Date September 2017 Engineering Requirements for … Iss 1.pdf · Rail Industry Standard RIS-8060-CCS Issue One Date September 2017 Engineering Requirements for Dispatch of Trains

Rail Industry Standard

RIS-8060-CCS

Issue One

Date September 2017

Engineering Requirements for Dispatch of Trains from Platforms

Synopsis

This document sets out the minumin engineering requirements for the facilities used in dispatching trains from platforms.

Copyright in the Railway Group documents is owned by Rail Safety and Standards Board Limited. All rights are hereby reserved. No Railway Group document (in whole or in part) may be reproduced, stored in a retrieval system, or transmitted, in any form or means, without the prior written permission of Rail Safety and Standards Board Limited, or as expressly permitted by law.

RSSB members are granted copyright licence in accordance with the Constitution Agreement relating to Rail Safety and Standards Board Limited.

In circumstances where Rail Safety and Standards Board Limited has granted a particular person or organisation permission to copy extracts from Railway Group documents, Rail Safety and Standards Board Limited accepts no responsibility for, nor any liability in connection with, the use of such extracts, or any claims arising therefrom. This disclaimer applies to all forms of media in which extracts from Railway Group documents may be reproduced.

Published by: RSSB © Copyright 2017 Rail Safety and Standards Board Limited

RIS-8060-CCS Page 1 of 40

Uncontrolled when printed Document supersedes GERT8060 Iss 2 and GEGN8560 Iss 1 with effect from 02/09/2017 A clarification to this document can be found on the RSSB Standards Catalogue - http://www.rssb.co.uk/railway-group-standards


RIS-8060-CCS

Issue One

Date September 2017

Engineering Requirements for Dispatch of Trains from

Platforms

Issue record

Issue Date Comments

One September 2017 Replaces Railway Group Standard GERT8060 Issue Two as GERT8060 could not be retained as a National Technical Rule and is therefore reclassified as a Rail Industry Standard. It also replaces GEGN8560, issue one.

Superseded or replaced documents

The following Railway Group documents are superseded or replaced, either in whole or in part as indicated:

Superseded documents Sections superseded

Date when sections are superseded

GERT8060 Engineering Requirements for Dispatch of Trains from Platforms, Issue Two

All 02 September 2017

GEGN8560 Guidance on Engineering Requirements for Dispatch of Trains from Platforms, Issue One


GERT8060 issue two ceases to be in force as of 02 December 2017.

Supply

The authoritative version of this document is available at www.rssb.co.uk/railway-group-standards. Enquiries on this document can be forwarded to [email protected].



http://www.rssb.co.uk/railway-group-standards

http://www.rssb.co.uk/railway-group-standards

mailto:[email protected]



RIS-8060-CCS

Issue One

Date September 2017

Contents

Section Description Page

Part 1 Introduction 4 1.1 Purpose of this document 4 1.2 Application of this document 4 1.3 Health and safety responsibilities 4 1.4 Approval and authorisation of this document 4

Annexes Annex A Content of GERT8060, Issue Two 5 Annex B Content of GEGN8560, Issue One 17 Annex C Amendments and Clarifications against GERT8060, Issue Two and

GEGN8560, Issue One 38

Definitions and references 40




RIS-8060-CCS

Issue One

Date September 2017


Platforms

Part 1 Introduction

1.1 Purpose of this document

1.2 Regulation (EU) 402/2013 on a common safety method for risk evaluation and assessment (CSM RA) requires Proposers to identify the hazards arising from planned changes and apply three risk acceptance principles to confirm that the risk arising from the hazards is controlled to an acceptable level.

1.3 RIS-8060-CCS can assist Proposers in applying the CSM RA before planned changes to train dispatch equipment and systems are put into use.

1.4 This RIS can be adopted by IMs and RUs under their respective safety management system (SMS).

1.5 RIS-8060-CCS, which replaces GERT8060 and GEGN8560, reproduces the text of GERT8060 in its entirety in Annex A and GEGN8560 in Annex B.

1.6 Annex C contains the amendments and clarification changes against GERT8060 issue two and GEGN8560 issue one relating to the replacement of the terms ‘required image’ and ‘viewed area’ with ‘dispatch corridor’ and cross referencing a definition of dispatch corridor to RIS-3703-TOM. These changes will be incorporated at the next revision of RIS-8060-CCS issue one.

1.7 Application of this document

1.7.1 Compliance requirements and dates have not been specified since these will be the subject of internal procedures or contract conditions.

1.7.2 The Standards Manual and RGS Code does not currently provide a formal process for deviating from RISs. However, a member of RSSB, having adopted a RIS and wishing to deviate from its requirements, may request a Standards Committee to provide observations and comments on their proposed alternative to the requirement in the RIS. Requests for observations and comments should be submitted to RSSB by e-mail to [email protected]. When formulating a request, consideration should be given to the advice set out in the ‘Guidance to applicants and members of Standards Committee on deviation applications’, available from RSSB’s website.

