technical resume of the policy and procedures is set out below.
2. The objective of the winter maintenance service provided by the Council is to maintain
communications and enable every day life to continue during adverse weather
conditions. In doing so it addresses the issues of safety, highway availability and
ensuring that delays to the travelling public are kept to a minimum on the treated
network. This policy is in line with the principles laid down in the code of good practice
‘Delivering Best Value in Highway maintenance’ published by the institution of Highways
and Transportation. The Operational Plan has also taken account of ‘Well-Maintained
Highways, Code of Practice for Highways Maintenance Management’, by the Roads
liaison Group and ‘Lessons from the Severe Weather February 2009’ also by the Roads
Liaison Group.
3. The winter maintenance season extends from 29 October to 01 April and is a 24/7
operation throughout that period. Weather forecasts are received every day, which
includes road surface temperature information and this information is used to help
determine the appropriate action.
4. The Council salts 26 routes, which approximates to 46% of the adopted highway
network, and amounts to in excess of 413 miles (667 km) of road. In extreme icy
conditions a number of additional roads are also salted. Details of the predetermined
routes and extreme icy routes are given in the Operational Plan.
5. The main factors used in drawing up the predetermined routes are to maintain:
a. Links to the national road network, industry, commercial and business centres.
b. Maintain public transport and access by emergency services.
c. Journeys to and from work and education.
6. There are three principal winter operations:
a. Pre-treatment, commonly known as ‘precautionary salting’ to prevent ice forming.
b. Post-treatment, commonly known as ‘post salting’ to melt ice and snow that has
already formed.
c. Snow clearing to remove significant accumulations of snow by the use of snow
ploughs, other heavy machinery and manual labour.
7. The adoption of the Highway Service Operational Plan is a key decision as it affects all
the residents of the borough. Formal adoption of the Plan will show that the Council has
acknowledged its responsibilities and duties to maintain the network and has a working,
evolving document in place to manage and implement its policy and procedures.
Financial Implications
The 2011/12 operational budget for the Winter Maintenance service is £298,800. The budget is
monitored as part of the standard monthly budget monitoring cycle, with any variations reported
through to Cabinet in the monthly revenue and capital monitoring report.
Cabinet Member report – 24 May 2011 Page 2
PART – MEMBERS, PUBLIC AND PRESS

EFFECT ON RESIDENTS, SERVICE USERS & COMMUNITIES
What will be the effect of the recommendation?
The implementation of the Public Highways Winter Service Operational Plan will continue to
positively impact on all the residents of the Borough through the maintenance of
communications and will enable every day life to continue during adverse weather conditions. It
addresses the issues of safety, highway availability and ensures that delays to the travelling
public are kept to a minimum on the treated network.
Consultation Carried Out or Required
None.
CORPORATE IMPLICATIONS
Corporate Finance
N/A
Legal
Highway authorities have a statutory duty to ensure, so far as is reasonably practicable, that the
highway is kept free from ice and snow.
The duty is set out in Section 41 (1A) of the Highways Act 1980 as amended by Section 111 of
the Railways and Transport Act 2003. The relevant part of Section 41 now reads:
“a) The authority who are for the time being the highway authority for a highway
maintainable at the public expense are under a duty, subject to subsections (2)
and (3) below, to maintain the highway.
b) (1) In particular, a highway authority are under a duty to ensure, so far as is
reasonably practicable, that safe passage along a highway is not endangered by
snow or ice.”
The inclusion of the words “so far as is reasonably practicable” mean the duty to keep the
highway free of ice and snow is not absolute. The National Code of Practice for Highway
Maintenance ‘Well-maintained Highways’ published July 2005 (as amended) states that that
due to the scale of the financial and other resources that are potentially involved in delivering a
winter service, and the difficulties in maintaining high levels of plant utilisation for specialist
equipment, it may not be practicable to provide the service on all parts of the network to ensure
running surfaces are kept free of ice or snow at all times, even on the treated parts of the
network.
The Code goes on to state that in these circumstances, in order to comply with the changes in
legislation, it will be necessary to undertake risk assessments to establish which routes should
be included in a programme of treatment during inclement weather.
The Code recommends that Authorities should formally approve and adopt a Winter Service
Policy and Winter Service Operational Plan, it recommends issues to be considered when
Cabinet Member report – 24 May 2011 Page 3
PART – MEMBERS, PUBLIC AND PRESS

drafting the documents and that all aspects of the Operational Plan should be reviewed annually
in consultation with users and key stakeholders.
Additional statutory duties upon the highway authority relevant to this matter are:
• Section 150 of the Highways Act 1980 which imposes a duty upon authorities to remove any
obstruction of the highway resulting from “accumulation of snow or from the falling down of
banks on the side of the highway, or from any other cause” and
• the Traffic Management Act 2004 which requires authorities to do all that is reasonably
practicable to manage the network effectively to keep traffic moving. In meeting the duty,
authorities are required to establish contingency plans for dealing promptly and effectively
with unplanned events, such as unforeseen weather conditions, as far as is reasonably
practicable.
In addition to the statutory duties and powers, authorities have a general duty of care to users
and the community to maintain the highway in a condition fit for its purpose.
BACKGROUND PAPERS
Public Highways Winter Service Operational Service Plan 2011/12.
Cabinet Member report – 24 May 2011 Page 4
PART – MEMBERS, PUBLIC AND PRESS

WINTER SERVICE OPERATIONAL PLAN
FOR PUBLIC HIGHWAYS WITHIN THE
LONDON BOROUGH OF HILLINGDON

2011/2012
(28 th Oct 2011 to 30th March 2012)
VOLUME 1 – Policies and Service Arrangements.
WINTER SERVICE OPERATIONAL PLAN
0. Summary
1. Introduction
1.1 Winter Service
1.2 Objectives
1.3 Weather Forecasts
1.4 Winter Service Operations for the 2011/12 Season
1.5 What & When Do We Grit
1.6 Salt Stocks
1.7 FAQs
2. Summary of Revisions
2.1. Changes from 2010/2011.
3. Statement of Policies and Responsibilities
3.1. Policies and objectives.
3.2. Client and Highways Responsive Maintenance Team risks and responsibilities.
3.3. Decision making process and responsibilities.
3.4. Salt Treatments
3.5 Service delivery from the Highways Responsive Maintenance Section, (HRMS).
3.6. Liaison arrangements with other authorities.
4. Quality
4.1 Document control procedures.
4.2 Circulation of documents.
4.3 Information recording and analysis.
4.4 Arrangements for performance monitoring, audit, and updating.
5. Route Planning for Carriageways, Footways and Cycle Routes
5.1. Carriageway routes for pre-treatment.
5.2. Carriageway routes for post-treatment.
5.3. Ad hoc post-treatment.
5.4. Other post-treatment operations.
5.5. Routes for footway treatment.
5.6. Routes for cycleway/footpath and bridge treatment.
5.7. Response and treatment times for carriageway and footway treatments.
5.8. Standard Labour Force Working/Gritting Cyclic Schedule
5.9 Location and maintenance of salt bins and salt stores.
5.10 Resilience Network.
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6. Weather Prediction and Information
6.1. Forecasting, inspections and other decision support information
6.2. Information to be provided
6.3. Timing and circulation of information
6.4. Reporting procedure
7. Organisational Arrangements and Personnel
7.1 Organisational chart and employee responsibilities.
7.2 Employee duty schedules, Rota and standby arrangements.
7.3 Plant and vehicle manning arrangements.
7.4 Training and development arrangements.
7.5 Health and safety procedures.
8 Plant, Vehicles and Equipment
8.1 Fleet inventory including license requirements and capacity.
8.2 Location of plant, vehicles and other equipment.
8.3 Garaging, servicing and maintenance arrangements.
8.4 Calibration procedures.
8.5 Fuel stocks and locations.
9 Salt and De–Icing Materials
9.1 Location and capacity of stocks for salt and other materials.
9.2 Supply and testing arrangements.
9.3 Delivery arrangements.
9.4 Treatment requirements including spread rates.
9.5 Contacts and purchasing arrangements for supplies.
10 Treatment Methods
10.1 Precautionary Salting
10.2 Snow Clearance
11 Operational Communications
11.1 Technical systems information.
11.2 Reporting arrangements and protocols.
12 Information and Publicity
12.1 Local press and broadcast contact information.
12.2 Responsibilities and guidance for providing information.
Winter Service Operational Plan Vol 1 3 of 29

Volume 2: - Appendices and Annexes
Appendices
Annex
1 Northern Area
A Salting Routes and Winter Maintenance Service.
B Primary and Secondary Footway Treatment.
C Salt Bin Locations.
D Ice Sign Locations.
2 Southern Area
A Salting Routes and Winter Maintenance Service.
B Primary and Secondary Footway Treatment.
C Salt Bin Locations.
D Ice Sign Locations.
3 Weather Forecasting and Decision Making
Procedure.
4 Climatic Domains Map
5 ‘Daily Decision’ – Standard Proforma and Letters.
6
Winter Service Daily Operational & Defect Report
7
Highway ‘Out of Hours’ Duty Engineer Rota.
8 Adjoining Highway Authorities and Contacts.
9 Weather Terminology.
10 Self Care - Guidelines For Highway Users During
Winter.
11 Salt Bins - Guidelines For Their Use.
12 Changes in Winter Service Operational Plan.
Winter Service Operational Plan Vol 1 4 of 29

0. SUMMARY
The Winter Service Operational Plan sets out the objectives for the London Borough of
Hillingdon’s winter service. The Plan details the organisational procedures, the winter weather
forecasts and the decision-making process (i.e. “when we grit”). It explains who is responsible
for the service delivery and sets out the required documentation and information recording
measures for performance and auditing procedures. The list of gritting routes and the process
of gritting treatments for those routes are provided together with the service delivery times. The
plant and equipment required for delivering the service, along with the support to maintain the
service are explained. The arrangements for purchasing, supply and storage of the salt and deicing
materials is provided. Operational communications and technical systems information are
detailed and information given regarding publicity and national contacts.
Winter Service Operational Plan Vol 1 5 of 29

1. INTRODUCTION
1.1 Winter Service
A winter service not only deals with exceptional winter weather events but also with regular,
frequent and reasonably predictable occurrences like low temperatures, ice and snow.
Responsibility for the delivery of Winter Service rests with Hillingdon council as highway
authority for its borough roads, and is a year-round process linked with Hillingdon’s wider
resilience planning.
1.2 Objectives
The objective of the winter service provided by the Hillingdon Council, as highway authority, is
to maintain communications and enable every day life to continue during adverse weather
conditions. In doing so it addresses the issues of safety, highway availability and ensures that
delays to the travelling public are kept to a minimum on the treated network.
The Councils aim is to provide an effective and efficient winter service to allow:
• The safe passage of vehicles and pedestrians on the network of gritting routes.
• To minimise and control delays due to winter weather.
• To carry out operations safely.
The aim of the Winter Service Operational Plan is to set out how the winter service is to be
provided by the London Borough of Hillingdon
1.3 Weather Forecasts
Weather forecasts are provided on an area basis by the Met Office as our forecast provider.
Separate forecasts are provided for each of eight areas (or “domains”) across London, so
gritting operations can be implemented according to the forecast in that particular domain. Each
domain covers areas of similar climatic characteristics; Hillingdon is covered by two domains
(Nos 4 & 7 - see Appendix 4) and the boundary between them runs approximately along the
A40.
Weather forecasts will be received several times a day, and, in extreme weather officers speak
directly to weather forecasters to get the latest information. Forecasts include road surface
temperature information which is used to help determine the appropriate action.
1.4 Winter Service Operations for the 2011/12 Season
For 2011/12 the winter service season extends from 28 October to 30 March and is a 24/7
operation throughout that period.
There are three principal winter operations:
• Pre-treatment, commonly known as ‘precautionary salting’ to prevent ice forming.
• Post-treatment, commonly known as ‘post salting’ to melt ice and snow that has already
formed.
• Snow clearing to remove significant accumulations of snow by the use of snow ploughs
other heavy machinery and manual labour.
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1.5 What & When Do We Grit
1.5.1 Pre - Treatment
In common with many authorities the borough does not pre-treat all of its road network. The aim
of the service is to salt a network such that road users have a relatively short distance to travel
to get to a salted route. The Borough salts 8 pre-determined routes, which in total approximate
to 190 miles (307 km), or 46% of the adopted highway network which totals 413 miles (667 km)
of road.
The main criterion used in drawing up the predetermined routes was to maintain:
• Links to the national road network, industry, commercial and business centres.
• Maintain public transport and access by emergency services.
• Journeys to and from work.
Depending on the forecasted severity of the weather, precautionary salting will take place over
differing extents of the road network: When the road surface temperatures are expected to fall
below 0 o C and:
• Roads are expected to remain generally dry, then “Blackspots” are treated. “Blackspots”
are hills, junctions and known areas where it is known that frost or ice is likely to form locally
(see Appendices 1A and 2A for location lists)
• Icy frost is expected to form, then Priority Routes are treated - routes of primary
importance which tend to be “A“ roads and “B“ roads (see Appendices 1A and 2A for
location lists).
• Icy patches or widespread ice is expected to form, or snow is expected, then Priority and
Secondary routes are treated. They include all roads which fall under the criterion used to
draw up the predetermined routes (see Appendices 1A and 2A for location lists)
1.5.2 Post Treatment
Post salting will only be considered on minor roads not included in the pre-determined routes in
response to a specific report that a particular road is in an icy condition and then only after it has
been inspected to confirm that treatment is necessary.
Minor roads will not be treated with salt until after the pre-determined routes have been
sufficiently treated to ensure that they remain open to traffic at all times. These roads will then
be treated on a hierarchical basis of importance and in response to specific requests from the
Police, public etc.
No footways, pedestrian precincts or cycle ways are specifically included in pre-determined
routes for precautionary salting. Nevertheless, there will be a certain amount of over spill of salt
onto footways and cycle ways when precautionary salting is being carried out on adjacent
carriageways.
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Footways will only be treated once snow has settled or during periods of prolonged freezing
conditions on a priority basis at locations including (See Annex B to Appendices 1 & 2):
• Town Centres
• Hospitals
• Old Peoples Homes
• Day Centres
• Schools (during term times only)
• Footbridges
• Bus Stops
Secondary footway treatment will be carried out once Priority footways have been treated (See
Annex B to Appendices 1 & 2). If any reports of icy footways are received for locations not
included on the Priority or Secondary listings, the footway will be inspected to assess whether it
should be treated or not.
1.6 Salt Stocks
Over the last two decades, winters across England have been relatively mild. However,
February 2009 saw a prolonged period of cold weather and snowfall that resulted, across the
country, in significant disruption to travel to a range of public services, and to business. Many
highway authorities would have run out of salt for treating highways had milder weather not
arrived.
The February snow was only one period during a winter which was the most severe for at least
18 years. Freezing conditions and snowfall began in October and continued across the country
during much of December, January and February. Particular issues for highways were the
significantly larger than expected volumes of salt needed from earlier in the winter through to
February to prevent roads and footways freezing and help clear snow.
Focus fell upon the need to ensure salt did not run out by:
• Carrying a higher level of salt stock at the beginning and throughout the winter season (if
suppliers can satisfy the increased demand for salt)
• minimising the area of highway salted, or
• by minimising the amount of salt put down (i.e. minimising the spread rate)
This has lead to highway authorities across the country defining their Resilience Networks, a
“fall back” minimum network of essential roads to be salted when salt stocks are low and resupply
is uncertain. Should it be necessary to reduce salt usage in the face of a national salt
shortage like it was in 2009/10, we have developed Hillingdon’s Resilience network to prepare
for this eventuality and keep the borough moving. We want to be as prepared as possible, and
this network is designed to make best possible use of our stockpiled supplies in extreme
situations.
Hillingdon’s Resilience Network was put into operation in November/December 2010 when the
whole country experienced the coldest winter on record. The Winter Service Plan was tested to
the full and ensured that access to the boroughs network of roads was maintained.
.
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1.7 Frequently Asked Questions
Here are answers to a number of frequently asked questions about how Hillingdon responds to
winter weather:
• When does salting take place?
• Which roads are salted?
• How does spreading salt help?
• Can I clear the snow outside my house?
• How well did the council cope with last winter 2010/11?
• How has the council learned the lessons of last year’s winter weather?
• Last year’s severe winter weather produced lots of potholes in the roads – what did the
Council do about them?
• Does the Council have enough salt for this winter?
• How do I get my road added to the salting routes?
When does salting take place?
In Hillingdon we define the winter period as starting at the end of October and finishing at the
end of March. Hillingdon has a relatively mild winter climate when compared to other parts of
Britain. This means temperatures often hover around the freezing point and these marginal
conditions can make things difficult when making the decision whether or not to salt.
We work very closely with weather forecasters to ensure that the weather is constantly
monitored and that we take appropriate action.
We try to complete salting outside peak traffic periods and before freezing conditions occur.
This becomes particularly challenging when rain, sleet or hail is forecast which can wash salt off
the roads.
Which roads are salted?
We carry out salting in a priority order in accordance with importance of the road. A map of the
roads salted is available on the Councils website at
http://www.hillingdon.gov.uk/index.jsp?articleid=16915 .
The aim of the service is to salt a network such that road users have a relatively short distance
to travel to get to a salted route. The Borough salts 8 pre-determined routes, which adds up to
approximately 190 miles (307 km), or 46% of the adopted highway network which totals 413
miles (667 km) of road.
How does spreading salt help?
Salt is the best material we have available to treat snow and ice, but it isn’t perfect. How it
helps is by turning ice into salt water, which has a lower freezing point, and the melted water
then drains away. Roads with more traffic clear quicker, even when they have had exactly the
same treatment; tyres grind the salt thus helping the process
However, if temperatures drop to minus six or below as happened during the 2010/11 winter the
salt water itself freezes. When that happens, grit can be added to the salt to help break up the
snow through the action of tyres on the snow.
At the peak of last year’s wintry weather, Hillingdon Council were gritting four or five times a
night, often while residents were asleep. This was giving us plenty of salt on the roads and
helping keep the predetermined routes free of snow and ice and the traffic moving.
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Can I clear the snow outside my house?
The Department for Transport has issued guidance around the legal issues for residents who
want to clear snow and ice from outside their properties. In response to concerns from the
public about being sued, the guidelines state:
There is no law stopping you from clearing snow and ice on the pavement outside your
property, pathways to your property or public spaces. If an accident did happen, it's highly
unlikely that you would be sued as long as you are careful and use common sense to make
sure that you don't make the pavement or pathway clearly more dangerous than before. People
using areas affected by snow and ice also have responsibility to be careful themselves."
Official Department for Transport tips and advice on clearing snow and ice
“The Snow Code“:
“Prevent slips
Pay extra attention to clear snow and ice from steps and steep pathways - you might need to
use more salt on these areas. If you clear snow and ice yourself, be careful - don’t make the
pathways more dangerous by causing them to refreeze. But don’t be put off clearing paths
because you’re afraid someone will get injured. Remember, people walking on snow and ice
have responsibility to be careful themselves. Follow the advice below to make sure you clear
the pathway safely and effectively.
Clear the snow or ice early in the day
It’s easier to move fresh, loose snow rather than hard snow that has packed together from
people walking on it. So if possible, start removing the snow and ice in the morning. If you
remove the top layer of snow in the morning, any sunshine during the day will help melt any ice
beneath. You can then cover the path with salt before nightfall to stop it refreezing overnight.
Use salt or sand - not water
If you use water to melt the snow, it may refreeze and turn to black ice. Black ice increases the
risk of injuries as it is invisible and very slippery. You can prevent black ice by spreading some
salt on the area you have cleared. You can use ordinary table or dishwasher salt - a tablespoon
for each square metre you clear should work. Don’t use the salt found in salting bins - this will
be needed to keep the roads clear. Be careful not to spread salt on plants or grass as it may
cause them damage. If you don’t have enough salt, you can also use sand or ash. These won’t
stop the path icing over as well as salt, but will provide good grip under foot.
Take care where you move the snow
When you’re shovelling snow, take care where you put it so it doesn’t block people’s paths or
drains. Make sure you make a path down the middle of the area to be cleared first, so you have
a clear surface to walk on. Then shovel the snow from the centre of the path to the sides.
Offer to clear your neighbours’ paths
If your neighbour will have difficulty getting in and out of their home, offer to clear snow and ice
around their property as well. Check that any elderly or disabled neighbours are alright in the
cold weather. If you’re worried about them, contact your local council.”
To find more information about this, and to see the full version of this advice from the
Department for Transport website http://www.direct.gov.uk/en/Nl1/Newsroom/DG_191868
Winter Service Operational Plan Vol 1 10 of 29

