Train Safety Systems Synopsis This document defines the requirements for train safety systems to enable safe operation of trains on Railtrack controlled infrastructure. Signatures removed from electronic version Submitted by David Thomas Standards Project Manager Authorised by Brian Alston Controller, s This document is the property of Railway Safety. It shall not be reproduced in whole or in part without the written permission of the Controller, s, Railway Safety. Published by: Railway Safety Evergreen House 160 Euston Road London NW1 2DX Copyright 2001 Railway Safety
This page has been left blank intentionally
Page 1 of 8 Contents Section Description Page Part A A1 Issue record 2 A2 Implementation of this document 2 A3 Scope of s 2 A4 Responsibilities 2 A5 Health and safety responsibilities 3 A6 Technical content 3 A7 Supply 3 Part B B1 Purpose 4 B2 Application of this document 4 B3 Definitions 5 B4 Required train safety systems 6 B5 Isolation of train safety systems 7 References 8 RAILWAY SAFETY 1
Page 2 of 8 A1 Issue record Part A Issue Date Comments One January 1995 Original Document Two December 2001 Replaces issue one as a result of review This document will be updated when necessary by distribution of a complete replacement. A2 Implementation of this document The publication date of this document is 1 December 2001. This document comes into force on 2 February 2002. The dates by which compliance with the requirements of this document is to be achieved are set out in Part B2. Where those dates are later than the date on which this document comes into force, this is to give Railway Group members additional time to plan and commence implementation so as to achieve full compliance by the dates set out in Part B2. This document supersedes the following s, either in whole or in part as indicated: Railway Group Standard Issue No. Title RGS sections superseded by this document Date(s) as of which sections are superseded 1 Train Safety Systems All sections 2 Feb 2002 issue one will be withdrawn on 2 February 2002. A3 Scope of Railway Group Standards A4 Responsibilities The overall scope of s is set out in Appendix A of GA/RT6001. The specific scope of this document is set out in Part B2. s are mandatory on all members of the Railway Group* and apply to all relevant activities that fall into the scope of each individual s Railway Safety Case. If any of those activities are performed by a contractor, the contractor s obligation in respect of s is determined by the terms of the contract between the respective parties. Where a contractor is a duty holder of a Railway Safety Case then s apply directly to the activities described in the Safety Case. * The Railway Group comprises Railtrack PLC, Railway Safety, and the train and station operators who hold railway safety cases for operation on or related to infrastructure controlled by Railtrack PLC. Railtrack PLC is known as Railtrack. 2 RAILWAY SAFETY
Page 3 of 8 A5 Health and safety responsibilities A6 Technical content A7 Supply In issuing this document, Railway Safety makes no warranties, express or implied, that compliance with all or any documents published by Railway Safety is sufficient on its own to ensure safe systems of work or operation. Each user is reminded of its own responsibilities to ensure health and safety at work and its individual duties under health and safety legislation. The technical content of this document has been approved by: Haydn Peers, Acting Principal Vehicles Engineer, Railway Safety Enquiries should be directed to Railway Safety Tel: 020 7904 7518 Controlled and uncontrolled copies of this document may be obtained from the Industry Safety Liaison Dept, Railway Safety, Evergreen House, 160 Euston Road, London NW1 2DX. RAILWAY SAFETY 3
Page 4 of 8 B1 Purpose B2 Application of this document Part B To define requirements for train safety systems to enable safe operation of trains on Railtrack controlled infrastructure. B2.1 To whom the requirements apply This document contains requirements that are applicable to duty holders of the Train operator category of Railway Safety Case. B2.2 Compliance requirements The requirements of this document shall be complied with no later than 2 February 2002. Specifically, the contents of this document apply to all trains intended to be operated on Railtrack controlled infrastructure, including on-track machines and road-rail recovery vehicles. All of the requirements of this document are within the scope of Vehicle Acceptance Body approval. Except as stated below, action to bring existing trains into compliance with the requirements of this document is not required. Where it is known, or becomes known, that an existing train safety system does not comply with the requirements of this document, action to bring it into compliance is required as