Bradshaw:Glossary

From Bradshaw, the companion guide to On Our Lines
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For three-letter station codes, see CRS codes.
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Not everyone knows all the hundreds of rail-specific acronyms and initialisms, so if any pop up in conversation on the Discord server, add them and their meaning below so others can look them up.

Please keep these in alphabetical order so it is easy to find a specific term.


0-9

  • 4LM: Four Lines Modernisation programme
  • 4 Foot The space between the two running rails on a section of track
  • 6 Foot The area between a pair of running lines
  • 10 Foot The area between two pairs of running lines

A

File:London Overground Class 710.jpg
London Overground Class 710
  • ABCL: Automatic Barrier Crossing, Locally Monitored
  • ACOA: Adverse Change Of Aspect
  • AHB: Automatic Half-Barrier Crossing
  • AHBC: Automatic Half-Barrier Crossing
  • AOCL: Automatic Open Crossing, Locally Monitored
  • ARL: Arriva Rail London
  • ARS: Automatic Route Setting
  • ASC: Area Signalling Centre
  • ATC: Automatic Train Control
  • ATO: Automatic Train Operation
  • ATOC: Association of Train Operating Companies
  • ATP: Automatic Train Protection
  • ATW: Arriva Trains Wales
  • AWC: Avanti West Coast
  • AWS: Automatic Warning System

B

The British Rail 'Arrows of Indecision'.

C

  • C+H: Circle and Hammersmith & City lines
  • CAPE: Cancelled At Point of Entry
  • CAWS: Continuous Automatic Warning System
  • CBTC: Communications Based Train Control
  • Cess: The area along either side of a railway line which is kept at a lower level than the sleeper bottom, in order to provide drainage.
Hammersmith station, which is the terminus of the Circle and Hammersmith & City Lines
  • CIS: Customer Information System
  • CM: Coded Manual
  • CoT: Close of Traffic
  • CR: Chiltern Railways
  • CRS: Computer Reservation System
  • CS: Caledonian Sleeper
  • CSA: Customer Service Assistant
  • CSDE: Correct Side Door Enable
  • CSL2: Customer Service Level 2
  • CSR: Cab Secure Radio

D

Tower Gateway station of the Docklands Light Railway in East London.
  • DCO: Driver Controlled Operation
  • DCV: Door Closed Visual
  • DDA: Disability Discrimination Act
  • DLR: Docklands Light Railway
  • DOO: Driver Only Operation
  • DRA: Driver Reminder Appliance
  • DSD: Driver's Safety Device
  • DTG-R: Distance to Go Radio
  • DVA: Digital Voice Announcer

E

Eurostar class 374 at Amsterdam Centraal

F

G

A Greater Anglia class 745 FLIRT intercity train.

H

File:Hull Trains Class 802.jpg
A Hull Trains Class 802 at St Pancras

I

Liverpool Street Interlocking Machine Room
  • IBJ: Insulating Block Joint
  • IC: Intercity
  • IECC: Integrated Electronic Control Centre
  • IEP: Intercity Express Programme
  • IET: Intercity Express Train
  • IMR: Interlocking Machine Room
  • IoW: Isle of Wight

J

Canada Water station on the Jubilee Line Extension including Platform Edge Doors
  • JLE: Jubilee Line Extension

K

  • KYT: Know Your Train

L

M

Metropolitan Railway electric locomotive Sarah Siddons

N

New Measurement Train

O

  • OA: Open Access
  • OCS: Overhead Contact System
  • OLE: Overhead Line Equipment
  • ORR: Office of Rail and Road
  • OOL: On Our Lines (This project)
  • OPO: One Person Operation