How well did the borough council cope with last winter?
Hillingdon's official winter service period started on 29 October 2010 and after a very hard
winter which was the coldest on record ended on 1 April 2011. Over the winter there were:
52 nights when road temperatures went below zero, with at least one salting run being carried
out on each occasion. For days, when the borough was under snow, many salting runs took
place in the middle of the night. The total cost for salting and clearing of the borough’s roads
and pavements during the period was £359,795.
What did Hillingdon Council do about the potholes in the roads caused by the severe
10/11 winter weather?
Last winter, the coldest weather conditions on record took a major toll on the country’s roads,
pavements and cycleways. In Hillingdon, we have conducted a massive £2.4 m programme of
permanent pothole repairs in the spring to mend the roads as quickly as possible.
Damage to the roads during wintry weather is caused by rain water and thawing snow seeping
into small cracks in the road. As temperatures dip, the water freezes and expands, enlarging the
cracks. This causes cracks and potholes to appear, overnight in some cases, even in roads that
otherwise appear sound. Once the winter season is over, a full assessment of the road
network’s condition is carried out, and our inspection and repair works are coordinated in order
to return the highway to a safe condition as quickly as possible.
Permanent repairs on main roads are then coordinated into larger programmes of repair work,
which can take several months to complete.
Does the Council have enough salt for this winter?
Yes, we have sufficient supplies for normal winter conditions. However, if we do experience
exceptional winter conditions, we may again be asked by the Department for Transport to
reduce our salt usage and take such a decision in conjunction with other councils across
London.
How do I get my road added to the salting routes?
The list has been reviewed since last year to maximise the efficiency of our salting operations
and so the situation may have changed. A significant amount of work takes place each year to
review the list taking into account our criteria. The list is approved each year by the Cabinet
Member for Planning Transportation and Recycling.
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2. SUMMARY OF REVISIONS
Changes From 2010/2011
Each year the Winter Service Operational Plan is reviewed and updated accordingly to take
account of changes that are needed to ensure that the Winter Service continues to operate in
an efficient way. Since last year the following changes have been made to the Plan.
• Total Plan: Volume 1 & Volume 2, Revised and Updated, April 2011.
3.0 STATEMENT OF POLICIES AND RESPONSIBILITIES
3.1 Policies And Objectives
There are two pieces of legislation that relate to the provision of a Winter Service in England
and Wales :
1. Section 41 (1 A) of the Highways Act 1980, which was modified on 31st October 2003, by
Section 111 of the Railways and Transport Act 2003. The first part of Section 41 now reads:
"a) The authority who are for the time being the highway authority for a highway maintainable at
the public expense are under a duty, subject to subsections (2) and (3) below, to maintain the
highway.
b) (1) In particular, a highway authority are under a duty to ensure, so far as is reasonably
practicable, that safe passage along a highway is not endangered by snow or ice."
This is not an absolute duty, given the qualification of "reasonable practicability" but it does
effectively overturn previous legal precedence, although not retrospectively.
2. Section 150 of the Highways Act 1980 still imposes a duty upon authorities to remove any
obstruction of the highway resulting from "accumulation of snow or from the falling down of
banks on the side of the highway, or from any other cause ".
Also, the Traffic Management Act 2004 placed a network management duty on all local traffic
authorities in England . It requires authorities to do all that is reasonably practicable to manage
the network effectively to keep traffic moving. In meeting the duty, authorities should establish
contingency plans for dealing promptly and effectively with unplanned events, such as
unforeseen weather conditions, as far as is reasonably practicable .
The plan must also comply with the general duty imposed by Section 41 of the Highways Act
1980: to maintain those highways maintainable at public expense in a safe condition.
The London Borough of Hillingdon therefore undertakes to provide a winter service which, as far
as reasonably practical, will permit safe movement of traffic and minimise delays and accidents
directly attributable to adverse weather conditions.
Winter Service Operational Plan Vol 1 12 of 29

The strategy adopted for the London Borough of Hillingdon has been developed in
accordance with the recommendations set within:
• Well Maintained Highways - Code of Practice for Highway Maintenance Management,
published in July 2005 and:
• The guidelines detailed within the design and practice guide for highway winter
maintenance published by ICE (Institution of Civil Engineers) in 2000.
• The UKRLG Report 2009 and its recommendations. The Winter Resilience Interim
Review.
The Highways Responsive Maintenance Team (HRMT) coordinates and ensures the
provision of winter maintenance services. This generally involves spreading rock salt onto the
surface of roads and footways by the use of purpose-built vehicles and hand operated
machines.
3.2 Responsibilities
The winter service is managed by the Street Environment Team, which is part of the Planning,
Environment and Education Community Services Directorate. The service is delivered by the
Winter Service Team (WST), who consist of Street Environment staff, Waste Management Staff
and Fleet Management Staff
3.2.1 The Street Environment team’s responsibilities:
Before the Winter Season
1. Plan a service to deal with an average winter but having the capability to be extended to
handle more severe winters.
2. Update the Winter Service Operational Plan each year following a review of all aspects.
3. Maintain a list of pre-treatment salting routes for carriageways, footways, and cycleways for
different winter weather conditions.
4. Maintain a list of routes for post treatment during prolonged extreme or severe weather
conditions ( The “Resilience Network”)
5. Arrange for adequate weather forecasts during the winter period.
6. Maintain a list of salt bins and their location. Maintain the level of salt within the salt bins.
7. Procure and manage the stock of salt.
8. Ensuring that all operatives are appropriately trained in winter service operations.
9. Providing the Council with communication channels to enable immediate contact between
the Winter Service Call Out Officer, WST and the Council’s emergency control room, and
WST drivers, workshop operatives, shovel driver and fitter.
10. Establishing a list of contractors with suitable plant for snow clearing purposes and hiring in
such plant when necessary.
11. Identify within the council and enlist skilled mechanical salting vehicle drivers, weighbridge
operators, shovel drivers, supervisors, etc. adequate to manage and complete the winter
service operations to the specification within the response times.
12. Ensure temporary ice signs are located at the appropriate locations when conditions apply.
During the Winter Season
13. Contact with a meteorological weather forecaster for advice.
14. Scrutinise the weather forecasts to assess the winter service required.
15. Record and log in writing all decisions relating to the winter service.
16. Determination of appropriate service specifying the start time of treatment, the route number
Winter Service Operational Plan Vol 1 13 of 29

and the salt spread rate.
17. Collection of data for performance measurement.
18. Establish on the service completed such as weighbridge weights, response and treatment
times.
19. Monitor the salt usage and ensuring that new supplies are ordered and delivered to maintain
an appropriate level of salt.
20. To update the PEECS Senior Management Team, the Contact Centre and the Emergency
Planning Team on road conditions during severe weather (snow or widespread ice) and
ensure they are fully briefed and aware of the conditions.
21. Provide accurate information to Fleet Management on plant condition, listing any
mechanical faults, which would prevent satisfactory operation.
3.2.2 Fleet Management’s Responsibilities:
22. Provide and maintain vehicles adequate to carry out the salting of all routes within the
specified response times.
23. Provide the salt spreading equipment calibration test records (BS 1622) prior to the start of
the winter period.
24. To ensure that workshop facilities and appropriate skilled personnel are available on 24-
hour call-out during the winter period to repair and maintain vehicles and to deal with any
mechanical breakdowns that may occur.
3.3 Decision Making and Responsibilities
Service is triggered by information from the Meteorological Office's London Boroughs Winter
Forecast Service (see Section 6.0)
The Winter Service Call Out Officer has responsibility for ordering the service. During severe
conditions he will confirm with the Senior Manager Street Environment the actions to be taken.
The Winter Service Call Out Officer receives and assesses the weather forecast and should this
forecast predict changeable or marginal conditions then clarification can be sought from the
consultant forecaster. Often, a decision cannot be made from the main 11:00 forecast, due to
the changeable or marginal conditions, and later forecasts will need to be assessed. Refer to
Volume 2, Appendix 3 – ‘Weather Forecast and Decision Making Procedure’ and Appendix 5
‘Daily Decision’ Standard Proforma that tabulates the actions and factors to be considered when
making a decision.
It may be necessary to carry out an inspection of the routes to confirm actual conditions. It is
crucial to arrive at a decision, which does not compromise risk but does not lead to unnecessary
salting.
A ‘Daily Decision’ Standard Pro-forma is completed on a daily basis (see Appendix 5). The
completion and circulation of the pro-forma should be by 15:30 hours. It may be that the
‘Decision’ is to await a later weather forecast. Should this be the case the Winter Service Call
Out Officer should update the ‘Daily Decision’ pro-forma the following morning.
Details of the Routes and Priority Lists relating to the following treatments are detailed in
Volume 2; Appendix 1, Northern Area and Appendix 2, Southern Area, with associated
annexes.
Winter Service Operational Plan Vol 1 14 of 29

3.4 Salt Treatments
Pre-treatment salting to selected carriageways would be carried out if the forecast indicates:
• Bravo, Bravo/Charlie, Charlie, Charlie/Delta, Delta or Snow conditions
• Alpha and Alpha/Bravo in some circumstances (e.g. wet spots).
Post treatment salting to carriageways would be carried out when the conditions are:
• Extreme and severe and predicted to last for a prolonged period.
• Icy with formations on surfaces expected to remain after 08:00 hours.
Selective post treatment salting to selected footways and cycleways will be carried out when the
conditions are:
• Extreme and severe and predicted to last for a prolonged period.
• Where snow has been cleared and where conditions are extreme and severe and
predicted to last for a prolonged period.
• Where undisturbed snow accumulations are less than 30mm and where conditions are
extreme and severe and predicted to last for a prolonged period.
• Snow clearing will be programmed should the forecast indicate:
• Extreme and severe weather conditions with settled snow deeper than 30mm and
predicted to last for a prolonged period.
3.5 Service Delivery
The Winter Service Call Out Officer will ensure service provision as soon as the ‘Daily Decision’
pro-forma, (Volume 2, Appendix 5) is completed. Should a decision not be made by 1600hrs
then the Winter Service Call Out Officer will make his intentions known to the WST prior to this
time, indicating the likelihood of the decision. This is to ensure good communications and is
particularly important during severe weather conditions e.g. if snow has been predicted.
Timing of service is critical; e.g., badly timed service can lead to salt being washed away prior to
freezing temperatures. Once ice has formed it requires significant effort to remove it.
Telephone calls (from the Police or members of the public) requesting immediate treatment to
icy patches are often received out of hours. Each case needs to be considered separately.
Should the Police inform of dangerous conditions then immediate action to order treatment from
the Winter Service Call Out Officer is required.
Other reports may require a site inspection Winter Service Call Out Officer should full service
not have been called. When ‘Thames Water’ (TW) leaks are reported, then the Utility will be
contacted and treatment carried out unless confirmation is received that either the problem has
been solved or TW have put in place a salting regime themselves. The WST will recharge the
costs involved directly to TW for implementing the salting regime on their behalf.
3.6 Liaison arrangements with other authorities
There will be an interchange of information with all authorities that border or pass through the
London Borough of Hillingdon. The purpose for which is to ensure continuity of service. See
Appendix 7 for a list of adjoining highway authorities and contacts.
Winter Service Operational Plan Vol 1 15 of 29

4.0 QUALITY
4.1 Document control procedures
All information collated and recorded during the winter maintenance period is filed in the Winter
Service files held by the Responsive Maintenance Manager, (Mr Terry Kenealy). The Winter
Service Operational Plan is held by the Responsive Maintenance Manager, The Street
Environment Manager (Mr James Birch) and the Highway Inspection Manager (Mr John
Fern).The following information will be held:
1. Copy of the London Weather Centre Forecasts.
2. Notes on discussions with the consultant forecaster during normal and out of hours periods.
3. The ‘Daily Decision’ pro-forma.
4. Copy of orders requesting service.
5. WST service returns recording the route number, vehicle registration number, drivers name,
date, start kilometres, finish kilometres, start time of mobilisation, start time of treatment,
finish time of treatment, vehicle weights in and out, (loaded and unloaded), weight of surplus
salt, weighbridge times and any vehicle/plant faults.
4.2 Circulation of documents
The Winter Service Operational Plan is issued on the London Borough of Hillingdon website
www.hillingdon.gov.uk and Intranet. Interested stakeholders will be informed that the Winter
Service Operational Plan is available on the website.
4.3 Information recording and analysis
The Street Environment Manager is to ensure that a Winter Service Operational Plan is
produced compiling the following procedures and checks:
Preparing for winter
1. Checking all of the routes to ensure that they remain appropriate
2. Receiving from the Fleet Management the calibration results for salt spreading equipment
and assessing its accuracy.
3. Receiving from the WST stand-by duty rotas and checking against the specification
requirements.
4. Receiving certification from a recognised Vehicle Plant Authority that all vehicles, plant and
equipment are fit to perform the Services.
5. Checking that the training of operatives is adequate
6. Checking that an appropriate supply of salt is ordered.
7. Checking that salt bins are serviceable and filled with an appropriate amount of salt.
8. Setting up and ordering weather forecasting service.
Action during winter
1. The decision making process.
2. Weather forecasts.
3. Response times and distribution of salt spreading.
4. Monitoring the WST performance.
Winter Service Operational Plan Vol 1 16 of 29