follows: a) When a train safety system is modified. b) When a train safety system is upgraded as a whole. After the compliance date, or after the date by which compliance is achieved (if earlier), Railway Group members shall not deviate from the requirements set out in this document. Where it is considered not practicable, or not reasonably practicable, to comply with the requirements set out in this document; authorisation not to comply shall be sought in accordance with GA/RT6001, GA/RT6004 or GA/RT6006. B2.3 Exclusions from the application of this document The contents of this document do not apply to road-rail vehicles (other than roadrail recovery vehicles) or rail-mounted maintenance machines. B2.4 Related requirements in other documents This document does not provide a comprehensive list of all train safety systems as requirements are contained in other s. At the time of publication of this document the following s contain requirements for train safety systems on rail vehicles where the use of that particular train safety system is mandated. GC/TP0459 GE/RT8012 GE/RT8014 GE/RT8018 Fitting of Track Circuit Actuators to On-Track Machines (to be replaced by GM/RT2458 Vehicle Requirements for the Reliable Operation of Track Circuits) Controlling the Speed of Tilting Trains Through curves Hot Axle Box Bearing Detection Mechanical Trainstop Systems 4 RAILWAY SAFETY
Page 5 of 8 GE/RT8019 GE/RT8026 GE/RT8030 GE/RT8035 GK/RT0036 GK/RT0054 GK/RT0091 GM/RT2044 GM/RT2045 GM/RT2458 GM/RT2120 GM/RT2161 GM/RT2177 GM/RT2180 GM/RT2461 GM/RT2458 GM/RT2472 GO/OTS300 GO/OTS303 GO/RT3272 GO/RT3410 GO/RT3437 Tilting Trains: Controlling Tilt Systems to Maintain Clearances Safety Requirements for Cab Signalling Systems Train Protection and Warning System (TPWS) Automatic Warning System (AWS) Transition Between Lineside Signalling Systems and Other Systems of Train Control Radio Electronic Token Block Drivers Reminder Appliance Braking System and Performance for Multiple Units Braking Principles for Rail Vehicles Vehicle Requirements for the Reliable Operation of Track Circuits (currently in draft) Requirements for the Control Arising from Fires on Railway Vehicles Requirements for Driving Cabs of Railway Vehicles Emergency and Safety Equipment and Signs on Rail Vehicles Visibility and Audibility Requirements for Trains Sanding Equipment Fitted to Multiple Units and On-Track Machines Vehicle Requirements for the Reliable Operation of Track Circuits (currently in draft) Data Recorders on Trains Design Requirements (currently in draft) Power-Operated Exterior Doors on Passenger Rail Vehicles Secondary Door Locking Operational Requirements Data recorders on Trains Train Radio Requirements Defective On-Train Equipment Train safety systems are also the subject of legislation and train operators are reminded of their obligations contained within Railway Safety (Miscellaneous Provisions) Regulations 1997. B3 Definitions On-track machine A rail vehicle that conforms to the requirements of GM/RT2400. Rail-mounted maintenance machine A rail vehicle that conforms to the requirements of GM/RT2402. RAILWAY SAFETY 5
Page 6 of 8 Resetting The returning to operational use of a train safety system after it has been isolated. Road-rail vehicle A rail vehicle that conforms to the requirements of GM/RT1300. Road-rail recovery vehicle A road-rail vehicle, specifically designed and constructed to attend accidents and incidents involving rail vehicles obstructing the line, which is permitted to travel outside possessions in accordance with section H (v) of the Rule Book. Train crew A driver or guard as defined in GO/RT3000, or people who may be required to undertake some of the duties of a driver or guard. Train safety system A safety system that performs one or more of the following functions: a) Supports the correct interdependency between the train crew and the train controls. b) Supports the correct interdependency between the train crew and other infrastructure based safety systems (including signals and signs to be observed). c) Supports the correct interdependency between the train controls and other infrastructure based safety systems. d) Supports the correct interfacing between the train and any people on or near the track. e) Permits communications between train crew and passengers in an emergency. f) Permits communications between train crew members and between train and track based systems. B4 Required train safety systems B4.1 General To enable safe interworking on the infrastructure trains are required to be fitted with safety systems that provide information to the train crew or react when a potentially unsafe event occurs. In addition, train safety systems are required to interface with track based systems where fitted. This document details specific train safety systems (in B4.2) and