P

British Rail PEP unit
  • PDL: Portsmouth Direct Line
  • PEA: Passenger Emergency Alarm
  • PED: Platform Edge Doors
  • PEP: Prototype Electro Pneumatic Train
  • PIS: Passenger Information System
  • PLPR (1-4): Plain Line Pattern Recognition
  • PM: Protected Manual
  • PoSA: Proceed-on-Sight Authority
  • PRM: Persons with Reduced Mobility
  • PSA: Passenger Service Agent
  • PSB: Power Signal Box
  • PSD: Platform Screen Doors
  • PSR: Permanent Speed Restriction
  • PTI: Platform Train Interface
  • PTS: Personal Track Safety

Q

  • Q Code train: A train that runs as required

R

Rail Head Treatment Train
  • RAIB Rail Accident Investigation Branch
  • RAT: Rail Adhesion Train
  • RDG: Rail Delivery Group
  • REC: Railway Emergency Call
  • RGI: Rail Gap Indicator
  • RHTT: Rail Head Treatment Train
  • RM: Restricted Manual
  • ROC (Network Rail): Rail Operating Centre
  • ROC (SimSig:Sessions): Railway Operating Centre
  • RSF: Right Side Failure
  • RSSB: Rail Safety and Standards Board
  • RTT: Real Time Trains
  • RVAR: Rail Vehicle Accessibility Regulations

S

A ScotRail class 320
  • SATS: Staff Assisted Train Services
  • SCAT: Speed Control After Tripping
  • SCC: Service Control Centre
  • SCD: Short Ciruiting Device
  • SCL1: Service Controller Level 1
  • SCL2: Service Controller Level 2
  • ScR: ScotRail
  • SE: Southeastern
  • SMA (0.5-14): Signal Migration Area
  • SMD: Stratford Market Depot
  • SN: Southern Rail
  • SoT: Start of Traffic
  • SotD: Signal of the Day
  • SPAD: Signal Passed At Danger
  • SPAR: Signal Passed At Red
  • SPAS: Signal Passed At Stop
  • SPT: Signal Post Telephone
  • SR: ScotRail
  • SRA: Strategic Rail Authority
  • SRAWS: Signal Repeating Automatic Warning System
  • SSO: Special Stop Order
Moorgate Station on London Underground's Sub-Surface Railway

T

Thameslink's Trainbow 700155.
  • TAS: Traction Auxillary Set
  • TAT: Traction Auxillary Trip
  • T/Op: Train Operator
  • TBC: Traction Brake Controller
  • TBTC: Transmission Based Train Control
  • TC: Track Circuit
  • TCD: Traffic Controllers Diagrams
  • TCF: Track Circuit Failure
  • TCP: Trip Cock Protection
  • TD (London Underground): Train Description
  • TD (Network Rail): Train Describer
  • TfGM: Transport for Greater Manchester
  • TfL: Transport for London
  • TfW: Transport for Wales
  • TIPLOC: Timing Point Location
  • TL: Thameslink
  • TMS: Train Management System
  • TOC: Train Operating Company
  • TOPS: Total Operations Processing System
  • TPE: TransPennine Express
  • TPS: Train Planning System
  • TPWS: Train Protection and Warning System
  • TRC: Track Recording Car
  • TRT: Track Recording Train
London Underground 1938 Tube Stock at Amersham on a rail tour
  • TRTS: Train Ready To Start
  • TRU: Track Recording Unit
  • TRV: Track Recording Vehicle
  • TS: Tube Stock
  • TSC: Transport Strategy Centre
  • TSF: Track Section Failure
  • TSI: Technical Specifications for Interoperability
  • TSR: Temporary Speed Restriction
  • TSW: Train Sim World
  • TTN: Timetable Notice
  • TYT: Track Your Train

U

  • UERL: Underground Electric Railway Company of London
  • UTO: Unattended Train Operation
  • UTU: Ultrasonic Test Unit
  • UWC: User Worked Crossing

V

W

West Midlands Railway's class 139 Parry People Mover on the Stourbridge Town branch line.

X

  • XC: Cross Country
  • XR: Crossrail

Y

Z

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