1.8 Health and safety responsibilities

1.8.1 Users of documents published by RSSB are reminded of the need to consider their own responsibilities to ensure health and safety at work and their own duties under health and safety legislation. RSSB does not warrant that compliance with all or any documents published by RSSB is sufficient in itself to ensure safe systems of work or operation or to satisfy such responsibilities or duties.

1.9 Approval and authorisation of this document

1.9.1 The content of this document was approved by Control Command and Signalling Standards Committee on 13 April 2017.

1.9.2 This document was authorised by RSSB on 31 July 2017.






RIS-8060-CCS

Issue One

Date September 2017

Annex A Content of GERT8060, Issue Two



Railway Group Standard

GE/RT8060

Issue Two

Date June 2010


Synopsis This document mandates the minimum engineering requirements for the facilities used in dispatching trains from platforms.

Content approved by: Multifunctional Standards Committee on 18 February 2010 Authorised by RSSB on dd Month yyyy

Copyright in the Railway Group Standards is owned by Rail Safety and Standards Board Limited. All rights are hereby reserved. No Railway Group Standard (in whole or in part) may be reproduced, stored in a retrieval system, or transmitted, in any form or means, without the prior written permission of Rail Safety and Standards Board Limited, or as expressly permitted by law. RSSB Members are granted copyright licence in accordance with the Constitution Agreement relating to Rail Safety and Standards Board Limited. In circumstances where Rail Safety and Standards Board Limited has granted a particular person or organisation permission to copy extracts from Railway Group Standards, Rail Safety and Standards Board Limited accepts no responsibility for, and excludes all liability in connection with, the use of such extracts, or any claims arising therefrom. This disclaimer applies to all forms of media in which extracts from Railway Group Standards may be reproduced.

Published by: RSSB Block 2 Angel Square 1 Torrens Street London EC1V 1NY © Copyright 2010 Rail Safety and Standards Board Limited




GE/RT8060

Issue Two

Date June 2010

Page 2 of 11 RSSB

Issue record

Issue Date Comments

One June 2003 Original document

Two June 2010 Replaces Issue 1. The word ‘Technical’ has been replaced by the word ‘Engineering’ in the title

Superseded documents

The following Railway Group documents are superseded, either in whole or in part as indicated:

Superseded documents Sections superseded

Date when sections are superseded

GE/RT8060 Issue 1 Technical Requirements for Dispatch of Trains from Platforms


GE/RT8060 Issue 1 Technical Requirements for Dispatch of Trains from Platforms, ceases to be in force and is withdrawn as of 4 September 2010.

Supply

The authoritative version of this document is available at www.rgsonline.co.uk. Uncontrolled copies of this document can be obtained from Communications, RSSB, Block 2, Angel Square, 1 Torrens Street, London EC1V 1NY, telephone 020 3142 5400 or e-mail [email protected]. Other Standards and associated documents can also be viewed at www.rgsonline.co.uk.





GE/RT8060

Issue Two

Date June 2010

RSSB Page 3 of 11

Contents


Part 1 Purpose and Introduction 4 1.1 Purpose 4 1.2 Introduction 4

Part 2 Train Dispatch – Engineering Requirements 5 2.1 Compatibility requirements for train dispatch equipment 5 2.2 Types of indicators 2.3 Station mirrors 5 2.4 Station cameras and station monitors 6 2.5 Station cameras and on-train monitors 7

Part 3 Application of this Document 8 3.1 Application – infrastructure managers 8 3.2 Application – railway undertakings 8 3.3 Health and safety responsibilities 9

Definitions and abbreviations 10

References 11




GE/RT8060

Issue Two

Date June 2010

Page 4 of 11 RSSB

Part 1 Purpose and Introduction

1.1 Purpose

1.1.1 This document mandates the engineering requirements for the equipment used in the dispatching of passenger trains from platforms.

1.2 Introduction

1.2.1 Background

1.2.1.1 This document applies to the following equipment and facilities:

a) Indicators required for train dispatch

b) Platform-mounted mirrors

c) Station-mounted cameras and monitors

d) Station-mounted cameras and train-mounted monitors.

1.2.1.2 All the methods listed in 1.2.1.1 apply to DOO(P) but are not exclusive to DOO(P).

1.2.2 Related requirements in other documents

1.2.2.1 The following Railway Group Standards contain requirements that are relevant to the scope of this document:

GE/RT8000 Rule Book

GE/RT8037 Signal Positioning and Visibility

GI/RT7016 Interface between Station Platforms, Track and Trains

GK/RT0045 Lineside Signals, Indicators and Layout of Signals

1.2.2.2 Where co-operation is required by this document between the infrastructure manager and railway undertakings in the design of new equipment or changes to the equipment or facilities provided for train dispatch, the process for co-operation is set out in GE/RT8270 Assessment of Compatibility of Rolling Stock and Infrastructure.