identifies those other Railway Group Standards, listed in section B2.3, which contain further requirements for train safety systems. B4.2 Interfaces between the train crew and the train controls Trains shall have safety systems to perform the following functions: a) Indicate the speed of the train to the driver. b) Monitor the alertness of the driver and, if driver activity ceases for a sustained duration not longer than two minutes, alert the driver via an audible warning. Should the driver fail to respond to the audible warning the train shall be brought to a stop automatically with an emergency brake application. c) Ensure that the train is stopped automatically with an emergency brake application if the driver becomes incapacitated. This may be achieved by sensing positive driver contact on a control device. 6 RAILWAY SAFETY
Page 7 of 8 d) Enable the train guard to apply the brake at a location remote from the position from which the train is being driven. B4.3 Communication systems on passenger trains Passenger trains shall have communication systems to: a) enable train crew to alert passengers within a train in an emergency b) enable separate, discreet communication between sections of the train designated for use by train crew members. Regulation 4 of Statutory Instrument 553, The Railway Safety (Miscellaneous Provisions) Regulations 1997 requires train operators to have within passenger trains a means whereby passengers can communicate to the driver that there is an emergency and, if necessary, stop the train. B5 Isolation of train safety systems B5.1 Prevention of isolation when train is moving It shall not be possible for the driver to disable the safety systems defined in B4.2 and B4.3 through isolation when the train is moving. B5.2 Reminders indicating if isolation has been performed Where a method of isolating train safety systems is provided, a reminder shall be provided to indicate that isolation has been performed. The reminder shall be located in the driving cab and positioned so that it is visible to the driver. As far as practicable, the reminder shall be visible and shall continue to be visible in the event of loss or failure of any of the power supply systems to or on the train. It is permissible to provide a general isolation indicator in the cab backed up by detailed indicators that may be remote from the cab. B5.3 Resetting of train safety systems once isolated Where practicable, train safety systems shall be designed such that they cannot be reset by train crew, unless resetting is required as part of routine train duties, or the systems are able to self-repair. Where this is not practicable, the design shall ensure that resetting of the train safety system is visibly recorded (for example, by using a break seal arrangement). RAILWAY SAFETY 7
Page 8 of 8 GA/RT6001 GA/RT6004 GA/RT6006 GC/TP0459 GE/RT8012 GE/RT8014 GE/RT8018 GE/RT8019 GE/RT8026 GE/RT8030 GE/RT8035 GK/RT0036 GK/RT0054 GK/RT0091 GM/RT1300 GM/RT2400 GM/RT2044 GM/RT2045 GM/RT2120 GM/RT2161 GM/RT2177 GM/RT2180 GM/RT2402 GM/RT2458 GM/RT2461 GM/RT2472 GO/RT3000 GO/RT3272 GO/RT3410 GO/RT3437 GO/OTS300 GO/OTS303 References s and other Railway Group Documents s Change Procedures Temporary Non-Compliance with s Derogations from s Fitting of Track Circuit Actuators to On-Track Machines Controlling the Speed of Tilting Trains Through curves Hot Axle Box Bearing Detection Mechanical Trainstop Systems Tilting Trains: Controlling Tilt Systems to Maintain Clearances Safety Requirements for Cab Signalling Systems Train Protection and Warning System (TPWS) Automatic Warning System (AWS) Transition Between Lineside Signalling Systems and Other Systems of Train Control Radio Electronic Token Block Drivers Reminder Appliance Engineering Acceptance of Road-Rail Vehicles Design of On-Track Machines Braking System and Performance for Multiple Units Braking Principles for Rail Vehicles Requirements for the Control Arising from Fires on Railway Vehicles Requirements for Driving Cabs of Railway Vehicles Emergency and Safety Equipment and Signs on Rail Vehicles Visibility and Audibility Requirements for Trains Engineering Acceptance of Rail-Mounted Maintenance Machines Vehicle Requirements for the Reliable Operation of Track Circuits (currently in draft) Sanding Equipment Fitted to Multiple Units and On-Track Machines Data Recorders on Trains Design Requirements (currently in draft) Master Rule Book Data recorders on Trains Train Radio Requirements Defective On-Train Equipment Power-Operated Exterior Doors on Passenger Rail Vehicles Secondary Door Locking Operational Requirements Other References Railway Safety (Miscellaneous Provisions) Regulations 1997 The Catalogue of s and the s CD-ROM give the current issue number and status of documents published by Railway Safety. 8 RAILWAY SAFETY