4.4 Arrangements for performance monitoring, audit and updating.
The Highways Inspection Manager will provide sufficient supervision in order to check the
performance of the WST winter weather service. This performance will be checked against the
specifications. Regular reports are to be submitted and issues of concern raised at the
Highways Inspection Manager/ HRMT meeting.
The Highways Inspection manager will be satisfied that:
1. Service is within the specified periods for response and treatment.
2. All roads within routes have been treated.
3. The specified spread rate has been adhered to.
4. The WST equipment is in good working order.
5. The weighbridge procedure ensures that each ticket specifies weight in, weight out, salt
used, time in and time out. A ticket will be available for every operation and vehicle.
6. Salt reserves are monitored and replenished as appropriate.
7. Salt spreading vehicles spread rates are checked during operation by inspection of the
vehicles during service.
8. Salt quality and effectiveness of storage facilities are checked at regular intervals.
Contamination of salt is checked.
9. The following local key performance measures will be compared:
10. Percentage of total network (carriageways) included on pre-treatment salting routes.
o Route optimisation – length of route travelled over length salted.
o Percentage of routes completed within three hours.
o Actual winter maintenance expenditure per kilometre of carriageway.
o The optimum weight of salt used per pre-treatment route at a spread rate of 10g/m2.
o The percentage of salt bins provided on main footways (not a footway priority-salting
route) where the gradient is steeper than 1 in 12.
Winter Service Operational Plan Vol 1 17 of 29

5.0 ROUTE PLANNING FOR CARRIAGEWAYS, FOOTWAYS AND CYCLE ROUTES
5.1 Carriageway routes for pre-treatment
The main criteria used in drawing up the predetermined routes were to maintain:
• Links to the national road network, industry, commercial and business centres.
• Maintain public transport and access by emergency services.
• Journeys to and from work.
When the road surface temperatures are expected to fall below 0 o C and Roads are expected to
remain generally dry, “Blackspots” are treated. “Blackspots” are hills, junctions and known
areas where it is known that frost or ice is likely to form locally (see Appendices 1A and 2A for
location lists)
When the road surface temperatures are expected to fall below 0 o C and Icy frost is expected to
form, Priority Routes are treated - routes of primary importance which tend to be “A“ roads
and “B“ roads (see Appendices 1A and 2A for location lists).There are 8 Priority routes made up
of 16 sections.
When the road surface temperatures are expected to fall below 0 o C and Icy patches or
widespread ice is expected to form, or snow is expected: Priority and Secondary routes are
treated. They include all roads which fall under the criterion used to draw up the predetermined
routes and include all bus routes. (see Appendices 1A and 2A for location lists) There are 8
Secondary routes made up of 12 sections
The routes have some flexibility and the Street Environment Manager will inform the WST of
additions that he requires as a result of reports of water main leaks etc., received during the
day.
No footways, pedestrian precincts or cycle ways are specifically included in pre-determined
routes for precautionary salting. Nevertheless, there will be a certain amount of over spill of salt
onto footways and cycle ways when precautionary salting is being carried out on adjacent
carriageways.
The Street Environment Manager will update the routes as necessary due to new constraints
imposed on access through, e.g. traffic calming measures or parking problems. Any
amendments will be provided to the WST as soon as possible.
Reports of wet areas due to the Statutory Utilities operations or plant, or from Contractor's sites
on the public highway will be treated until written confirmation is received that either the problem
has been solved or they have put in place a salting regime themselves. The WST will recharge
the costs involved in treating these on their behalf.
5.2 Carriageway routes for post-treatment
The primary and secondary salting routes identified above as pre-treatment routes may be
ordered for post treatment as conditions dictate.
Reports of Ice on the Public Highway Information from the police or emergency services will be
actioned in line with the priorities as described in this plan. Clarifications should be sought as to
whether it's one specific site or a general area and to the cause of the slipperiness. For example
Winter Service Operational Plan Vol 1 18 of 29

it could be either a diesel spill or a result of salt in solution
Post salting will only be considered on minor roads not included in the pre-determined routes in
response to a specific report that a particular road is in an icy condition and then only after it has
been inspected to confirm that treatment is necessary.
Minor roads will not be treated with salt until after the pre-determined routes have been
sufficiently treated to ensure that they remain open to traffic at all times. These roads will then
be treated on a hierarchical basis of importance and in response to specific requests from the
Police, public etc.
No action will be taken to treat ice on private roads (i.e. where there are no public right of
highway rights) unless specific arrangements are in place.
5.3 Ad hoc post-treatment
The Highways 24/7 Emergency Call Out team is available with full access to the gritting
vehicles. Should it ever be necessary, this team can call out the Winter Service Team if this
action is required by road conditions.
5.4 Snow Clearance
The decision to move to the snow clearance operation shall be made by the Winter Service Call
Out Officer, following consultation with the Street Environment Manager.
Snow fall of less than 30mm will not normally require any further action than precautionary
salting unless prolonged sub-zero temperatures are forecast.
For snow falls in excess of 30mm or when drifting occurs, post salting and ploughing will take
place on Priority and Secondary routes as soon as is practicable. In the most severe cases it
may be necessary to deploy all available resource to maintain free flow on the major routes and
minimise unsafe conditions.
5.5 Routes for footway treatment.
Footways will only be treated once snow has settled or during periods of prolonged freezing
conditions on a priority basis at locations including (See Annex B to Appendices 1 & 2):
• Town Centres
• Hospitals
• Old Peoples Homes
• Day Centres
• Schools (during term times only)
• Footbridges
• Bus Stops
Secondary footway treatment will be carried out once Priority footways have been treated (See
Annex B to Appendices 1 & 2). If any reports of icy footways are received for locations not
included in on the Priority or Secondary listings, the footway will be inspected to assess
whether it should be treated or not.
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The street-cleaning workforce are employed on snow treatment when conditions dictate and
routine street cleansing is then suspended. The workforce will be provided with snow shovels
and hand propelled salt spreaders. The Street Environment Manager, with the Director of
Planning, Environment Education and Community Services, will decide on whether additional
resources are required to supplement those already available.
5.6 Routes for cycle way/footpath and bridge treatment.
A review of cycleway treatment has taken place and the on-carriageway cycleway network
within the primary and secondary routes will be treated when the gritting of these routes is done.
The remainder of the cycleway network will be treated on a priority basis depending on level of
use, surface type, gradient and the severity of conditions and predicted duration of extreme
weather when resources allow.
5.7 Response and treatment times for carriageway and footway treatments
For post treatment to footways by the street cleansing service the response and treatment times
will vary. This work will be carried out during normal working hours and the gangs will be
provided targets for the completion of individual tasks. The response times for treatments during
severe weather will depend on the availability of resources.
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5.8 Standard Labour Force Working/Gritting Cyclic Schedule
All resources will follow the Working Time Regulations with the drivers following the following
shift rota:
Hours Item Comment
0500 - 0730 Gritting
0730 - 1500 Standard Working
Day
1500 - 1900 Stand Down
1900 - 2130 Gritting
2130 - 0500 Stand Down
0500 - 0730 Gritting
0730 – 1330
(1500)
Standard Working
Day
1330 - 1900 Stand Down
1900 - 2130 Gritting
2130 - 0500 Stand Down
0500 - 0730 Gritting
0730 - 1500 Standard Working
Day
1500 - 1900 Stand Down
1900 - 2130 Gritting
2130 - 0500 Stand Down
0500 - 0730 Gritting
0730 – 1330
(1500)
Standard Working
Day
1330 - 1900 Stand Down
1900 - 2130 Gritting
2130 - 0500 Stand Down
Please note that the Standard Working Day finishes at 1500hrs if
evening gritting is not required.
Please note that the Standard Working Day finishes at 1500hrs if
evening gritting is not required.
Note: Due to the dynamic nature of weather systems it is on occasion necessary to
deviate from the Standard Labour Force Working/Gritting Cyclic Schedule. This is
particularly relevant when the weather systems have the potential to create emergency
situations.
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5.9 Location and maintenance of salt bins and Salt Stores
Salt storage bins are located on the public highway at a number of potential problem locations
within the Borough. They are generally not sited on the salting routes and are provided for
public use. A list of these is shown in Volume 2, Appendices 1 & 2, Annexes C.
The Street Environment Manager will order the HRMT to inspect of all salt bins prior to the
winter season and report on their condition. He will order the HRMT to remove litter and
contaminated salt and to refill them. Following severe conditions the salt bins will be rechecked
and refilled. The Street Environment Manager will consider requests for new bins where the
following criterion is met:
• Salt bins will only be considered on roads with a footway on a steep incline (with a
gradient greater than 1 in 25).
• A salt bin shall not obstruct the passage of pedestrians.
• A salt bin will not be provided for use in private areas.
• Salt bins for public use will not be provided on a priority footway salting route.
• A salt bin will not be provided within 50 metres of another salt bin.
• A salt bin will not be positioned outside an resident’s house without their agreement.
Final decision on the location of Salt bins will be taken by the Cabinet Member for Planning ,
Transportation and Recycling.
5.10 Resilience Network
The Resilience Network is the minimum road network within the borough that will be gritted in
an emergency situation. The Resilience Network will be authorised by the Director of the Group
and may follow recommendation from the Local Government Association when they believe it is
required to keep London moving. When adopted the Priority & Secondary Carriageway routes
together with the Priority and Secondary footways will be maintained where possible but no ‘offroute’
gritting will take place unless ordered by the Group Director
The Resilience Network may be adopted in the following circumstances: -
• Shortage of salt stocks
• Prolonged severe weather forecasts where salt stocks could be compromised
• Other situations where the adoption is required to maintain a satisfactory level of Service
Winter Service Operational Plan Vol 1 22 of 29

6 WEATHER PREDICTION AND INFORMATION
6.1 Forecasting, inspections and other decision support information
Hillingdon subscribes to the Meteorological Office's London Boroughs Winter Forecast Service
which provides a four-times daily email & answer phone forecast service, a five-day forecast
service and direct contact with a weather forecaster. This supports the ‘Decision Making’
process and details of the service are contained in Volume 1, Appendix 3.3 and Volume 2,
Appendix 3. Hillingdon falls within the Climatic Domains Map and weather patterns for these
areas are detailed in Volume 2, Appendix 4.
6.2 Information to be provided
The information provided by the forecast is as detailed in Volume 2, Appendices 3 and 4.
6.3 Timing and circulation of information
The main forecast is at 11:00 hrs with updates at 17:00 hrs, 23:00hrs and 03:00 hrs.
The circulation list for the forecast emails should include those included on the Winter Service
Call Out Officer rota, the Street Environment Manager and a representative of the Emergency
Planning Team. Five day forecasts shall be forwarded by the Street Environment Manager to
the Group Director.
6.4 Reporting procedure
During extreme, severe and snow conditions a Council ‘daily bulletin’ may be issued to provide
information and guidance via All Staff Emails, the Council website and the Intranet. This will be
carried out in conjunction with the Emergency Planning Team and the Corporate
Communications team and at the request of the Group Director.
Winter Service Operational Plan Vol 1 23 of 29

7 ORGANISATIONAL ARRANGEMENTS AND PERSONNEL
7.1 Organisational chart and employee responsibilities
The Winter Service hierarchy for the London Borough of Hillingdon is
• Corporate Director Planning, Environment, Education & Community Services
• Head of Highways, Transportation, Planning Policy
• Senior manager Street Environment
• Highways Inspection Manager
• Winter Service Call Out Officers (4No)
7.2 Employee duty schedules, rotas and standby arrangements
The Street Environment Team shall draw up employee duty schedules, rotas and standby
arrangements at least two weeks before the start of the winter period.
7.3 Plant and vehicle manning arrangements
The Street Environment Team will ensure that adequate manning and standby requirements are
in place to carry out the service to the specification.
7.4 Training and development arrangements
The Street Environment Team shall ensure that all drivers of the Salt Spreading Vehicles shall
have received proper training and instruction in the safe and efficient operation of the vehicles
and their equipment. All drivers shall be qualified in accordance with the ‘Winter Maintenance
Operatives Assessment Scheme 6157’. Operators of loading shovels shall hold a Certificate of
Training Achievement issued by the Construction Industry Training Board, or equivalent. In
addition, all LBH operatives are qualified to City & Guilds 6159.
7.5 Health and safety procedures
The Street Environment Team will provide risk and COSHH assessments for materials and for
operations and explain the significance of these to all operatives. Appropriate PPE equipment
will be issued prior to the start of the winter season.
Winter Service Operational Plan Vol 1 24 of 29

8 PLANT, VEHICLES AND EQUIPMENT
8.1 Fleet inventory including license requirements and capacity.
Prior to the commencement of the winter period the Fleet Service Manager will supply the
HRMT a detailed fleet inventory with corresponding license requirements for inspection.
The vehicles/plant provided is as follows:
• 4 No Whale Iveco 12 Tonne Gritters, which carry 4.5 Tonnes of Salt.
• 2 No 4x4 Whale Iveco 12 Tonne Gritters, which carry 4.5 Tonnes of Salt.
• 2 No (Hired) Daf 18 Tonne Gritters, which carry 7.5 Tonnes of Salt.
• 1 No 1 Tonne Econ purpose built spreader on a 4 tonne Daewoo Vehicle.
• 2 No Loading Shovels.
• 6 No 4 Tonne Daewoo Vehicles.
• 6 No Glasdon Cruiser Turbocast 300 Manual Gritting Machines.
8.2 Location of plant, vehicles and other equipment
The WST will operate from the Harlington Road Depot at Hillingdon where the vehicles and
plant will be stored and maintained. In an emergency the WST may operate out of New Years
Green Lane Civic Amenity site, however salt stocks would have to be relocated there.
8.3 Garaging, servicing and maintenance arrangements
The vehicles shall be stored and maintained in an efficient and workable condition to ensure
reliable starting and use/performance.
8.4 Calibration procedures
The calibration of the salt spreading equipment shall be in accordance with BS 1622.
Calibration test record sheets will be provided to prior to Street Environment Team by Fleet
management before the start of the winter service season.
8.5 Fuel stocks and locations
The Fleet Management shall demonstrate to the HRMT that they have access to a guaranteed
supply of fuel for vehicles, which will be maintained and available during prolonged periods of
severe weather and during night salting periods.
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9 SALT AND DE–ICING MATERIALS
9.1 Location and capacity of stocks for salt and other materials
The HRMT site of operations is at Harlington Depot, Uxbridge. They shall maintain a stockpile
of salt for use during the Winter Service Period. This stockpile will vary in size during the
Service Period but shall be available and accessible at all times for delivery or
loading/collection.
The minimum stockpile at the beginning of the Winter Service Period will be as follows:
Low period – November & March - 1750 tonnes
High period - December January & February- 3500 tonnes
For the purposes of stock control a mean density of 1.3 tonnes /m 2 will be used.
A store of bagged salt will also be kept at Harlington Road Depot for sale to schools and other
such establishments. The minimum stockpile at the beginning of the Winter Service Period will
be 1000 bags
9.2 Supply and testing arrangements
The salt that is used on highways during winter is a naturally occurring rock salt, and shall be to
the requirements of BS 3247 ‘Salt for Spreading – Coarse Rock Salt’ (6mm particle size). It
shall be stored under cover where possible, to stabilise moisture contents, within the councils
premises.
9.3 Delivery arrangements
The HRMT shall provide the necessary mechanical loading shovel, other plant and labour to off
load and stack the salt. Major restocking will normally take place outside the Winter Service
period but may be at any time.
9.4 Treatment requirements including spread rates
The variable nature of winter conditions makes it difficult to define exact treatments and salt
applications. Guidance on appropriate spread rates is given in Appendix 3: It is to be noted that
below -11 degrees C rock salt treatment is ineffective.
9.5 Contacts and purchasing arrangements for supplies
The HRMT will ensure that stocks are monitored and are renewed to the required resilience
levels. The HRMT can purchase rock salt from:
Winter Service Operational Plan Vol 1 26 of 29