1.2.3 Supporting documents

1.2.3.1 The following documents support this Railway Group Standard:

GE/GN8560 Guidance on Engineering Requirements for Dispatch of Trains from Platforms




GE/RT8060

Issue Two

Date June 2010

RSSB Page 5 of 11

Part 2 Train Dispatch – Engineering Requirements

2.1 Compatibility requirements for train dispatch equipment

2.1.1 Before any new or changed infrastructure or rolling stock (including lineside and / or on-board control, command and signalling equipment) is brought into use, it is necessary to check that it is compatible with the infrastructure and rolling stock assets and operations on the routes on which it is to be used.

2.1.2 GE/RT8270 sets out the requirements and responsibilities for the assessment of compatibility between rolling stock and infrastructure assets, including control, command and signalling equipment and their operations. It sets out the arrangements by which the assessment of compatibility is undertaken and identifies those responsible for managing that assessment.

2.1.3 This document GE/RT8060 mandates specific engineering requirements for the assessment of compatibility of different types of train dispatch technical systems.

2.1.4 The assessment process shall check that:

a) All indicators required for train dispatch are compatible with train operations

b) Station-mounted monitors are compatible with train operations and the trains

c) Station-mounted mirrors are compatible with train operations and the trains

d) Train-mounted monitors are compatible with the station-mounted cameras.

2.1.5 Requirements to prevent obscuration of railway signals and indicators by facilities, including mirrors and station-mounted monitors, are set out in GE/RT8037.

2.2 Types of indicators

2.2.1 Only the following type of indicators shall be installed to aid the dispatch of trains from stations:

a) OFF indicators

b) Banner repeater indicators

c) Right away (RA) indicators

d) Close door (CD) indicators.

2.3 Station mirrors

2.3.1 General requirements

2.3.1.1 Where station mirrors are provided, station lighting shall be provided, as set out in section 10 of GI/RT7016.

2.3.1.2 The maximum permitted number of mirrors for use at any given train stop location shall be one.

2.3.1.3 Mirrors shall not be provided for the dispatch of trains more than eight car lengths (nominal car length of 20 m) with the exception of special train stop locations.

2.3.1.4 The size, location and orientation of the mirrors shall be such that the driver is able to see the required image. The tolerance for achieving this shall be for trains stopped in the range ± 1.0 m from the marked train stop location.




GE/RT8060

Issue Two

Date June 2010

Page 6 of 11 RSSB

2.3.2 Mechanical requirements

2.3.2.1 Mirrors shall have a spatial uniformity and luminance uniformity ratio for faithful rendition of the scene in all likely ambient temperatures, wind loadings and other environmental weather conditions.

2.3.3 Optical requirements

2.3.3.1 Mirrors shall have specular colour reflectance and a colour luminance uniformity ratio, for faithful rendition of the scene.

2.3.3.2 Mirrors shall be designed to prevent condensation and frost forming on the optical surface.

2.4 Station cameras and station monitors


2.4.1.1 Where station cameras and monitors are provided, station lighting shall be provided, as set out in section 10 of GI/RT7016.

2.4.1.2 The mixing of colour and monochrome images shall not be permitted.

2.4.1.3 Polarising filters shall not be fitted to the monitors.

2.4.1.4 The size, location and orientation of the monitors shall be such that the driver or staff involved in train working is able to see the required image. The tolerance for achieving this shall be ± 1.0 m from the marked train stop location.

2.4.2 Requirements for station-mounted monitors

2.4.2.1 Monochrome cathode ray tube (CRT) monitors shall have a minimum luminance capability output of 401 cd.m-2 and an anti-reflective coated front panel bond.

2.4.2.2 Where CRT monitors are fitted, only white phosphors shall be used.

2.4.2.3 Thin film transistor (TFT) monitors shall have a minimum luminance capability output of 500 cd.m-2 and an anti-reflective coated front panel bond.

2.4.2.4 The system shall be designed and operated so that permanent phosphor image burn does not occur on the monitor screen.

2.4.2.5 System proving methods shall be employed to demonstrate to the driver that the station-mounted monitors are providing a live, faithful rendition to facilitate checking that nothing is trapped in the train doors.

2.4.2.6 It is permissible for monochrome or colour CRT monitors to be used.

2.4.2.7 It is permissible to use TFT liquid crystal display (LCD) display monitors.

2.4.3 Performance of the station-mounted camera / monitor systems

2.4.3.1 The visual detection of the target object shall include a minimum angular size of the height of the target object as displayed on the monitor and subtended at the observer's eye. This minimum angular size shall be 20 minutes of arc.

