Bradshaw:Glossary
For three-letter station codes see CRS codes.
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.
4LM: Four Lines Modernisation programme
ARS: Automatic Route Setting
ASC: Area Signalling Centre
ATC: Automatic Train Control
ATO: Automatic Train Operation
ATP: Automatic Train Protection
AWC: Avanti West Coast
AWS: Automatic Warning System
BR: British Rail
BTP: British Transport Police
CAPE: Cancelled At Point of Entry
CBTC: Communications Based Train Control
CIS: Customer Information System
CR: Chiltern Railways
CS: Caledonian Sleeper
CSA: Customer Service Assistant
CSDE: Correct Side Door Enable
CSR: Cab Secure Radio
DCO: Driver Controlled Operation
DCV: Door Closed Visual
DDA: Disability Discrimination Act
DRA: Driver Reminder Appliance
DTG-R: Distance to Go Radio
DOO: Driver Only Operation
DVA: Digital Voice Announcer
ECML: East Coast Main Line
EMR: East Midlands Railway
EMT: East Midnland Trains
ERU: Emergency Response Unit
ESDC: Emergency Saloon Door Control
ESR: Emergency Speed Restriction
ETCS: European Train Control System
ERTMS: European Rail Traffic Managment System
FGW: First Great Western
FOC: Freight Operating Company
GA: Greater Anglia
GoA: Grade of Automation
GSM-R: Global System for Mobile Communications – Railway
GTR: Govia Thameslink Railway
GWR: Great Western Railway
HS1: High Speed 1
HS2: High Speed 2
HST: High Speed Train
IECC: Intergrated Electronic Control Centre
IET: Intercity Express Train
IMR: Interlocking Machine Room
IoW: Isle of Wight
JLE: Jubilee Line Extension
KYT: Know Your Train
LNER: London North Eastern Railway
LNR: London Northwestern Railway
LOS: Limit of Shunt
LOM: Limit of Movement
LOROL: London Overground Rail Opration Ltd.
LPTB: London Passenger Transport Board
LRT: London Regional Transport
LT: London Transport
LTP: Long Term Plan
LUL: London Underground Limited
MOM: Mobile Operations Manager
NLE: Northern Line Extension
NMT: New Messurement Train
NR: Network Rail
NR: Northern Rail
NRN: National Radio Network
NSE: Network South East
OOL: On Our Lines (This project)
OPO: One Person Operation
PEA: Passenger Emergency Alarm
PED: Platform Edge Doors
PIS: Passenger Information System
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
REC: Railway Emergency Call
RGI: Rail Gap Indicator
ROC (SimSig:Sessions): Railway Operating Centre
ROC (Network Rail): Rail Operating Centre
RSF: Right Side Failure
RTT: Real Time Trains
RVAR: Rail Vehicle Accessibility Regulation
SATS: Staff Assisted Train Services
ScR: ScotRail
SE: Southeastern
SotD: Signal of the Day
SPAD: Signal Passed At Danger
SPAR: Signal Passed At Red
SPAS: Signal Passed At Stop
SR: ScotRail
SSR: Sub-Surface Railway
STP: Short Term Plan
SWR: South Western Railway
SWT: South West Trains
TBC: Traction Brake Controller
TBTC: Transmission Based Train Control
TC: Track Circuit
TCF: Track Circuit Failure
TD: Train Describer
TD (London Underground): Train Description
TfGM: Transport for Greater Manchester
TfL: Transport for London
TfW: Transport for Wales
TMS: Train Management System
TOC: Train Operating Company
T/Op: Train Operator
TOPS: Total Operations Processing System
TPE: TransPennine Express
TPS: Train Planniong System
TPWS: Train Protection and Warning System
TS: Tube Stock
TSC: Transport Strategy Centre
TSF: Track Section Failure
TSI: Technical Specifications for Interoperability
TSR: Temporary Speed Restriction
TYT: Track Your Train
UTO: Unattended Train Operation
VAR: Varied Timetable
VETC: Virgin Trains East Coast
VSTP: Very Short Term Plan
VT: Virgin Trains
WCML: West Coast Main Line
WSF: Wrong Side Failure
WSL: Wrong Signal Lowered
WDM: Wrong Direction Move
WMR: West Midlands Railway
WMT: West Midland Trains
WTT: Working Timetable
XC: Cross Country
XR: Crossrail