Cleveland Potash Ltd
Boulby Mine
Loftus
Saltburn by the Sea
Cleveland
TS13 4UZ
Contact Name: Jan Hunton, National
Sales Manager
Tel.No: 01287 640140 Fax: 01287
640934
Email: enquiries@clevelandpotash.co.uk
www.clevelandpotash.co.uk
Salt Union Ltd
Astbury House
Bradford Road
Winsford
Cheshire
CW7 2PA
Contact Name: National Sales Manager
Tel.No: 01606 59653-0 Fax: 01606
596531
Email: enquiries@clevelandpotash.co.uk
www.saltunion.com
10.0 Treatment Methods
10.1 Precautionary Salting
The target is to pre-salt the precautionary network before ice forms or snow settles on the road.
Essentially it is planned as a result of weather forecasts to pre-set spread rates following the
Decision and Treatment matrices in Appendix 3.
When continuous snow is forecast every effort will be made to ensure enough salt is applied to
melt the initial snowfall and to provide a wet surface.
10.2 Snow Clearance
Snow ploughing shall be undertaken as soon as snow depths exceed 30mm and combined with
successive salt spreading.
Light snowfalls may call for ploughing where local drifting has occurred, or to remove snow not
dispersed by traffic, for instance where traffic is reluctant to use outer lanes of dual
carriageways, or at night when traffic is light.
If snow depths reach 120mm, or when tackling drifts or when working on gradients, ploughing
may be undertaken without salting as the weight of the load may aid vehicle traction. As soon
as the situation is under control spreading will be resumed.
Where heavy or prolonged snowfalls accumulate on well-used (“Priority“ - see section 5.5)
footways , arrangements will be made to clear a route for pedestrians as soon as practical. If
freezing conditions persist, footways cleared of snow should be given a light salting to melt the
ice.
Clearance of snow from less heavily used (“Secondary”) footways will depend upon the
anticipated duration of freezing conditions. Provided the more heavily used footways have been
cleared and freezing conditions are expected to persist, then these footways may be cleared as
well.
Winter Service Operational Plan Vol 1 27 of 29

11 OPERATIONAL COMMUNICATIONS
11.1 Technical systems information
It is important that good communications are maintained during the winter period to ensure that
the response to poor conditions is effective and immediate.
At all times the HRMT supervisor should be available by mobile phone. The HRMT shall ensure
that two-way communication is maintained with all the Winter Service Vehicles. Contact
between vehicle operators and the HRMT Supervisors is to be maintained at all times during
winter service operations, so that salting progress can be monitored and to provide a rapid and
efficient response in emergency situations.
During normal working hours the Street Environment Manager or his deputy will be available via
the Council’s Contact Centre or by his mobile phone if they are away from the office.
The Winter Service Call Out Officer has responsibility for ordering service and is available
through a mobile phone service. During times when service has been ordered he will be
available to the HRMT supervisor by mobile phone.
During severe periods of weather (snow and widespread ice) problem areas may be notified by
phone calls received from the Police and members of the public via the Contact Centre. They
will act as a liaison to the Responsive Maintenance Manager and log these calls along with
reports from patrols on site.
11.2 Reporting arrangements and protocols
The ‘Daily Decision’ pro-forma will be circulated to the following:
1. Street Environment Manager
2. Highways Inspection Manager.
3. Winter Maintenance HRMT.
4. MouchelParkman Stewardship for Transport for London Roads TfL.
5. Surrey County Council.
6. Hertfordshire County Council.
7. Buckinghamshire County Council.
8. London Borough of Harrow.
9. London Borough of Hounslow.
10. London Borough of Ealing.
Contact details are included in Vol 2, App 7.
The ‘Daily Decision’ proforma’ confirms the action that has been taken. A Winter service notice
board is set up to display the current winter service information. Call Centre/Customer Care and
other staff will be able to keep abreast of the latest information.
Winter Service Operational Plan Vol 1 28 of 29

12 INFORMATION AND PUBLICITY
12.1 Local press and broadcast contact information
During extreme, severe and snow conditions a Council ‘daily bulletin’ may be issued to provide
information and guidance via All Staff Emails, the Council website and the Intranet. This will be
carried out in conjunction with the Emergency Planning Team and the Corporate
Communications team and at the request of the Group Director.
12.2 Responsibilities and guidance for providing information
It is the responsibility of the Group Director PEECS to provide information on winter service
matters. Information will be developed as appropriate for publication on the council website.
Winter Service Operational Plan Vol 1 29 of 29

WINTER SERVICE OPERATIONAL PLAN
0BWINTER SERVICE OPERATIONAL PLAN
FOR PUBLIC HIGHWAYS WITHIN THE
LONDON BOROUGH OF HILLINGDON
2011/2012
(28 th October 2011 to 30 th March 2012
1BVOLUME 2
2BAppendices & Annexes
1

WINTER SERVICE OPERATIONAL PLAN
Contents
Appendices Annex Page
1 108BNorthern Area 3
A Salting Routes and Winter Operational Service. 4
Revisions to salting routes. 5
Route Location of Hospitals, Railway Stations, Day
Centres, Residential Care Homes, Clinics, Medical
6
Centres, Military Infrastructure, Airfields, etc.
Carriageway Treatment – Hills/Junctions/Known Blackspots. 8
Priority Gritting Routes. 9
Secondary Gritting Routes. 16
Small Salt Vehicle Spreading Routes. 21
B Footways - Priority and Secondary Footway Treatment. 22
C Salt Bin Locations. 25
D Ice Sign Locations. 26
2 109BSouthern Area 27
A Salting Routes and Winter Operational Service. 28
Revisions to salting routes. 29
Route Location of Hospitals, Railway Stations, Day
Centres, Residential Care Homes, Clinics, Medical
30
Centres, Military Infrastructure, Airfields, etc.
Carriageway Treatment – Hills/Junctions/Known
Blackspots.
32
Priority Gritting Routes. 33
Secondary Gritting Routes. 41
Small Salt Vehicle Spreading Routes. 47
B Priority and Secondary Footway Treatment. 48
C Salt Bin Locations. 51
D Ice Sign Locations. 52
3 Weather Forecasting and Decision Making Procedure. 53
4 Climatic Domains Map 56
5 ‘Daily Decision’ – Standard Proforma. 60
6 Winter Service Daily Operational & Defect Report 61
7 Highway ‘Out of Hours’ Duty Engineer Rota. 62
8 Adjoining Highway Authorities and Contacts. 63
9 Weather Terminology. 65
10 Self Care - Guidelines For Highway Users During Winter. 71
11 Salt Bins - Guidelines For Their Use. 73
12 Changes in Winter Service Operational Plan. 74
2

WINTER SERVICE OPERATIONAL PLAN
17BAPPENDIX 1
Salting Routes and Winter Operational Service
AREA NORTH OF A40
3

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 1
Salting Routes and Winter Operational Service
The following list covers the full range of planned salting routes within the London
Borough of Hillingdon with priority and secondary routes.
18BNORTHERN AREA
1. CARRIAGEWAY PRIORITY ROUTES
Route Section Type Vehicle
1 1N,2N Carriageway Route Large salt spreading vehicle
2 3N,4N,5N Carriageway Route Large salt spreading vehicle
3 6N,7N Carriageway Route Large salt spreading vehicle
8 13N Carriageway Route Small salt spreading vehicle
2. CARRIAGEWAY SECONDARY ROUTES
Route Section Type Vehicle
1 8N,9N Carriageway Route Large salt spreading vehicle
2 11N Carriageway Route Large salt spreading vehicle
3 10N,12N Carriageway Route Large salt spreading vehicle
4

WINTER SERVICE OPERATIONAL PLAN
3BRevisions to Salting Routes included for 2011/2012
19BNORTHERN AREA
ANNEX A TO APPENDIX 1
Route Section Additions Deletions
2 3N Springwell La (to Cripps Farm).
2 4N Warren Rd.
2 5N Freezeland Way, Warren Rd.
3 10N
2 11N
Pamela Gdns, St Lawrence Dr,
Rodney Gdns, Burwood Ave (pt).
Field Way, Heathfield Rise, Manor
Rd,
The Oaks, Court Rd, Burnham Ave,
Sussex Rd (pt).
5

WINTER SERVICE OPERATIONAL PLAN
Carriageway Treatments
ANNEX A TO APPENDIX 1
Route Location of Hospitals, Railway Stations, Day Centres, Residential Care
Homes, Clinics, Medical Centres, Military Infrastructure, Airfields, etc.
The following is a list of hospitals, railway stations, day centres, residential homes,
clinics, medical centres, etc, within the borough.
Type Facility/Centre Road Name Ward Route Section Hierarchy
RS Northwood. Station Approach South Ruislip 1 1N Priority
RS Northwood Hill. Joel Street Nthwd Hills 1 2N Priority
RS West Ruislip High Road Eastcote 2 5N Priority
RS Ruislip Gardens. West End Road Manor 3 6N Priority
RS South Ruislip Station Approach South Ruislip 3 6N,12N Priority/Secondary
RS Ruislip High Street Manor 3 6N Priority
RS Ruislip Manor Victoria Road Manor 3 7N Priority
RS Eastcote Field End Road Eastcote 1 2N Priority
RS Ickenham Glebe Avenue Ickenham 2 11N Secondary
RS Hillingdon Long Lane Hill East 2 5N Priority
MOD RAF Northolt West End Road South Ruislip 3 6N Priority
H Mt Vernon Hospital
Rickmansworth
Road
Northwood 1 1N Priority
H Pinner Road Hospital Pinner Road Nthwd Hills 1 1N Priority
H Bishop’s Wood BMI Hospital
Rickmansworth
Road
Northwood 1 1N Priority
H Harefield Hospital Hill End Road Harefield 2 3N Priority
RCH Coppermill Care Complex Summerhouse Lane Harefield No route
RCH The Harefield Nursing Centre Hill End Road Harefield 2 3N Priority
RCH Cedar House High Street Harefield 2 4N Priority
RCH Denville Hall Ducks Hill Road Northwood 1 1N Priority
RCH Mountview
Rickmansworth
Road
Northwood 1 1N Priority
RCH Eastbury Nursing Home Eastbury Road Northwood 1 8N Secondary
RCH Frithwood Nursing Home Frithwood Avenue Northwood 1 8N Secondary
RCH Eastbury Nursing Home Eastbury Road Northwood 1 8N Secondary
RCH Hallowell House Hallowell Road Northwood 1 8N Secondary
RCH Briarwood Drive Briarwood Drive Nthwd Hills No route
RCH St Vincents Nursing Home Wiltshire Lane Eastcote 1 9N Secondary
RCH Sunningdale House Sunningdale Ave Eastcote No route
RCH
Whitby Dean Residential
Home
Whitby Road Cavendish 1 9N Secondary
RCH Northview Northview Eastcote 3 7N Secondary
RCH The Boyne Park Way Manor 3 7N Secondary
RCH Brachenbridge House Brackenhill South Rruislip 1 7N Secondary
RCH Ruislip Nursing Home West End Road South Ruislip 3 6N Priority
RCH Poplars Ickenham Road W Ruislip 2 5N Priority
RCH The Fairways Ickenham Road W Ruislip 2 5N Priority
RCH Blenheim Care Centre Ickenham Road W Ruislip 2 5N Priority
RCH Charles Curran House Boniface Road Ickenham No route
RCH Woodlands Long Lane Ickenham 2 5N Priority
RCH Bourne Lodge Bourne Court South Ruislip No route
HC & GP Harefield Health Centre
Rickmansworth
Road
Harefield 2 3N Priority
HC & GP Northwood Health Centre Acre Way Northwood No route
HC & GP Northwood Doctors Surgery Eastbury Road Northwood 1 8N Secondary
HC & GP
Northwood Consulting
Rooms
Greenhill Court Northwood No route
HC & GP Eastcote Health Centre
Abbotsbury
Gardens
Eastcote No route
HC & GP St Martin’s Medical Centre Eastcote Road Eastcote 1 2N Priority
HC & GP Ladygate Lane Surgery Ladygate Lane W Ruislip 3 10N Secondary
6

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 1
HC & GP Southcote Clinic Southcote Rise W Ruislip 2 11N Secondary
HC & GP
King Edwards Medical
Centre
King Edwards Road W Ruislip No route
HC & GP Wood Lane Medical Centre Wood Lane W Ruislip 2 5N Priority
HC & GP
King Edwards & Swakleys
MC
Swakleys Road Ickenham 2 4N Priority
HC & GP Dr Patel Wallasey Crescent Ickenham No route
HC & GP The Cedars Medical Centre Elliott Avenue Cavendish No route
HC & GP Dr Solomon & Ptnrs Queens Walk South Ruislip 3 12N Secondary
HC & GP Dr M L R Siddiqui Walnut Way South Ruislip No route
7

WINTER SERVICE OPERATIONAL PLAN
CARRIAGEWAY
Hills/Junctions/Known
Blackspots
GRITTING ROUTES
NORTHERN AREA
ANNEX A TO APPENDIX 1
Item Road Name / Location Limits of Treatment
1
Harvil Road (From The Drive to
Moorhall Road)
Precautionary 10g/m 2
2 Church Hill (From Priory Avenue to DoPrecautionary 10g/m 2
3
4
5
Rickmansworth Road (Twin Hill’s –
From Hill End Road to Woodcock
Hill)
Northwood Road (from Jackets
Lane to Shepherds Hill Farm)
Breakspear Road North (Drakes
Hill – from Gilbert Road North to
Harvil Road)
Precautionary 10g/m 2
Precautionary 10g/m 2
Precautionary 10g/m 2
6 Breakspear Road South Precautionary 10g/m 2
7
New Years Green Lane (from
Breakspear Road North to Harvil
Road)
Precautionary 10g/m 2
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate
required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned
to you.
8

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 1
CARRIAGEWAY
PRIORITY GRITTING ROUTES
NORTHERN AREA
ROUTE 1
SECTION 1N
COMMENCING FROM
105BNorthgate
A4180, Ducks Hill Road Copswood Way
A404, Rickmansworth Road (To Boundary) The Broadwalk
A404, Pinner Road (To Boundary) Links Way
A4125, High Street Northwood Wieland Road
A4125, Watford Road (To Boundary) Shefton Rise
B468, Green Lane and Return Hillside Rise
A4125, Church Road Hillside Gardens
Ravenswood Park
Catlins Lane
Hillside Crescent
Stanley Road
Plus: Mount Vernon Hospital
Kewferry Drive (Only on USnow weatherU condition indicator)
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate
required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned
to you.
9

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 1
CARRIAGEWAY
PRIORITY GRITTING ROUTES
NORTHERN AREA
ROUTE 1
SECTION 2N
COMMENCING FROM
B466, Eastcote Road (From Bury Street)
B466, High Road, Eastcote
Cuckoo Hill (To Boundary)
B472, Joel Street
Northwood Way
Hillside Road
Potter Street Hill
Potter Street
106BCheney Street
Highland Road
York Road
Lincoln Road
Cranbourne Road
Lichfield Road
Winchester Road
Colchester Road
Rochester Road
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate
required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned
to you.
10

WINTER SERVICE OPERATIONAL PLAN
CARRIAGEWAY
ANNEX A TO APPENDIX 1
PRIORITY GRITTING ROUTES
NORTHERN AREA
ROUTE 2
SECTION 3N
COMMENCING FROM
Breakspear Road North (From Fine Bush Lane)
Northwood Road (To Boundary)
Rickmansworth Road , Harefield (To boundary)
Hill End Road
Springwell Lane (to Cripps Farm)
Park Lane (To Boundary)
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate
required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned
to you.
11

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 1
CARRIAGEWAY
PRIORITY GRITTING ROUTES
NORTHERN AREA
ROUTE 2
SECTION 4N
COMMENCING FROM
B467, Swakeleys Road (From Breakspear Road to Long Lane)
Breakspear Road South
Harvil Road
Moorhall Road
Church Hill
High Street, Harefield
New Years Green Lane
Fine Bush Lane
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate
required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned
to you.
12

WINTER SERVICE OPERATIONAL PLAN
CARRIAGEWAY
ANNEX A TO APPENDIX 1
PRIORITY GRITTING ROUTES
NORTHERN AREA
ROUTE 2
SECTION 5N
COMMENCING FROM
B466, Long Lane (From Freezeland Way – Swakeleys Road)
B466, Ickenham Road
Kingsend
Wood Lane
High Road, Ickenham
B467, Swakeleys Road (Swakeleys R/bout to Breakspear Road)
A40, Western Ave (Swakeleys R/bout Only)
Warren Road
Freezeland Way (From Long Lane Junction West to Mini R/bout)
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate
required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned
to you.
13

WINTER SERVICE OPERATIONAL PLAN
CARRIAGEWAY
ANNEX A TO APPENDIX 1
PRIORITY GRITTING ROUTES
NORTHERN AREA
ROUTE 3
SECTION 6N
COMMENCING FROM
Breakspear Road (From Breakspear Arms to Bury Street)
Reservoir Road
A4180, Bury Street (From Breakspear Road)
A4180, High Street, Ruislip
A4180, West End Road To Polish Memorial
107BStation Approach
Windmill Hill
Pembroke Road
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate
required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned
to you.
14

