Camilty Wind Farm - Partnerships for Renewables

Camilty Wind Farm
• Turn northbound onto the A801;
• Turn westbound onto the A706 to Whitburn and continue south through Forth;
• Turn eastbound onto the A721 and A70;
• Turn northbound along the A70 at Carnwath; and
• Turn left into the site access.
7.3.16 The physical geometric ability of the network to accommodate the loads are set out in a
Swept Path Analysis (RPS Report Ref JNY7370-02) which accompanies this application.
Baseline Traffic Counts
7.3.17 Traffic flow data has been obtained from South Lanarkshire Council, West Lothian Council
and the City of Edinburgh Council for key locations along the A70. The weekday 12 hour and
24 hour traffic flows are set out in Table 7.4.
Table 7.4 Observed Weekday Traffic Flows
Link Location Year of
Count
24 Hour Traffic
Flow
12 Hour Traffic
Flow
Total HGV Total HGV
1 A70 Crosswood Reservoir (Between
B7008 and Carnwath)
2 A70 Wester Causewayend (Harperigg
Reservoir)
2009 2,042 62 1,723 55
2005 1,996 60 1,684 53
3 A70 Lanark Road (Currie / Balerno) 2010 16,020 485 12,878 411
7.3.18 The construction of the proposed wind farm is likely to take place for six months with peak
activities and traffic movements during month four. The commencement of construction is
not yet known and hence the construction year is unknown at this stage. Given that the
environmental assessment of road traffic is based upon the change in traffic flows relative to
a baseline position, a greater effect would occur from a low baseline traffic flow in
comparison to a higher baseline traffic flow. The application of traffic growth rates to
estimate future year traffic flows generally results in an increase in background traffic flow
year on year. Therefore, if the current year of 2013 is used to represent the construction
year, then this would cover all possible years of construction whilst representing a worst case
assessment. On this basis, whilst construction is predicted to commence in 2016, a
construction year of 2013 has been assumed and it is assumed that the peak construction
month (month four) would also be during 2013.
7.3.19 It follows that, to enable the likely effects during construction to be assessed, traffic growth
factors have been used to predict the growth in the base flows to this peak construction year
of 2013.
7.3.20 The Trip End Model Presentation Programme (TEMPRO) has been used with the observed
traffic flow data to predict the likely level of traffic which will be using the road network in
2013.
7.3.21 TEMPRO is produced by the Department for Transport (DfT) and uses a wide range of data
so that accurate localised traffic growth projections can be predicted. As such, the use of
March 2013 7-8 ES Chapter 7
Traffic and Transport
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