Railway Signalling Glossary

A complete list of vocabulary flashcards for railway signalling acronyms and terminology derived from the lecture notes.

AB

Absolute Block

AHBC-X

Automatic Half Barrier Crossing - Wrong Direction Movements

AiP

Approval In Principle

AWS

Automatic Warning System (magnet)

CDM

Construction, Design and Management

CEM

Contractor's Engineering Manager

CSHH

Control of Substances Hazardous to Health

CRE

Contractor's Responsible Engineer

DC

Direct Current

DU

Delivery Unit

E&P;

Electrification and Plant

EIS

Entry Into Service

FAdC

Frauscher Advanced Counter

FOC

Freight Operating Company

FSP

Functional Supply Point

FTN

Faster-than-Nyquist (telecoms)

HST

High Speed Train (Class 43)

IBCL

In-Bearer Clamp Lock (points)

ILS

Integrated Lightweight Signal

IRJ

Insulated Rail Joint

Jcn

Junction

LC

Level Crossing

LOC

Location Case

MCB

Manually Controlled Barrier

NRG

National Records Group

NX

Entry-Exit (Panel)

OHL

Overhead (Electrified) Line

OMSL

Overlay Miniature Stop Light

OPEX

Operational Expenditure

PACE

Project Acceleration in a Controlled Environment

PAp

Preliminary Approval

POE

Point Operating Equipment

POIS

Project Operations Interface Specialist

PSP

Principal Supply Point

RAM

Route Asset Manager

RCM

Remote Condition Monitoring

REB

Relocatable Equipment Building

RSSB

Rail Safety and Standards Board

S.B.

Signal Box

S.C.

Signalling Centre

SORAT

Signal Overrun Risk Assessment Tool

SPT

Signal Post Telephone

SS.C.

Signal Sighting Committee

TCB

Track Circuit Block

TOC

Train Operating Company

TPWS

Train Protection and Warning System

Re-locked

Amendments made to signalling interlocking

UWC

User Worked Crossing

UTX

Under Track Crossing (cables)

VDU

Visual Display Unit

WSTR

Warning Straight To Red

WTS

Westrace Trackside System