WINTER SERVICE OPERATIONAL PLAN
CARRIAGEWAY
ANNEX A TO APPENDIX 1
PRIORITY GRITTING ROUTES
NORTHERN AREA
ROUTE 3
SECTION 7N
COMMENCING FROM
Bridle Road (Junction Field End Road to Boundary)
Field End Road (To Boundary at Rabournmead Drive)
North View (To Boundary)
Victoria Road
Park Way
Elm Avenue
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate
required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned
to you.
15

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 1
CARRIAGEWAY
SECONDARY GRITTING ROUTES
NORTHERN AREA
ROUTE 1
SECTION 8N
COMMENCING FROM
Thirlmere Gardens
Kewferry Road
Maxwell Road
Murray Road
Eastbury Road
Frithwood Avenue
Elgood Avenue
Woodgate Crescent
Gatehill Road
Hallowell Road
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate
required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned
to you.
16

WINTER SERVICE OPERATIONAL PLAN
CARRIAGEWAY
ANNEX A TO APPENDIX 1
SECONDARY GRITTING ROUTES
NORTHERN AREA
ROUTE 1
SECTION 9N
COMMENCING FROM
Chamberlain Way
Tolcarne Drive
Norwich Road
Wiltshire Lane
Wentworth Drive
Fore Street
Salisbury Road
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate
required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned
to you.
17

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 1
CARRIAGEWAY
SECONDARY GRITTING ROUTES
NORTHERN AREA
ROUTE 2
SECTION 11N
COMMENCING FROM
Hoylake Crescent
Copthall Road East
Bushey Road
Thornhill Road
Woodstock Drive
Swakeleys Drive
Glebe Avenue
Austins Lane
Lysander Road
Lymington Drive
Bembridge Gardens
Chichester Avenue
Sussex Road (Part)
Sharps Lane
Southcote Rise
Westcote Rise
Woodville Gardens
Glenhurst Avenue
Orchard Close
Hill Lane
Heathfield Rise
Manor Road
The Oaks
Court Road
Burnham Avenue
Field Way
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate
required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned to
you.
18

WINTER SERVICE OPERATIONAL PLAN
ROUTE 3
SECTION 10N
COMMENCING FROM
Howletts Lane
Marlborough Avenue
Ladygate Lane
Midcroft
Manor Way
Hawtrey Drive
College Drive
The Uplands
The Ridgeway
Kings College Road
Park Avenue
Evelyn Avenue
Elmbridge Drive
St Martins Approach
Pamela Gardens
St Lawrence Drive
Rodney Gardens
Burwood Avenue (Part)
CARRIAGEWAY
ANNEX A TO APPENDIX 1
SECONDARY GRITTING ROUTES
NORTHERN AREA
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate
required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned
to you.
19

WINTER SERVICE OPERATIONAL PLAN
CARRIAGEWAY
SECONDARY GRITTING ROUTES
NORTHERN AREA
ROUTE 3
SECTION 12N
ANNEX A TO APPENDIX 1
UCOMMENCING FROM
Oak Grove
Southbourne Gardens
Chelston Road
Cornwall Road
Torrington Road
Whitby Road
The Fairway
Long Drive
Queens Walk
Torcross Road
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate
required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned
to you.
20

WINTER SERVICE OPERATIONAL PLAN
CARRIAGEWAY
ANNEX A TO APPENDIX 1
PRIORITY GRITTING ROUTES
NORTHERN AREA
4BROUTE 8
SECTION 13N
Small Salt Spreading Vehicle
Section
13N
13N
13N
13N
13N
13N
13N
13N
13N
13N
Location
Ravenswood Park, Northwood
Northwood Way, Northwood Hills
Northwood Way, Church Road to
Hillside Road, Northwood
Fore Street, Ruislip
Park Avenue, Ruislip
Glenhurst Avenue, Ruislip
Orchard Close, Ruislip
Cornwall Road, Ruislip
The Avenue, Northwood
Pinn Way, Ruislip
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate
required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned
to you.
21

WINTER SERVICE OPERATIONAL PLAN
ANNEX B TO APPENDIX 1
Footways
Priority and Secondary Treatment (Severe Conditions/Snow)
In the event of snowfall preventing effective sweeping, cleansing operatives
and their vehicles (where appropriate) may be required to carry out snow
clearance or salting duties. During these periods it is likely that the cleansing
operation would be suspended.
The number of operatives / vehicles applied to this task will be at the
discretion of the Winter Service Call Out Officer in consultation with both the
Street Environment Manager and Service Manager (Waste). It is also
dependent on whether the full service is suspended or certain services e.g.
litter bin emptying will continue.
Footway entrances to railway stations; hospitals and many schools have been
included within priority footway treatment routes. The carriageway outside
many of these facilities has also been included within priority carriageway
treatment routes.
For secondary treatment, resources are to be applied in accordance with
severity of conditions and the predicted duration. Treatment will be phased
according to the priorities for pedestrian and vehicle movement after
considering the risk of injury and the level of use. The following to be treated
before clearing residential footways and carriageways;
(a)
(b)
(c)
(d)
(e)
(f)
(g)
Entrances to hospitals, clinics and medical centres.
Access/ entrances to bus stations and transport interchanges.
Outside schools/ special schools.
Major shopping frontages.
Local shopping areas.
Day centres, homes for older people/ sheltered housing.
Residential areas where access is difficult.
5BOn completion of treatment the resources will be employed on other footways
on a priority basis.
22

WINTER SERVICE OPERATIONAL PLAN
FOOTWAY
PRIORITY GRITTING ROUTES
NORTHERN AREA
Hand Salting Machines
ANNEX B TO APPENDIX 1
6BPedestrianised areas, bridges, subways, combined footway/cycleway,
footway/footpath.
Item Road Name Feature Limits of Treatment
1.
Rickmansworth
Road
Mt Vernon Hospital
Footway/path
2. Pinner Road Pinner Road Hospital Footway/path
3. Potter Street Northwood School Footway/path
4. Tolcarne Drive Harlyn School Footway/path
5. Wiltshire Lane Hayden School Footway/path
6. Fore Street Coteford School Footway/path
7. Old Hatch Manor Warrender Primary Footway/path
8. Dawlish Drive Lady Banks School Footway/path
9. Field End Road Field End School Footway/path
10. Field End Road Queensmead School Footway/path
11. Queens Walk Deanesfield School Footway/path
12. Stafford Road Ruislip Gardens School Footway/path
13. Herlwyn Avenue Sacred Heart School Footway/path
14. Southcote Rise
Bishop Winnington-Ingram CE
Primary
Footway/path
15. Ladygate Lane Whiteheath School Footway/path
16. Bushey Road Breakspear School Footway/path
17. Warren Road Vyners School Footway/path
18. Long Lane Douay Martyrs School Footway/path
19. Sussex Road Glebe Primary Footway/path
20. Glebe Avenue Ickenham Station Footway/path
21. High Road West Ruislip Station Footway/path
20BShop Front Routes
1 Ruislip High Street Kingsend to Eastcote Road
2 Joel Street Tolcarne Drive to Pinner Road
3 Victoria Road Manor Way to Chelston Approach
4 Green Lane Dene Road to Hallowell Road
5 Station Approach West End Road to West Mead
6 Northwood High Street Pinner Road to Emmanual Road
7 Field End Road Meadow Way to Woodlands Avenue
23

WINTER SERVICE OPERATIONAL PLAN
FOOTWAY
SECONDARY GRITTING ROUTES
NORTHERN AREA
ANNEX B TO APPENDIX 1
7BShop Front Routes
Hand Salting Machines
1 Harefield High Street
2 Gilbert Road Harefield
3 Howletts Lane Ruislip
4 Swakeleys Road Ickenham
5 Glebe Avenue Ickenham
6 Aylesham Drive Ickenham
7 Ickenham j/w Greenway
8 West End Road New Pond Parade
9 Field End Road Adjacent to BP Garage and Eastcote Arms PH
10 Whitby Road
11 Salisbury Road
24

WINTER SERVICE OPERATIONAL PLAN
Ref
ANNEX C TO APPENDIX 1
8BSalt Bin Locations
Road
Name
1 Springwell HA
2 Springwell HA
3
4
Welland
Road
Rodney
Close
District Location Details
NH
Adjacent to Springwell
Lock
300m south of
Springwell Lock
Jct. with Richmond
Road.
NH Opposite 17 to 20
Grade 1
in --
Comments
25

WINTER SERVICE OPERATIONAL PLAN
ANNEX D TO APPENDIX 1
21BIce Sign Locations
10BRef Road Name 1BDistrict Location Details Comments
Breakspear Road
Opp Breakspear Stables cottage
1
Harefield
On Ex post
North
cottages
2
Breakspear Road
Harefield Opp Bourne Farm On Ex post
North
3 New Years Green Harefield Half way down near opp No 4 On Ex post
4
Lane
New Years Green
Lane
5 Rickmansworth Road
Harefield Outside recycling centre On Ex post
Harefield
Outside High Lodge opp
boundary sign
On Ex post
Harefield
6 Rickmansworth Road
After layby just before double On Ex post
bend
7 Wiltshire Lane Northwood Hills Outside no 133 L/C 26
8 Wiltshire Lane Northwood Hills J/W Heatherfold Way L/C 31
With 5T over night
lorry ban
26

WINTER SERVICE OPERATIONAL PLAN
APPENDIX 2
Salting Routes and Winter Operational Service
AREA SOUTH OF A40
27

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 2
Salting Routes and Winter Operational Service
The following list covers the full range of planned salting routes within the London
Borough of Hillingdon with priority and secondary routes.
9BSOUTHERN AREA
1. CARRIAGEWAY PRIORITY ROUTES
Route Section Type Vehicle
4 2S,5S,6S Carriageway Route Large salt spreading vehicle
5 3S Carriageway Route Large salt spreading vehicle
6 4S,8S Carriageway Route Large salt spreading vehicle
7 7S,9S Carriageway Route Large salt spreading vehicle
8 16S Carriageway Route Small salt spreading vehicle
2. CARRIAGEWAY SECONDARY ROUTES
Route Section Type Vehicle
4 10S Carriageway Route Large salt spreading vehicle
5 13S Carriageway Route Large salt spreading vehicle
6 11S,15S Carriageway Route Large salt spreading vehicle
7 12S,14S Carriageway Route Large salt spreading vehicle
28

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 2
Revisions to Salting Routes included for 2011/2012
2BSOUTHERN AREA
Route 12BSection Additions Deletions
5 3S Lees Road.
4 5S A408 Holloway La.
4 6S Station Rd.
7 7S A408 Park View Rd. Peachey High
St
7 9S Bolingbroke Way.
7 12S The Green (pt), Rowan Rd (pt), Mulberry Pde.
5 13S
Adelphi Way, Leybourne Rd (pt), Ayles Rd,
Welbeck Ave (pt), Strafford Rd, Chatsworth Rd (pt).
7 14S
Carfax Road, Crowland Ave, Clarendon Road,
Carnarvon Drive, Granville Rd (Hayes), Mildred Ave,
Coronation Rd, Bedwell Gdns (pt).
Crowland Rd.
6 15S Park View Rd (Colham Grn r/bout to Colham Grn.
29

WINTER SERVICE OPERATIONAL PLAN
Carriageway Treatments
ANNEX B TO APPENDIX 2
Route Location of Hospitals, Railway Stations, Day Centres, Residential Care Homes,
Clinics, Medical Centres, Military Infrastructure, Airfields, etc.
The following is a list of hospitals, railway stations, day centres, residential homes, clinics,
medical centres, etc, within the borough.
13BType 14BFacility/Centre 15BRoad Name 16BWard 17BRoute 18BSection 19BHierarchy
RS Hillingdon Long Lane Hilldn East 5 3S Priority
RS Uxbridge High Street Uxb North Pedestrianised
RS West Drayton Station Approach W Drayton 7 7S Priority
RS Hayes & Harlington Station Road Botwell 4 6S Priority
RS Hillingdon Long Lane Hilldn East 5 3S Priority
MOD RAF Uxbridge Park Rd/Hillingdon Hill Uxb North 6 4S Priority
A Heathrow Airport T1,2&3 Heathrow No route
A
Heathrow Airport T4
Southern Perimeter
Road
Heathrow No route
A Heathrow Airport T5 Stanwell Moor Road Heathrow 4 5S Priority
H Hillingdon Hospital Pield Heath Road Brunel 5 3S Priority
RCH Sweetcroft Sweetcroft Lane Uxb North No route
RCH Residential Care Home Devon Way Uxb North No route
RCH
Parkfield House Nursing
Home
Charville Lane West Hilldn East No route
RCH The Old Vicarage The Greenway Brunel 6 8S Priority
RCH Residential Care Home Queens Road Uxb South No route
RCH Residential Care Home Worcester Road Uxb South No route
RCH Marion House Nursing Home Kingston Lane Brunel 6 8S Priority
RCH Merchiston House Colham Road, Brunel No route
RCH Colham Road Home Colham Road, Brunel No route
RCH Residential Care Home Heather Lane Yiewsley No route
RCH Residential Care Home Lowdell Yiewsley No route
RCH Chapel Lane Home Chapel Lane Uxb South No route
RCH Residential Care Home Whiteheart Avenue Brunel No route
RCH Residential Care Home Whiteheart Avenue Brunel No route
RCH Heathfield House Heath Road Hilldn East No route
RCH Residential Care Home Kingsway Botwell 7 14S Secondary
RCH Aston House Care Home Angel Lane Botwell 7 14S Secondary
RCH Ashwood Care Centre Derwent Drive Charvill No route
RCH Grange House Grange Road Townfield No route
RCH Hayes Cottage Care Centre Grange Road Townfield No route
RCH Residential Care Home Bishops Road Botwell No route
RCH Micado Home St Marys Road Townfield No route
RCH Residential Care Home Precinct Road Townfield No route
RCH Residential Care Home 2 Little Road Townfield No route
RCH Blandford Lodge Blandford Waye Yeading No route
RCH Swanage Lodge Swanage Waye Yeading No route
RCH Hatton Grove Home Hatton Grove W Drayton No route
RCH Residential Care Home Frays Avenue W Drayton No route
RCH Franklin House The Green, Swan Road W Drayton No route
RCH The Burroughs Mill Road W Drayton No route
RCH Residential Care Home Money Lane W Drayton No route
HC & GP Medical Health Centre Long Lane Hilldn East 5 3S Priority
HC & GP Acorn Medical Centre Long Lane Hilldn East 5 3S Priority
HC & GP Long Lane Surgery Long Lane Hilldn East 5 3S Priority
HC & GP Oaklands Medical Centre Long Lane Hilldn East 5 3S Priority
HC & GP Belmont Medical Centre Belmont Road Uxb North 6 8S Priority
HC & GP Uxbridge Health Centre George Street Uxb North 6 4S Priority
HC & GP The Medical Centre Brunel University Brunel No route
HC & GP Church Road Surgery Church Road Brunel 7 7S Priority
30

WINTER SERVICE OPERATIONAL PLAN
HC & GP The Timbers Surgery Shepherds Close Uxb south No route
HC & GP
West London Medical
Centre
Harlington Road Yiewsley 4 2S Priority
HC & GP Dr GN Stearnes' Practice West Drayton Road Yiewsley 6 4S Priority
HC & GP Yiewsley Health Centre High Street Yiewsley 7 7S Priority
HC & GP Otterfield Medical Centre Otterfield Road Yiewsley No route
HC & GP New Medical Centre The Green W Drayton 7 12S Secondary
HC & GP Medical Health Centre Harmondsworth Road W Drayton 4 5S Priority
HC & GP Hayes Stadium Judge Heath Lane Botwell 7 14S Secondary
HC & GP The Cedar Brook Practice Kingshill Close Charville No route
HC & GP Dr Kamaluddin & Partners Lansbury Drive Charville 5 13S Secondary
HC & GP Medical Health Centre Yeading Lane Yeading 5 3S Priority
HC & GP The Willow Tree Surgery Jollys Lane Yeading No route
HC & GP
Uxbridge College Health College Way,
Centre
Coldharbour Lane
Townfield No route
HC & GP The Practice Shakespeare Avenue Barnhill 5 13S Secondary
HC & GP The Warren Medical Centre
The Warren, Uxbridge
Road
Barnhill 5 3S Priority
HC & GP Townfield Doctors Surgery College Way Townfield No route
HC & GP ‘Kincora’ Coldharbour Lane Townfield 4 6S Priority
HC & GP Minet Clinic Avondale Drive Townfield No route
HC & GP The Orchard Practice Station Road Botwell 4 6S Priority
HC & GP Hayes Medical Centre Old Station Rd Botwell No route
HC & GP Elers Road Health Clinic Elers Road Pinkwell No route
HC & GP Medical Health Centre North Hyde Road Pinkwell No route
HC & GP Heathrow Medical Centre St Peters Way Brunel No route
HC & GP Glendale House Surgery High Street Heathrow 4 6S Priority
31

