University of Birmingham and Network Rail List of Acronyms and Abbreviations for Railways (LAAR) Mark 24, February 2011 This list was originally produced by the Railway Systems Group at the University of Sheffield, in cooperation with staff from Railtrack, Network Rail, Bechtel and HMRI. It was expanded with the support of many other railwy industry organisations and individuals. Members of staff at the University of Birmingham and the team of The Railway Consultancy update the Rail Lexicon on a regular basis. Obsolete terminology is shown in grey, where the status is known. Comments are welcomed by: [email protected] and [email protected] . In general, the UK term “railway” is used rather than the US term “railroad”. 3G – 3rd Generation Mobile Phone ATR – (1) Automatic Train Reporting 4GL – Fourth Generation Language ATR – (2) Automatic Train Regulation ATS – (1) Automatic Train Stop A– A – ATS – (2) Automatic Train Supervision ATS – (3) Applicable Timetable Service AAR – Association of American Railroads ATSS – Automatic Train Supervision System AB – Absolute Block (system of working) ATT – Active Tilting Train ABCL – Automatic Barrier Crossing Locally ATTA – Automatic Track Top and Alignment monitored ATWS – Automatic Track Warning System ABCR – Automatic Barrier Crossing Remotely monitored AVACS – Aire VAlley Control System ADIF – Spanish Infrastructure Manager AVB – Automatic Vacuum Brake AHB – Automatic half barrier crossing AVI – Automatic Vehicle Identification AHQ – (British Transport Police) Area Headquarters AWB – Advance Warning Board ALARP – As low as reasonably practicable AWE – Advance Warning Estimates ALCRAM – All Level Crossing Risk Assessment AWG – Adhesion Working Group Model AWS – (1) Automatic Warning System AM – Amplitude Modulation AWS – (2) Auxiliary Wayside System AOA – Angel Of Attack AWS – (3) Audible Warning System AOCL – Automatic Open Crossing Locally monitored B– B – AOCR – Automatic Open Crossing Remotely monitored b – braking rate (abbreviation) ARS – Automatic Route Setting B/C – Benefit to Cost Ratio ASLEF – Associated Society of Locomotive BAA – British Airports Authority Engineers and Firemen. BABT – British Approval Board for Telecommuni- ASPER – ASset PERformance database cations AT – (1) Auto Transformer (supply) BACS – Banking Automated Credit System AT – (2) Auto Transformer Baneverket – Swedish infrastructure manager ATA – Automatic Track Alignment BATS – Business Analysis of Train Services ATC – Automatic Train Control BBEST – Balfour Beatty Embedded Slab Track BBRM – Balfour Beatty Rail Maintenance Ltd. ATCO – Association of Transport Co-ordinating Offices (formerly SIE) ATM – Amended Timetable Manager BBRPL – Balfour Beatty Rail Projects Ltd. ATO – Automatic Train Operation BBRR – Balfour Beatty Rail Renewals ATOC – Association of Train Operating Companies BCA – Business Critical Application (IT term) ATP – Automatic Train Protection BCC – Banking Control Account ATPM – Automatic Train Protection Manual BCK – Brake Composite Corridor Page 1 LAAR Mark 24, February 2011 BCRRE – Birmingham Centre for Railway Research BSPG – Business Systems Policy Group: an RTIS and Education authorising body BCU – Brake Control Unit BST – (1) Basic Signalling Technology BCWS – Budgeted Cost of Work Scheduled BST – (2) British Summer Time BDM – (1) Business Development Manager BT – Booster Transformer BDM – (2) Business Development Manual BTA – British Transport Advertising BFK – Brake First Corridor BTOG – British Transport Officers’ Guild BFO – Brake First Open BTP – British Transport Police BH–RAIL – Bull Head Rail Section BTS - Base Transceiver Station BHX – Bank Holiday eXcepted BZP – Bright Zinc Plating BIFS – Billing Infrastructure Freight System BMB – Block marker board C– C – BMIS – Business Management Information System BMS – Basic Mechanical Signalling C&W – Carriage and Wagon C/E – Country End BNC – British National Connector BOP – Booking On Point C2C – Commercial Name for London Tilbury and Southend lines BP – (1) Brake Pipe CA – (1) CAble, BP – (2) British Petroleum CA – (2) Commercial Assistant, BP – (3) Business Plan CA – (3) Cash Accounts BPA – (1) Business Planning Accountant CAD – Computer Aided Design BPA – (2) Business Planning Analysis CAG – (1) Contract Approval Group BPM – Business Process Manual CAG – (2) Crossrail Project Compliance & BPR – Business Policy Review group: an RTIS body Assurance Group BR – (1) British Railways CAHA – Claims Allocation and Handling Agreement BR – (2) British Rail (see also RIDRR) BRASS – British Railways Additional Superannua- CAMPS – Computer Assisted Maintenance Planning tion Scheme System BRB – British Railways Board CAMS – Cost Allocation Management System BRBS – British Railways Business Systems (former CAPE – (1) Train