R A I LT R AC K - The Railways Archive

abbreviations and glossary
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A
B
C
D
Appendix 5
Abbreviations and glossary
AC Alternating current
accommodation level crossings Points at which private roads, farm trucks, public footpaths and bridle paths cross a railway
line. There is usually no automatic warning of the approach of a train
AHB Level crossing protected by automatic half-bar rier
air rights development The right to develop buildings above existing building height on land owned by Railtrack
AMP Asset Maintenance Plan
ARL Above rail level
ATCO Association of Transport Co-ordination Officers
ATP Automatic Train Protection
AWG Adhesion Working Group
AWS Automatic Warning System
axle-counters Part of signalling system which detects the position of a train on a railway line
BAA British Airports Authority. Owner and operator of a number of airports in Great Britain and
elsewhere
balise Trackside TCS transmitter
bay line A short, dead-end platform
BML Brighton Main Line
bottleneck A location on the network where the number of train movements is close to, or projected
BRB British Railways Board
CCTV Closed-circuit television
to exceed, the capacity of that location (same as pinchpoint)
CD/RA indicators A special signal to a train driver that a train is ready to depart from a station
Centro PTA West Midlands Passenger Transport Authority
CERT City of Edinburgh Rapid Transport
CET Controlled emission toilets on a train. The train’s toilet empties into a tank which is emptied
at a servicing depot
chord line Short section of line connecting two other lines, forming a triangle
CIS Customer-information systems
clockface timetable A timetable where trains run at regular intervals (eg every 10 minutes)
Control Period The Period (normally five years) for which the Rail Regulator fixes our access income from
franchised passenger train operators
CRR Corporate Responsibility Review
CRR Customer-reasonable requirements
CRS Corporate Responsibility Statement
CSC Connex South Central
CSE Connex South Eastern
CSR Cab secure radio
CTR1 Channel Tunnel Route 1 (via Tonbridge)
CTR2 Channel Tunnel Route 2 (via Maidstone)
CTR3 Channel Tunnel Route 3 (via Redhill)
CTRL Channel Tunnel Rail Link
customers Those who use Railtrack equipment (compare passengers)
DART Digital Advanced Radio for Trains
DC Direct current
DETR Department of Environment, Transport and the Regions
disaggregation Splitting Railtrack’s plans and expenditure into seven Zonal and 45
Strategic Route plans
DLR Docklands Light Railway