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 2
10BCARRIAGEWAY
Hills/Junctions/Known
Blackspots
GRITTING ROUTES
1BSOUTHERN AREA
Item Road Name / Location Limits of Treatment Comments
1 Stockley Road Precautionary 10g/m 2
2 Charville Lane (from Pole Hill Road to Bury Avenue) Precautionary 10g/m 2
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned to you.
32

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 2
CARRIAGEWAY
PRIORITY GRITTING ROUTES
SOUTHERN AREA
ROUTE 4
SECTION 2S
UCOMMENCING FROM
A437, Harlington Road (From Depot) to Dawley Road and back
A408, Yiewsley By Pass (Stockley Road) to include all slip roads
B465, West Drayton Road to include slip roads.
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned to you.
33

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 2
CARRIAGEWAY
PRIORITY GRITTING ROUTES
SOUTHERN AREA
ROUTE 4
SECTION 5S
UCOMMENCING FROM
A3044, Holloway Lane (From Cherry Lane R/bout to Hatch Lane)
A408, Holloway Lane
A3044, Hatch Lane
A3044, Stanwell Moor Road (To Boundary)
Old Bath Road (To Boundary)
A408, Sipson Road (All)
Harmondsworth Road
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned to you.
34

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 2
CARRIAGEWAY
PRIORITY GRITTING ROUTES
SOUTHERN AREA
ROUTE 4
SECTION 6S
COMMENCING FROM
Coldharbour Lane
A437, Station Road
A437, High Street, Harlington
North Hyde Road (All)
Station Road
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned to you.
35

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 2
CARRIAGEWAY
PRIORITY GRITTING ROUTES
SOUTHERN AREA
ROUTE 5
SECTION 3S
COMMENCING FROM
A4020, Uxbridge Road (Junction Harlington Road to Boundary Canal
Bridge)
A437, Long Lane (To Junction Western Avenue turning In Hillingdon
Station)
Pole Hill Road
Charville Lane (To Langdale Drive)
Yeading Lane
Willow Tree Lane
Glencoe Road
Broadmead Road
Hillingdon Hospital
Lees Road
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned to you.
36

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 2
CARRIAGEWAY
PRIORITY GRITTING ROUTES
SOUTHERN AREA
ROUTE 6
SECTION 4S
COMMENCING FROM
A437, Harlington Road - From depot to Uxbridge Road
A4020, Hillingdon Hill
A4020, Hillingdon Road
B483, Park Road
B467, Harefield Road
Vine Street
High Street, Uxbridge
Chippendale Waye
York Road
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned to you.
37

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 2
CARRIAGEWAY
PRIORITY GRITTING ROUTES
SOUTHERN AREA
ROUTE 6
SECTION 8S
COMMENCING FROM
Hercies Road
Honeycroft Hill
Belmont Road
Oxford Road (To Boundary)
Cross Street
Trumper Way
New Windsor Street
Rockingham Road
A4007, St Johns Road
Cowley Mill Road
The Greenway
Kingston Lane
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned to you.
38

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 2
CARRIAGEWAY
PRIORITY GRITTING ROUTES
SOUTHERN AREA
ROUTE 7
SECTION 7S
COMMENCING FROM
Pield Heath Road
Church Road
Station Road, Uxbridge
A408, High Street, Cowley
A408, High Road, Cowley
B470, Iver Lane
A408, Cowley Road (To Trumpers Way)
Falling Lane
A408, High Street Yiewsley
Station Road West Drayton
Cherry Lane
A408 Park View Road
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned to you.
39

WINTER SERVICE OPERATIONAL PLAN
CARRIAGEWAY
UANNEX A TO APPENDIX 2
PRIORITY GRITTING ROUTES
SOUTHERN AREA
ROUTE 7
SECTION 9S
COMMENCING FROM
A437, Dawley Road
Shepiston Lane
Swallowfield Way
Rigby Lane
Bolingbroke Way
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned to you.
40

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 2
ROUTE 4
SECTION 10S
CARRIAGEWAY
SECONDARY GRITTING ROUTES
SOUTHERN AREA
COMMENCING FROM
Harmondsworth Lane
Sipson Lane
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned to you.
41

WINTER SERVICE OPERATIONAL PLAN
ROUTE 5
SECTION 13S
CARRIAGEWAY
SECONDARY GRITTING ROUTES
SOUTHERN AREA
ANNEX A TO APPENDIX 2
COMMENCING FROM
Romney Parade
Bury Avenue
Goshawk Gardens
Adelphi Way
Adelphi Crescent
Kingshill Avenue
Balmoral Drive
Lansbury Drive
Park Lane/Park Road
Shakespeare Avenue (Uxbridge Road to Balmoral
Drive)
Greenway
Yeading Gardens
Springfield Road
Granville Road (Uxbridge)
Beaconsfield Road
Windsor Avenue
Ryefield Avenue
Grosvenor Crescent
Sutton Court Road
Snowden Avenue
Weymouth Road
Leybourne Road (Part)
Ayles Road
Welbeck Avenue (Part)
Stratford Road
Chatsworth Road (Part)
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned to you
42

WINTER SERVICE OPERATIONAL PLAN
ROUTE 6
SECTION 11S
CARRIAGEWAY
SECONDARY GRITTING ROUTES
SOUTHERN AREA
ANNEX A TO APPENDIX 2
COMMENCING FROM
Salt Hill Close
Beacons Close
Woodhall Close
Fairlight Drive
Pages Lane
Cambridge Road
Fairfield Road
Bakers Road
Honey Hill
Vine Lane
Court Drive
Windsor Street
Gravel Hill
Blossom Way
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned to you.
43

WINTER SERVICE OPERATIONAL PLAN
ROUTE 6
SECTION 15S
CARRIAGEWAY
SECONDARY GRITTING ROUTES
SOUTHERN AREA
ANNEX A TO APPENDIX 2
COMMENCING FROM
Colham Green Road (Junction Pield Heath Road to West Drayton Road)
Violet Avenue (Part)
Appletree Avenue (Part)
Royal Lane
Cleveland Road
Whitehall Road
Arundel Road (Public Highway Only)
Eskdale Road
Salisbury Road
Wallingford Road to Salisbury Road
Ashley Road
Waterloo Road
Park View Road (Colham Green R/bout to Colham Roundabout)
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned to you.
44

WINTER SERVICE OPERATIONAL PLAN
ROUTE 7
SECTION 12S
CARRIAGEWAY
SECONDARY GRITTING ROUTES
SOUTHERN AREA
ANNEX A TO APPENDIX 2
COMMENCING FROM
Swan Road
The Green (Part)
Mill Road
Church Road
Wise Lane
Rowan Road (Part)
Laurel Lane
Porters Way
Mulberry Parade
Lavender Rise
Horton Road
Tavistock Road
Trout Road (Part)
New Peachey Lane
Peachey Lane
Packet Boat Lane
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
UDO NOTU grit UNSTATEDU roads.
4. Return holder to your Supervisor after completing the route assigned to you.
45

WINTER SERVICE OPERATIONAL PLAN
ROUTE 7
SECTION 14S
COMMENCING FROM
CARRIAGEWAY
SECONDARY GRITTING ROUTES
SOUTHERN AREA
ANNEX A TO APPENDIX 2
Kingsway
Morgans Lane
Angel Lane
Wood End Green Road
Botwell Lane
Judge Heath Lane
Botwell Common Road
Church Road
Central Avenue
Pump Lane
Blyth Road
Clayton Road
Granville Road (Hayes)
Carnarvon Drive
Crowland Avenue
Pinkwell Lane
Skipton Drive
Bourne Avenue
Mildred Avenue
Crown Close
Cranford Lane
Cranford Drive
Roseville Road
Carfax Road
Coronation Road (Part)
Bedwell Gardens (Part)
Clarendon Road
NB.
SPECIAL INSTRUCTIONS TO OPERATIVES
1. Before departure check with your Supervisor on the spread rate required.
2. Also check that the spinner is set correctly.
3. Ensure that all roads stated above have been thoroughly completed.
DO NOT grit UNSTATED roads.
4. Return holder to your Supervisor after completing the route assigned to you.
46

WINTER SERVICE OPERATIONAL PLAN
ANNEX A TO APPENDIX 2
CARRIAGEWAY
PRIORITY GRITTING ROUTES
SOUTHERN AREA
ROUTE 8
SECTION 16S
Small Salt Spreading Vehicle
Route
17S
17S
17S
17S
17S
17S
Location
Vine Lane, Hillingdon.
Vine Lane from Hillingdon Hill to Court Drive,
Hillingdon.
Thorney Mill Road, continuation of Mill Road.
Yeading Gardens, Hayes.
Yeading Gardens from Yeading Lane to
Shakespeare Avenue, Hayes.
Freemans Lane, continuation of Judge Heath
Lane.
47

WINTER SERVICE OPERATIONAL PLAN
ANNEX B TO APPENDIX 2
Priority and Secondary Treatment (Severe Conditions/Snow)
In the event of snowfall preventing effective sweeping, cleansing operatives and their
vehicles (where appropriate) may be required to carry out snow clearance or salting
duties. During these periods it is likely that the cleansing operation would be
suspended.
The number of operatives / vehicles applied to this task will be at the discretion of the
Winter Service Call Out Officer in consultation with both the Street Environment
Manager and Service Manager (Waste). It is also dependent on whether the full
service is suspended or certain services e.g. litter bin emptying will continue.
Footway entrances to railway stations; hospitals and many schools have been
included within priority footway treatment routes. The carriageway outside many of
these facilities has also been included within priority carriageway treatment routes.
For secondary treatment, resources are to be applied in accordance with severity of
conditions and the predicted duration. Treatment will be phased according to the
priorities for pedestrian and vehicle movement after considering the risk of injury and
the level of use. The following to be treated before clearing residential footways and
carriageways;
(a)
(b)
(c)
(d)
(e)
(f)
(h)
Entrances to hospitals, clinics and medical centres.
Access/ entrances to bus stations and transport interchanges.
Outside schools/ special schools.
Major shopping frontages.
Local shopping areas.
Day centres, homes for older people/ sheltered housing.
Residential areas where access is difficult.
12BOn completion of treatment the resources will be employed on other footways on a
priority basis.
48

WINTER SERVICE OPERATIONAL PLAN
23BPriority Footway Treatment – Hand Salting Machines
ANNEX B TO APPENDIX 2
Pedestrianised areas, bridges, combined cycleway / footway
/footpath
Item Road Name Feature Limits of Treatment
1. Pield Heath Road Hillingdon Hospital Footway/path
2. Hewens Road Mellow Lane School Footway/path
3. Polehill Road Swakeleys School Footway/path
4. Clifton Gardens Abbotsfield School Footway/path
5. Royal Lane Bishopshalt School Footway/path
6. Greenway Uxbridge High School Footway/path
7. Cowley Road Whitehall School Footway/path
8. Belmont Road Hermitage School Footway/path
9. Ryefield Avenue Ryefield School Footway/path
10. Windsor Avenue Oak Farm School Footway/path
11. Colham Green Road Colham Manor School Footway/path
12. Bury Avenue Charville School Footway/path
13. Lansbury Drive Grange Park School Footway/path
14. Raynton Drive Hayes Park School Footway/path
15. Station Road Hayes Station Footway/path
16. Long Lane Hillingdon Station Footway/path
17. High Street Uxbridge Station Footway/path
18. Oxford Road, Uxbridge Footbridge (rear of ‘Pavillions’) Footway/path
19. Cowley Road to Bridge Road, Uxbridge Footbridge (Over River Fray) Footway/path
20. St Andrews Roundabout, Uxbridge Subway Footway/path
21. High Road/New Peachey Lane, Cowley Subway Footway/path
22. Hillingdon Road/Vine Street, Uxbridge Subway Footway/path
23. Uxbridge Road/Fulham Close, Hayes Subway Footway/path
24. Uxbridge Road/Hayes End Road, Hayes Subway Footway/path
25. Glencoe Road/Kings Ash Drive, Hayes Subway Footway/path
Priority Treatment, Shop Front Routes
120BUxbridge High Street
Uxbridge Road
Station Road West Drayton / High
Street Yiewsley
Coldharbour Lane
Station Road, Hayes
St Andrews Roundabout to Harefield Road to include Vine Street, Windsor
Street, Belmont Road to York Road, Uxbridge Bus Garage and Bakers Yard
Long Lane to Yeading Lane
Falling Lane to Swan Road
Birchway to Botwell Lane
Train Station to Botwell Lane
49

WINTER SERVICE OPERATIONAL PLAN
14BSecondary Footway Treatment – Hand Salting Machines
Secondary Treatment, Shop Front Routes
13BANNEX B TO APPENDIX 2
121BGreenway Uxbridge
Cowley Road Various
Moorfield Road
Swan Road
Porters Way
Harmondsworth Road
Laurel Lane
Harmondsworth Village
Sipson Road
Harlington High Street
St Dunstans Close
Redmead Road
Dawley Road
Bourne Avenue
Kingshill Avenue
12BPield Heath Road
Violet Avenue
Falling Lane
Hillingdon Hill
Sutton Court Road
Ryefield Avenue
Long lane / Hercies Road
Welbeck Avenue
Balmoral Drive
Willowtree Lane
Brookside Road
North Hyde Road
Dawley Road Princess Park
Dawley Road Merrymans
Judge Heath Lane
Woodend Green Road
50

WINTER SERVICE OPERATIONAL PLAN
ANNEX C TO APPENDIX 2
24BSalt Bin Locations
Ref Road Name 123BWard Location Details Grade 1 in -- Comments
1 Harefield Road Uxbridge North P (fs)
2 Harefield Road Uxbridge North P (fs)
3 Harefield Road Uxbridge North P (fs)
51

WINTER SERVICE OPERATIONAL PLAN
ANNEX D TO APPENDIX 2
25BIce Sign Locations
None
52

WINTER SERVICE OPERATIONAL PLAN
Weather Forecasts and Decision Making Procedure
APPENDIX 3
INTRODUCTION
Weather forecasting is provided by the Met Office as part of their London Winter Weather
service. The period of service is 29th October 2010 to 1st April 2011.
From the 29 October, the highways Call Out Officer will contact the London Weather Centre
08704 555801, DAILY inc weekends to ascertain the weather forecast and fill in the
appropriate pre-printed daily weather report form, Appendix 5. The RMS will be contacted
and organise appropriate action.
SERVICE
Service consists of three elements:
• Email Forecast
Main 24-hour forecast issued at 11:00 hrs is emailed to the SSMM and a copy for file.
Copy given to Highway Duty Officer on call ‘out of hours’ with a copy of any order
letters if service has been ordered during working hours by SMSS. Faxed updates
may be issued by the Met. Office at other times and available ‘out of hours’ if the
forecast has significantly changed.
• Answer Phone Forecast
This provides the same information as from the emailed forecasts and can be
accessed ‘out of hours’ to update 11:00 hour forecast. Forecasts are provided at
11:00, 17:00, 23:00 and 03:00. Intermediate forecasts will be issued if there is a
‘weather warning’.
• Consultancy Service direct with forecasters
Direct discussions with the duty forecaster for clarification of latest answer phone/fax
forecast only. Main points of discussion and decisions resulting from these are to be
recorded on the paper forecast and filed ASAP. (Note: Do not divulge PIN number
to others!)
CONDITION INDICATORS
The following indicators are used in all forecasts and this system is the main element of the
Met Offices London Winter Weather Service.
INDICATOR
NIL
ALPHA
BRAVO
CHARLIE
DELTA
SNOW
TEXT DECODE
Road surface temperatures expected to remain above zero degrees Celsius and snow not expected.
Road surface temperatures expected to fall below zero degrees Celsius but roads are expected to
remain dry.
Road surface temperatures expected to fall below zero degrees Celsius and icy frost is expected to
form.
Road surface temperatures expected to fall below zero degrees Celsius and icy patches are expected
to form.
Road surface temperatures expected to fall below zero degrees Celsius and widespread ice is
expected to form.
Snow is expected.
53

WINTER SERVICE OPERATIONAL PLAN
APPENDIX 3
All messages will commence with a Condition Indicator - or perhaps two Condition Indicators
if required - and this will be followed by amplifying information on timing, (e.g. AFTER 2100)
and, if appropriate, height (e.g. ABOVE 300 FT).
26BDecision Making Procedure
Condition
Indicator/s
Nil
Alpha
Precipitation, etc
No rain, No hoar
frost, No fog
No rain, No hoar
frost, No fog
Predicted Road Condition
Wet/Wet
Pre-salted in last 24
Dry
Patches
hrs - no rain since.
May fall below freezing.
Route coverage
6 6 6 0
Expected to fall below freezing – See Note (E).
1 (note A) 6 (note A) 6 (note A) Black spots only
Alpha Locally Bravo
Bravo
Expected hoar frost
Expected fog 1 1 (note B) 4 (note B) Priorities
Bravo Locally
Charlie
Charlie
Delta
Expected rain
before freezing
Expected rain
during freezing
3 (note C) 3 (note C) 3 (note C) Priorities & Secondaries
2 (note D)
2 or 5
(note D)
2 or 5 (note D) Priorities & Secondaries
Snow Snow 1 1 1 Priorities & Secondaries
The decision to undertake precautionary treatments should if appropriate be adjusted to take
account of residual surface moisture. All decisions require continuous monitoring & review.
27BACTION
1 Salt before frost/Snow. 4 Inspection required.
2 Salt before frost, as
required during rain &
again after rain stops.
5 Inspection required with crews ‘standing by’ in depot for instructions.
3 Salt after rain stops. 6 No action likely, monitor weather
54