Cancelled, derived from former BR equivalent of RTIS) Telegraph Code BRENDA – BRidge ENgineer Data, computer system CAPE – (2) Computer Aided Project Engineering BRG – Business Review Group CAPEX – CAPital EXpenditure – funds spent on BRI – British Rail International fixed assets BRIMS – British Rail Incident Monitoring Syste CAPM – Capital Asset Pricing Model BRIS – British Rail Infrastructure Services CAPP – Confirmed Annual Possession Plan BRP – Budget Reporting Pack CAPS – Colchester Area Power Supplies BRR – British Rail Research CAR – Corrective Action Request BRS – Business Route Section CARINO – TOPS (Total Operations Processing BRSA – British Rail Staff Association System) wagon number BRT – British Rail Telecommunications , now known CARKND – TOPS (Total Operations Processing as RACAL System) wagon type BRV - Brake Release Valve (LUL) CAT – Cable Avoiding Tool BS – British Standard CATP – Continous ATP BS spec – British Standards specification CATE – Computer Assisted Train Enquiries BS&TE – Business Signal & Telecommunications CB – (1) Central Battery Engineer CB – (2) Circuit Breaker BSC – Base Station Controller CB – (3) Car body, carriage body BSK – Brake Second Corridor CBA – Cost Benefit Analysis BSN – Bridge Strike Nominee (see Bridge Bash / CBCT – Communications Based Train Control Strike) CBI – (1) Confederation of British Industry BSO – Brake Second Open CBI – (2) Computer Based Interlocking BSP – Bulk Supply Point CBS – Contract Breakdown Structure CBTC – Communication Based Train Control Page 2 of 22 LAAR Mark 24, February 2011 CCA – Current Cost Accounting CITDS – Construction Industry Tax Deduction CCF – Control Centre of the Future Scheme CCI – Confirmation of Client's Instruction CITR – Centre for Independent Transport Research CCM – Company Control Manager (EWS) (London) CCS – Contract Conditions – Safety CLASS 0 TRAINS – Light locomotives CCSC – Contractor Core Safety Case CLASS 1 TRAINS – Express passenger trains, mail trains and some emergency trains CCTV – Closed Circuit TeleVision CLASS 2 TRAINS – Stopping passenger trains CCU – Core Control Unit CLASS 3 TRAINS – Express parcel trains CD – (1) Closed Doors platform indicator CLASS 4 TRAINS – Express freight trains – 75mph CD – (2) Circuit Diagramme maximum speed CD ROM – Compact Disc Read Only Memory CLASS 5 TRAINS – Empty coaching stock trains CDL – Central Door Locking CLASS 6 TRAINS – Express freight trains – 60mph CDM – (1) The Construction (Design and maximum speed Management) Regulations 1994 CLASS 7 TRAINS – Freight trains with 45mph CDM – (2) Control Duty Manager maximum speed CDMA – Collision Detection Multiple Access CLASS 8 TRAINS – Freight trains with 35mph CDNP – Cheques Drawn Not Presented maximum speed and engineers’ trains CE – Contract Engineer CLASS 9 TRAINS – Eurostar trains CEDAC – Civil Engineering Design And CM – (1) Contracts Manager Construction CM – (2) Coded Manual CEDG – Civil Engineering Design Group CMD – Central Materials Depot CEGB – Central Electrictricity Generating Board CMS – Competence Management System CENELEC – European Committee for Electro- COA – Chart Of Accounts technical Standardisation CoCoSig – Command, Control and Signalling (TSI) CENTRO – Marketing name of West Midlands CoCP – Code of Construction Practice Passenger Transport Executive COCS – Computerised Operations Control System CER – (1) Change En Route COI – Confirmation Of verbal Instruction CER – (2) Community of European Railways COMET – Community Metro CER – (3) Communications Equipment Room COMPASS – COMbined Performance And Safety CERT – City of Edinburgh Rapid Transport System CESM – Civil Engineering Safety Manual CoPA – Control of Pollution Act 1974 CET – Controlled Emission Toilet COS – Central Operating Section CGT – Capital Gains Tax COS – Client Operating System CH – CHiltern Railway Company COSHH – Control Of Substances Hazardous to CHALET – Casualties, Hazards, Access, Location, Health 1988 Emergency services and Time COSS – Controller of Site Safety CHAPS – Clearing House Accounts Payable System COT – Condition Of Track. CHIP – Chemicals Hazard Information and COTS – Commercial Off The Shelf equipment Packaging regulations COWD – Cost Of Work to Date CI – Contract Instruction CPC – Circuit Protective Conductor CIÉ – Corás Iompair Éireann, holding company of Iarnród Éireann (Irish Rail) CPD – Continuing Professional Development CILT – Chartered Institute of Logistics and Transport CPD –Capital Programmes Directorate CIM – rules for international carriage of goods (Con- CPFR – Crossrail Programme Functional vention Internationale concernant le transport Requirements des marchandises par chemins de fer) CPM – Codes per Minute CIMA – Chartered Institute of Management CPMG – Company Performance Management Group Accountants