WINTER SERVICE OPERATIONAL PLAN
APPENDIX 3
Note A - Particular attention should be given to wet areas where there is a possibility of
water running onto the highway from adjacent land that could wash off salt previously
deposited. These areas need to be closely monitored and may require treating morning and
evening.
Note B - When a weather warning contains reference to expected hoarfrost considerable
deposits of frost are likely to occur. Hoarfrost usually occurs in early morning and is difficult
to cater for because of the probability that any salt deposited on a dry road too soon before
its onset may be dispersed before it can become effective. Close monitoring is required
under this forecast condition, which should ideally be treated just as the hoarfrost is forming.
Such action is normally not practicable and salt may have to be deposited on a dry road
prior to and close as possible to the expected time of the condition. When hoarfrost is
forecast at other times the timing of salting operations should be adjusted accordingly.
Note C - If under these circumstances rain has not ceased by early morning, crews should
be called out and action initiated as rain ceases.
Note D - Under these circumstances rain will freeze on contact with running surfaces and full
pre-treatment should be provided even on dry roads. This is a most serious condition and
should be monitored closely and continuously throughout the danger period.
Note E - Weather warnings are often qualified by altitudes in which case differing action may
be required from each depot.
Salt Spread Rates shall be according to the following:
55

WINTER SERVICE OPERATIONAL PLAN
APPENDIX 4
London Boroughs Winter Weather Service
Climatic Domains Map
Version 6, September 2007
The area covered by the London Boroughs can usefully be sub-divided into 8 climatic
domains based on air temperatures in the winter weather season. Road temperatures
cannot be directly inferred from these domains, as many other factors come into play, but
they are a good starting point. Road temperatures will vary across a given domain on a
given night and this will be described in the forecast recording where possible. Bridges and
flyovers are a special case and are generally colder than the surrounding roads and will be
given special mention in the recording if warranted.
Background to the selection of the Domains
Various weather elements can be used to define climatic areas, for example rainfall, wind
strength, temperatures and incidence of air frost. The domains map has been constructed
using average overnight minimum temperatures between November and March, the core
winter weather season. In data sparse areas, height and land use have been used as an
effective way of delineating the domains and feedback from the London Boroughs, plus local
knowledge
Causes of different climatic areas
There are various factors that affect the climatology of an area and any list will include
factors that are not weather related, such as height of the ground above sea level, land use
or underlying soil type, although these factors will often be reflected in the climatological
records. High ground will normally be colder than a low-lying area and as a result has a
higher incidence of snowfall when long-term averages are considered. The air temperature
naturally drops by 1 degree Celsius per 100m of increasing elevation.
Sandy soils and dry chalk ground are more frost prone as they are good conductors and
cool down rapidly. In general, rural areas are coldest, but within the London suburbs land
use varies markedly over short distances. In London the buildings have a significant effect
on the climate, absorbing heat by day and releasing it at night and this is known as the
Urban Heat Island Effect.
The topography of an area is also important because cold air drains from high to low ground
at night given light surface winds, creating frost hollows. The reverse situation can occur with
frost forming on hilltops and not in the valleys. This will occur when cold air sweeps in over
warm ground and the lowest layers can, on this occasion, stay above freezing. This could
occur for example as a cold front clears the area overnight, bringing clearing skies, lower
humidity and lower air temperatures.
Cold dry valleys
The dip slopes of the North Downs and the Chilterns slope towards London and the cold air
draining down from them accumulates at the margins of London. (Cold air is denser and so it
collects in hollows).
The Urban Heat Island Effect
Overnight average minimum temperatures are 2 to 2.5 degrees Celsius higher in Central
London (Domain 1) compared with the coldest boroughs (Domain 8). On an individual night
the strength of the wind and the wind direction will be the main factors determining the
magnitude of the Heat Island effect and its shape. Nights with light winds, under about 10
mph, and clear skies will exhibit the greatest temperature differences between Central
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WINTER SERVICE OPERATIONAL PLAN
London and the suburbs and on occasion’s differences of 8 degrees Celsius in air
temperature can occur. Winds blow most frequently from the west or southwest over London
so that the Heat Island extends northeast from the City itself when long-term averages are
examined. Again variations on a given night occur and, for example, with easterly winds the
Heat Island is displaced westwards.
Road meteorology in the winter
General comments
This analysis has again used air temperature data to delineate the domains, but it would be
unwise on a given night to infer a road temperature from air temperature measurements.
The actual road temperatures observed across a domain or borough will be affected by
numerous factors such as road construction, shading of the road and elevation, as well as
meteorological factors, and it is not possible to sub-divide finely enough to cover all stretches
of road. Even within the domains there will be variations with local hot and cold spots. For
example, well shaded roads will be colder by day but overnight, reduced sky-view in heavily
built-up areas, will keep roads relatively warm compared to well exposed roads. The weather
on an individual night will determine the distribution of temperature, but the climatic domains
based on average overnight temperatures remain a useful sub-division.
A possible sequence of events overnight
On calm, clear nights lower areas will in general be colder and the London Heat Island effect
will be at its greatest, with large temperature differences between Domain 1 and the colder
domains. On windy, cloudy nights, higher ground will be coldest, and the Heat Island effect
will be least evident. Warning signs for a cold night are a clear sky, low humidity (dry air)
before sunset and little or no wind.
Dry air cools more rapidly whereas moister air may allow fog to form before the air
temperatures dips to zero, with air and ground temperatures steadying off or even rising as
the fog thickens. In the evening frost may form on grass and other surfaces that cool rapidly
eg cars. The depth of this cold and possibly frosty air will increase as successive layers of
the air are cooled.
The temperature of different surfaces
A frost can occur and hoar frost deposits may be seen on grassy surfaces, car windscreens,
car roofs and house roofs long before road temperatures dip to zero and indeed, frost can
occur on such surfaces without road temperatures falling sub-zero on a given night. As a
general rule of thumb road temperatures are warmer than most other surfaces due to a
reservoir of heat beneath the road surface and the temperature over a grass surface can be
3 to 6 degrees Celsius colder than a nearby road surface.
Blades of grass are poor conductors and do not conduct heat from the ground and air tends
to be still between the blades themselves. Although metal is a good conductor of heat,
parked cars are also cold, being thermally insulated from the ground, and cars can be one of
the coldest surfaces observed overnight by up to 8 degrees. The air coming into contact with
the grass or car will be cooled and dew is then deposited, with hoar frost forming if the
temperature of the surface falls sub-zero.
Hoar frost deposits are a good visual sign of a sub-zero surface, but absence of hoar frost
deposits does not however mean a road, or indeed any other surface, is above freezing.
These dry frosts occur when the humidity of the air is very low, typically with winds from the
east and to a lesser extent the northwest.
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Bridge decks
APPENDIX 4
Bridges and elevated road sections can be colder than surrounding roads, and could be the
only portions of road in a domain or borough affected by ice or hoar frost. A bridge is not in
contact with the ground and is therefore divorced from the heat reservoir, and it also has two
surfaces, which will radiate heat. In winter the air temperature is usually lower than the deep
ground and so bridges tend to be colder and this will be most marked early in the winter
weather season, and they can be colder by around 2 degrees Celsius. However, there are
also occasions when these will be maintained at higher values than lower lying roads. After
a long cold spell when the ground is well cooled at depth, bridge decks will warm more
quickly when the milder air arrives. Bridges over rivers are liable to have more instances of
hoar frost, due to the local increase in moisture content, but equally well may be kept
warmer by the heat from the rivers.
The condition indicators
In this section some more clarification is given on the road condition indicators used in the
London Boroughs Winter Weather Service.
124BNIL
ALPHA
BRAVO
CHARLIE
DELTA
28BSNOW
Road Surface Temperatures are expected to remain above zero degrees Celsius and snow is not
expected.
Road Surface Temperatures are expected to fall below zero degrees Celsius but roads are
expected to remain dry.
Road Surface Temperatures are expected to fall below zero degrees Celsius and hoar frost is
expected to form.
Road Surface Temperatures are expected to fall below zero degrees Celsius and icy patches are
expected to form.
Road Surface Temperatures are expected to fall below zero degrees Celsius and widespread ice
is expected to form.
Snow is expected.
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APPENDIX 4
Nil
This is largely self-explanatory and indicates a night with no expected winter weather
hazards and roads above freezing. The road temperature value quoted should be used
though to gauge risk, for example, plus 10 Celsius is mild but 1 Celsius is more marginal and
worthy of monitoring in later forecast issues.
29BAlpha
This covers occasions when road surfaces are expected to fall sub-zero but are expected to
remain dry. However, this can be qualified by 'locally' if only a few roads are expected to dip
sub-zero. Moisture sources may lead to hoar frost formation and seepage to icy patches,
especially in more rural boroughs, so this often means that alpha, dry roads dipping subzero,
will be qualified by 'locally bravo or charlie'. This indicates a risk of hoar frost for
example on bridges or local icy patches from seepage, water left from showers, re-freezing
snow melt etc. Seepage will only be mentioned if significant eg after a prolonged wet spell.
30Bravo
This indicator refers to the deposition of hoar frost on roads. It may also be qualified for
specific types of roads, eg more rural roads, bridges and flyovers, or by 'locally charlie'. The
latter would be reported firstly if hoar frost was expected to form but some roads were known
to be wet already, with a risk of ice forming, and secondly for conditions with marked hoar
frost where the first vehicles to pass by would cause icy patches.
31BCharlie
This covers icy patches caused by water remaining from showers, rain, snow, hail, and refreezing
snow melt. Seepage will only be mentioned when widespread as the water would
also freeze, but that will largely come down to local Borough knowledge, in the same as
water from Fire Brigade action and burst water mains. Again Charlie may be qualified by
'locally' for specific areas, bridges etc or if showers scattered across London have left roads
damp.
32BDelta
This is the worst category and would be used when widespread rain, snow or widespread
heavy showers have cleared leaving many roads wet. This category is mutually exclusive in
that for an area, alpha locally delta or bravo locally delta would not be reported. Charlie
locally delta may be reported on occasions. Roads will generally dry within two hours of rain
ceasing, but temperature levels need to be considered, as roads cool when drying out, a
process known as evaporative cooling or chilling.
3BSnow
This covers snow events when the snow is expected to be deposited and cause road
problems. Odd flurries of snow are unlikely to warrant use of this indicator, with these
covered in the main text. This indicator will often be qualified by another indicator.
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‘Daily Decision’
APPENDIX 5
WINTER SERVICE ‘DAILY DECISION’ for LONDON BOROUGH OF HLLINGDON
DECISION DURING NORMAL WORKING HOURS
11:00hrs Weather Forecast Condition Indicator
Update of 11:00 hrs Weather Forecast Condition Indicator: (if any)
Cloud Cover: (Nil/partial/total)
Road Condition: (wet/dry etc.)
Snow Cover at 09:00 hrs: (Nil/yes - approx. depth mm)
Inspection Notes: (If any have been carried out):
Estimate of effectiveness of Residual Salt: (no effect/some effect/unknown/etc)
Hours lapsed since Routes were last salted
ACTION TO BE TAKEN: No Action/Action Required/Await Later Forecast (Delete as appropriate)
Decision made by:……………..….. Signature:…………………….. Date/Time:………….
ACTION TO BE TAKEN FOLLOWING LATER FORECAST ‘OUT OF HOURS’. No Action/Action
Required
(Delete as appropriate)
Decision made by:……………..….. Signature:…………………….. Date/Time:……….…
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APPENDIX 6
STREET ENVIRONMENT
WINTER SERVICE DAILY OPERATIONAL & DEFECT REPORT (2010/11)
ACTIVATED DAY...……………....DATE…………………TIME……………..ACTUAL WEATHER ENCOUNTERED.
WEATHER ENCOUNTERED.
ALFA
BRAVO
CHARLIE
DELTA
ACTION TAKEN: PRECAUTIONARY 10 g/m 2 ICE 20 g/m 2 SNOW 40 g/m 2
DRIVER & MATES
NAMES
REG NO. FLEET NO PHONE
HW 1 Phone number
HW 2 Phone number
HW 3 Phone number
HW 4 Phone number
HW 5 Phone number
HW 6 Phone number
HW 7 Phone number
PHONE & TORCH (TO BE
RETURNED AFTER EACH RUN)
1
3+13+Hill hospital
South
2
2+6+9+14
South
3
4+8+11+15
South
4
5+7+10+12
South
5
1+2+8+9
North
6
3+4+5+11
North
7
6+7+10+12
North
DETAILS OF DEFECT
IF NONE X
HW 8 Phone number
Width restrictions & bridges
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Highway ‘Out of Hours’ Call Out Officer Rota
APPENDIX 7
Details of the Highway ‘Out of Hours’ Call Out Officer, has been removed from this
document, as they are for operational use only.
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APPENDIX 8
34BAdjoining Highway Authorities and Contacts
Duty Officers: - Details of individual duty rotas are for operational use only and are detailed in
the RBK Duty Officers emergency file.
Transport for London
Responsible for the following roads within the London Borough of Hillingdon;
A30 (part), A4 (part), A312 (part) and A40 (part)
South and East Stewardship Commission – Mouchel Parkman.
Contact – Kevin Bishop 07889 097284 – Winter Service Operational Plan.
Slough Borough Council.
Included in our routes – Bath Road.
Contact:
Slough Borough Council,
Town Hall
Bath Rd,
Slough,
SL1 3UQ
Tel: 01753 475111
E-mail: Hcontactus@epsom-ewell.gov.uk
35BSurrey County Council
Responsible for roads (included in our routes) adjoining; A3044.
Contact:
Surrey County Council,
County Hall,
Penhyrn Road,
KINGSTON UPON TAMES,
Surrey.
KT1 2DY.
Tel: 020 8541 9896
36BHertfordshire County Council
Responsible for roads (included in our routes) adjoining; A404, Harefield Road, White Hill,
Kewferry Road, Eastbury Avenue, Watford Road, Oxhey Drive
Contact:
Hertfordshire County Council
County Hall
Pegs Lane
Hertford SG13 8DQ
Tel: 0300 123 4047
E-mail: hertsdirect@hertscc.gov.uk
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APPENDIX 8
37Buckinghamshire County Council
Responsible for roads (included in our routes) adjoining; A4020 – Oxford Road, Slough
Road, B470 – Iver Lane, Ford Lane, Thorney Mill Road.
Contact:
Buckinghamshire County Council
Walton Street,
Aylesbury,
Buckinghamshire
HP20 1UA Tel.
Tel: 0845 3708090, Emergency Response Team on 01296 486630
E-mail: Htfb@buckscc.gov.uk
London Borough of Harrow
Responsible for roads (included in our routes) adjoining; - Potter Street, Rickmansworth
Road, Cuckoo Hill, Eastcote Road, Eastern Avenue, Eastcote Lane, Eastcote Lane North.
Contact:
London Borough of Harrow,
PO Box 57,
Station Road,
Harrow,
HA1 2XF.
Tel: 020 8424 1886
E-mail: Hhighways@harrow.gov.uk
38BLondon Borough of Ealing
Responsible for roads (included in our routes) adjoining; - Kingshill Avenue, Yeading Lane,
Broadmead Road, A4020 – The Broadway.
Contact:
London Borough of Ealing,
Perceval House,
14-16 Uxbridge Road,
Ealing,
W5 2HL.
Tel: (020) 8825 6222, 8am-6pm or (020) 8825 5000 (after hours).
E-mail: Hcustomers@ealing.gov.uk
London Borough of Hounslow
Responsible for roads (included in our routes) adjoining; - Park Lane.
Contact:
Highways Maintenance Team
London Borough of Hounslow
Civic Centre
Lampton Road
Hounslow
TW3 4DN
Tel:020 8583 5555
Fax:020 8583 4913
Hhighways@hounslow.gov.uk
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APPENDIX 9
39BWeather Terminology
40BAccretion
The build-up of snow on objects such as overhead cables, road signs and tree branches. It
occurs when wet snow with temperatures close to freezing is accompanied by a strong wind.
The wet snow freezes on to objects under pressure of the wind. The build up of snow can be
quite large, and can cause damage to cables and trees.
41BAir Frost
This occurs when air temperatures, (measured between one and two metres above the
ground) fall below 0 o C.
42Black Ice
Clear ice forms on roads due to the freezing of standing water. Occasionally it may be
formed by the transformation of hoarfrost, under pressure from car tyres. The name black
ice is used, as the road blacktop can be seen through the clear ice. The term is much
beloved by the media, but is used less frequently in road weather forecasts.
43Blustery
Used to describe showers that are accompanied by strong gusts of wind.
4BClimatic domain
An area of a county with broadly similar climatic characteristics, e.g., an urban area, or a high
level area, or a coastal area (see Forecast site).
45BCondensation
This is the change of state of water vapour to liquid water, thus forming a thin film or mist of
water on surfaces such as roads. During the process, heat is released (see Dew point).
46BConfidence Factor
Used by weather forecast organisations to give guidance to highway engineers on the
likelihood of forecasts having to be subsequently amended. Confidence HIGH means that
amends are unlikely, and confidence LOW that amends are likely. Some use is made of
MEDIUM confidence, although usage is discouraged, as it can be confusing.
47BDamped
This is the thermal map type that occurs on cloudy, windy nights. Temperature differences
along a stretch of road are at a minimum, (see Thermal map).
Deposition
This term covers the change of state from water vapour to ice without going through the
liquid water stage, (see Hoar frost).
48BDew
Liquid water formed on a surface by condensation from the atmosphere.
49BDew Point
The temperature to which a sample of air must be cooled for condensation to take place.
Dew point can be measured directly by instrumentation, e.g., road sensors.
50BDrifting
The movement of snow (usually powder snow) under the influences of wind. Snow need not
be actually falling for drifting to take place.
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51BDrizzle
Small droplets that fall from low cloud. Drizzle can last for several hours and cover a large
area, or be intermittent and localised.
52BDry Adiabatic
The temperature fall with height within a sample of air before its lapse rate becomes
saturated. The rate of fall is 0.98 o C per 100m, (around 3 o C per 1,000 feet).
53BDry Frost
The road surface is at 0 o C or below, with most roads expected to be dry. However, ice may
form due to seepage, burst pipes or in known hollows where moisture persists.
54BEvaporation
The change of state from water to water vapour. The process takes in heat and causes
cooling, (see Latent heat).
5BExtreme
The thermal map type that occurs on calm, clear nights. Temperature differences along a
stretch of road tend to be at their maximum, (see Thermal map).
56BFlash Frost
The rapid build up of hoar frost on roads around sunrise. Roads can change from dry to a
significant cover of hoarfrost within 15 minutes, (see Hoar frost).
57BFog
The suspension of water droplets in air at or close to the ground.
Forecast Site
A road sensor site for which a graphical forecast is provided. It is usual to have one forecast
site per climatic domain, (see Climatic domain).
58BFreezing Fog
Fog which forms when air temperatures are below freezing. The fog droplets remain in the
liquid state, but will freeze on contact with trees and other objects, and under some
circumstances the road surface, (see Rime).
59BFreezing Point
The temperature at which pure water will change to ice, (although strictly it is the temperature
at which ice melts), in practice, 0.0 o C.
60BFreezing
A very dangerous condition where raindrops, (from warmer air above) from rain/drizzle fall on
to surfaces below freezing, thus freezing instantly and causing widespread ice. Fortunately,
rare in the UK. Most likely to occur at the end of a prolonged spell of cold weather.
61BFrequent
Used in conjunction with showers. The term frequent showers imply that nearly all areas will
catch a shower, and many places will see more than one shower, (see Isolated and
Scattered).
62BFrost
A generic term to cover temperatures below freezing. Where these temperatures occur
describes the type of frost, (air frost, ground frost, road frost etc). The rather loose term of
‘frost’ is rarely used in road weather forecasts without qualifying it.
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Note that the word frost does not supply deposition on a road surface. The deposition of ice
crystals on to a road surface is known specifically as hoar frost, (see Hoar frost).
63BGale
Mean wind speed of 39 mph or more, or with gusts to 49 mph or more. A severe gale has a
mean wind of 45 mph or more, or has gusts to 70 mph or more.
64BGround Frost
This term is used to describe occasions when temperatures on the ground, (as opposed to in
the air) fall below freezing. The official meteorological definition uses the temperature over
short mown grass. The term has little relevance to winter maintenance, which is concerned
specifically with road temperatures. The term ‘ground frost’ hear on media forecasts, (TV,
radio) does not guarantee that there will also be a road frost.
Hail
Precipitation in the form of balls or pieces of ice. Usually occurs in showers.
65BHoar Frost
Deposition of water vapour directly as ice on to ground surfaces. The ice forms as white
crystals and is usually highly visible. Hoar frost is more common over grass than on roads.
Hoar frost on roads may quickly change to clear ice under pressure from car tyres.
6BIce
A generic term for frozen water. In winter maintenance terms usually refers to clear ice on
road surfaces, (see Black ice).
67BIcy Patches
Used in road weather forecasts to indicate ice formation in prone areas only, (gutters, dips in
the road surface, etc.).
68BIcy Stretches
Used in road weather forecasts to indicate more-widespread ice.
69BIsolated
Used in conjunction with showers. Isolated showers imply that most places will stay dry, but
somewhere within the area of coverage a shower may occur, (see Frequent and Scattered).
70BIntermediate
The thermal map type that occurs on nights where cloud cover, wind speed, (or both) is
variable. Road temperature differences tend to lie between the Damped and extreme
values, (see Thermal map).
71BInterval
Used to describe cloud breaks or amounts of sunshine, generally of less than one hours
duration.
72BLatent Heat
The quantity of heat absorbed or emitted, without change of temperature, during a change of
state of unit mass of a material.
73BMarginal
This describes nights where the road temperature is expected to be very close to freezing
(normally within 1 o C)
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74BPeriod
Used to describe the length of cloud breaks or amounts of sunshine, generally of two hours
or more duration.
75BPowder Snow
The form of snow that occurs when air temperatures are well below freezing, (-2 o C or less).
This form of snow is very fine (like sugar crystals), drifts very easily, but does not tend to
stick to objects, (no accretion). It can be handled by snow blowers. Salt is usually less
effective.
76BPrecipitation
A general term that covers all water (or ice), which ‘falls’ from the skies. As well as rain,
sleet, snow and hail it also includes dew, hoar frost and fog.
7BPrecipitation Type
The individual type of precipitation. In winter maintenance activities, this will be one of rain,
drizzle, sleet, wet snow, dry snow, hail, freezing rain and freezing drizzle, (see Precipitation).
78BProlonged
Used to describe showers that merge together producing a spell or continuous precipitation,
generally lasting more than one hour and covering a relatively large area.
79BRain
Water droplets that fall from clouds. Rain takes many forms, and can be of many different
intensities and duration’s. Within road weather forecasts there will often be differentiation
between rain and showers, the former usually referring to longer-lived but light intensity
precipitation, and the latter to short duration but heavy intensity.
80BRelative Humidity
This is the amount of actual water vapour held in a sample of air at a given temperature,
divided by the maximum amount of water that could be held in that sample of air at that
temperature, expressed as a percentage. Within fog or heavy rain, humidities may reach
100%. On a sunny, warm afternoon in summer, humidities may fall to 30%. On an average
night in winter, humidities rarely fall below 80%, (which is the minimum humidity at which salt
crystals will start to absorb water).
81BRime
Deposition of ice from freezing fog. It is a white form of ice, similar to hoar frost, but has a
finer (at times feathery), structure. On roads, tends to be more of a problem at higher levels
than lower levels.
RST
Common abbreviation for road surface temperature. Saturated Air is said to be saturated
when, at a given temperature, it holds the maximum amount of water vapour possible. Any
cooling below its current temperature will result in condensation. The relative humidity of
saturated air is 100%.
Saturated
The rate at which air temperature falls with height within adiabatic lapse saturated air, e.g.,
within fog or cloud. It is less than the rate dry adiabatic lapse rate, 0.49 o C per 100 metres or
around 1.5 o C per 1,000 feet.
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82BScattered
Used in conjunction with shower. Scattered showers imply that wide covering of showers
across an area is expected. Most places will see a shower but one or two locations may stay
dry, (see Frequent and Isolated).
83BSeepage
Leakage of ground water from roadside verges. Can cause roads to become wet, when
otherwise they would have stayed dry, possibly leading to ice formation later.
84BShower
A short spell of precipitation, generally less than an hour, and covering a relatively small
area. It can be assumed that a shower will be of rain unless qualified by the words snow,
hail or wintry.
85BSleet
Partially melted snow. If precipitation becomes heavy, sleet may readily turn to snow.
Snow
A form of precipitation where tiny ice crystals bond together into flakes. Snow can be either
of Wet or Powder forms.
86BSpell
Used to describe the length of cloud breaks or amount of sunshine, generally between one
and two hours duration.
87BThermal
The temperature trace along a road surface, (usually Fingerprint Recorded by an infrared
thermometer during a thermal mapping run). Regardless of the mean temperature of the
trace, it shows the thermal characteristics of the road surface (warm and cold spots).
Thermal Map
The representation of relative variations in road surface minimum temperature for each of
three weather categories, presented in colour bands, (usually 1 o C).
8BThermal Map Type
Defined as damped, or intermediate or extreme (see previous entries). When using thermal
maps in the forecast mode, the weather forecast organisations will send the thermal map
type with the ice prediction graph.
89BTrend
The likely direction in which the weather is moving over the next two to five days, e.g.,
‘turning much colder with night frosts’ or ‘remaining mild and windy’.
90BWash Off
This occurs when rain is sufficiently heavy to remove salt solution from the road surface.
91BWater Vapour
Water in its gaseous state.
92BWet Snow
Snow, which falls with air temperatures close to freezing point. It melts easily and can be
very sticky (see Accretion). It is more common in the UK than the other variant of powder
snow.
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93BWidespread
Used to describe showers. Implies that nearly all areas will see a shower and some areas
may see more than one (see Frequent).
94BWintry
This term covers precipitation, which contains ice in one of its many variants, (sleet, wet
snow, hail). The term is used extensively in media forecasts, (e.g. wintry showers are
expected, showers will turn wintry over hills). However, the term is ambiguous in road
weather terms and hence any precipitation containing ice will be described more fully, with
likely effects on the road.
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APPENDIX 10
15BSelf Care -
Guidelines for Highway Users during winter
95BIntroduction
London Borough of Hillingdon has a duty to ensure that snow or ice does not endanger the
safe passage along a highway. The law recognises that all highways cannot be treated and
recommends that a prioritised approach should be adopted.
London Borough of Hillingdon has developed a Winter Service Operational Plan to provide
reasonable service during the winter period. It is also reasonable to expect highway users to
take care during the winter months to reduce the chance of mishap caused by wintry
conditions.
To help focus on what can be done by an individual to prepare for their journeys the following
guidelines have been set:
96BInformation on London Borough of Hillingdon Winter Operational Service
It is important to know the service that London Borough of Hillingdon undertakes during the
winter period.
Check the Operational Plan out by visiting the Hwww.hillingdon.gov.ukH website.
Details of the roads and footways that are included for treatment and the location of salt bins
are included.
97BWeather Forecast
• Stay informed of the latest weather forecasts through broadcasts on the radio or
television and try to predict how these may effect you over the coming few days.
• Discuss and exchange information with your family and friends.
• Is your journey essential?
• If the forecast is for severe wintry conditions, is it reasonable to consider whether a
journey is essential.
• Can it be delayed? - If it is essential take time to prepare for it.
• Try to avoid periods of darkness particularly for journeys in remote areas.
• Choosing the best route
• Try to keep to the major routes and bus routes, which are set as the top priorities for
treatment in the Plan.
• Clothing and Footwear
• It is so important to wear appropriate footwear and clothing during the winter period to
reduce the chance of accident or discomfort. A pair of strong shoes or boots with
treads allowing good grip on surfaces is essential.
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Walking
If your journey is on foot then keep to the centre of the footways and cross at controlled
points. Be aware of where your nearest salt bin is and read the instructions within the Plan
for its use and purpose.
98BDriving
The Highway Code provides rules to apply to all road users and some are legal
requirements. It is essential reading and a selection of those relating to winter conditions are
included below.
Prepare your vehicle in advance of winter and ensure that the battery is well maintained and
that there are appropriate anti-freeze agents in your radiator and windscreen bottle.
The following are legal requirements:
• Before you set off you must be able to see so clear all of the ice and snow from all of
the windows.
• You must ensure that lights and number plates are clean.
• Make sure that the mirrors are clear and the windows are demisted thoroughly.
• When driving in snowy weather.
• Drive with care even if the roads have been salted.
• Keep well back from the vehicle in front as stopping distances can be ten times
greater than on dry roads.
• Be prepared for the road conditions changing over relatively short distances.
• Drive extremely carefully in icy conditions and avoid sudden actions as these could
cause a skid.
• Drive at a slow speed in a high gear as possible and brake and accelerate very
gently.
• Drive slowly particularly on bends where skids are more likely. Brake progressively
on a straight before you reach the bend and having slowed down steer smoothly
around the bend.
• Check your grip on the road surface when there is snow or ice by choosing a safe
place to brake gently. If the steering feels unresponsive this may indicate ice and
your vehicle losing grip on the road. When travelling on ice tyres make virtually no
noise.
• During extreme/severe weather if your journey is essential carry a spade, a warm
drink and emergency food in case your vehicle breaks down.
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WINTER SERVICE OPERATIONAL PLAN
APPENDIX 11
Salt Bins - Guidelines for Their Use.
London Borough of Hillingdon has developed a Winter Service Operational Plan, which
details the range of services for the salting of the highway during the winter period. Part of
the service is to provide salt bins in various locations on footways and verges.
The following questions and answers provide useful information to residents and guidelines
for using salt bins:
9BWhat are salt bins?
Salt bins are plastic containers located on footway or verges, which hold naturally occurring
rock salt for use during the winter period. The bins are not locked and are easily accessible.
10BWhat is their purpose?
They are to be used by residents to spread salt onto the highway surfaces (normally
footways) during severe winter conditions to prevent or treat the formation of ice and snow.
During severe winter conditions the many of the carriageways will be treated by purpose built
salting vehicles as part of the secondary route network and therefore whilst salt from salt bins
can be used for carriageways there is less urgency to do so.
101BWhere are they located?
They are generally located in quieter roads in places where the footways are steep or where
extreme problems are known to exist. The roads have not been included within the priority
route network for footways. Details can be found within the Winter Service Operational Plan
either at a local library, or alternatively, at the hillingdon.gov.uk website.
102BHow do you spread the salt?
It is important to wear appropriate clothing to minimise the chance of accident or discomfort
caused by the cold weather. A pair of strong shoes or boots with treads allowing good grip
on surfaces is essential. A pair of gloves with good grip is also recommended. A garden
spade or shovel and a small stick would be adequate for spreading the salt. Try not to over
load the spade. Hold the spade in one hand and the small stick in the other and use the stick
to flick the salt onto the surface moving left and right to cover the area in an even layer. Do
not over salt the surface – the salt does not need to be spread like sand. A volume the size
of a bag of sugar is more than sufficient to treat ten paces of footway length. Be careful not
to spread over the grass verges. For areas away from the salt bin a wheelbarrow, if
available, is useful to transport some salt.
103BWhen is the time to spread salt?
Ideally in advance of predicted extreme conditions. Keep abreast of the latest weather
forecasts through broadcasts on the radio or television. It is difficult to remove ice once it
has formed. To be effective in snow conditions the snow needs to be cleared in advance by
spades or brooms.
104BOther considerations!
The salt bins are not locked and people need to be encouraged not to place litter into them or
put graffiti onto the surfaces.
If any damage is caused to the salt bins, or they need refilling then please phone the
Customer Contact Centre on 01895 556000.
If you require any further advice then contact the Customer Contact Centre on 01895
556000.
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WINTER SERVICE OPERATIONAL PLAN
16BChanges to Winter Service Operational Plan
APPENDIX 12
Changes from Each year the Winter Service Operational Plan is updated to take account of
changes that are needed to ensure that the Winter Service continues to operate in an
efficient way. Minor changes are influenced by information/observations received from a
variety of sources, including, from the contractor’s vehicle driver’s reports, winter
maintenance officers, councillors, residents and highway users within the Borough. Since
last year only one minor change has taken place, with the addition of 2 minor roads to the
secondary routes. However, during the three years prior to this, several significant,
externally influenced, changes had occurred leading to a comprehensive review of the Plan.
The introduction of new legislation (Railways and Transport Safety Act 2003) now places a
duty on a highway authority to ensure, so far as is reasonably practicable, that safe passage
along a highway is not endangered by snow or ice. This legislation came into force on 31 st
October 2003.
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