2.4.3.2 Where CRT screens are provided, there shall be a minimum system performance resolution of 400 horizontal television lines.

2.4.3.3 Where TFT screens are provided, there shall be a minimum system performance television line (TVL) resolution equivalent to 400 horizontal television lines.

2.4.3.4 The optical properties of the system shall be capable of transmitting a faithful rendition of the viewed area.




GE/RT8060

Issue Two

Date June 2010

RSSB Page 7 of 11

2.4.3.5 The system requirements to maintain system performance shall include the ability to control the angular size of the image displayed, resolution, brightness, contrast, shape distortion, refresh rate and the speed of adaptation to brightness and contrast.

2.5 Station cameras and on-train monitors

2.5.1 General requirement

2.5.1.1 Where station cameras are provided, station lighting shall be provided, as set out in section 10 of GI/RT7016.

2.5.1.2 Cameras shall be electrically and optically compatible with the monitors.

2.5.1.3 The location and orientation of the video signal transmitter shall be such that the transmitted video signal from the platform is capable of being received by the train in its expected range of stopping locations.

2.5.1.4 Polarising filters shall not be permitted to be fitted to monitors.

2.5.2 Performance of station camera and on-train monitor systems

2.5.2.1 The performance requirements for station cameras and on-train monitor systems shall be the same as those for station cameras and monitor systems, as set out in 2.4.3.




GE/RT8060

Issue Two

Date June 2010

Page 8 of 11 RSSB

Part 3 Application of this Document 3.1 Application - infrastructure managers

3.1.1 Scope

3.1.1.1 The requirements of this document apply to all new or modified facilities used in dispatching trains from platforms.

3.1.1.2 It is permissible for the infrastructure manager to designate specific infrastructure projects, ongoing when this document comes into force, for which compliance with the requirements of this document applicable to the design, construction and commissioning of new or altered infrastructure is not mandatory. When designating such projects, the infrastructure manager shall consider:

a) Its responsibilities under its current safety authorisation

b) The stage reached by the project at the time this document comes into force (for example, approval in principle)

c) Whether compliance is necessary to ensure compatibility with other parts of the infrastructure

d) Whether compliance is necessary to facilitate safe interworking having regard to changes to related requirements mandated on another infrastructure manager or a railway undertaking

e) The economic impact of compliance, but subject to its current safety authorisation in relation to the infrastructure in question.

3.1.2 Exclusions from scope

3.1.2.1 Section 2.5.1.4 of this document does not apply to infrastructure managers.

3.1.3 General compliance date for infrastructure managers

3.1.3.1 This Railway Group Standard comes into force and is to be complied with from 4 September 2010.

3.1.3.2 After the compliance dates or the date by which compliance is achieved if earlier, infrastructure managers are to maintain compliance with the requirements set out in this Railway Group Standard. Where it is considered not reasonably practicable to comply with the requirements, authorisation not to comply should be sought in accordance with the Railway Group Standards Code.

3.1.4 Exceptions to general compliance date

3.1.4.1 There are no exceptions to the general compliance date specified in 3.1.3 for infrastructure managers.

3.2 Application - railway undertakings

3.2.1 Scope


3.2.1.2 Only the following sections of this document apply to railway undertakings: 2.1, 2.5.1.2, 2.5.1.3, 2.5.1.4, and 2.5.2.

3.2.2 General compliance date for railway undertakings

3.2.2.1 This Railway Group Standard comes into force and is to be complied with 4 September 2010.

3.2.2.2 After the compliance dates or the date by which compliance is achieved if earlier, railway undertakings are to maintain compliance with the requirements set out in




GE/RT8060

Issue Two

Date June 2010

RSSB Page 9 of 11

this Railway Group Standard. Where it is considered not reasonably practicable to comply with the requirements, authorisation not to comply should be sought in accordance with the Railway Group Standards Code.


3.2.3.1 There are no exceptions to the general compliance date specified in 3.2.2 for railway undertakings.






GE/RT8060

Issue Two

Date June 2010

Page 10 of 11 RSSB

Definitions and abbreviations

CCTV

Closed circuit television.

CRT

Cathode ray tube.

CSDE

Correct side door enable.

DOO(P)

Driver only operated – passenger.

LCD

Liquid crystal display.

Luminance

The luminous flux density at a surface in a defined plane. The SI unit of luminance is the lux, which is equal to one lumen per square metre (lm.m-2).

Luminance uniformity ratio

The ratio of the minimum to the average luminance over a specified surface.

Spatial uniformity

Light is distributed spatially in terms of brightness and contrast across a surface in a constant uniform manner.

Specular reflectance

Reflection in a sharply defined direction equal to the angle of incidence from a smooth interface between homogeneous materials, that is to say, obeying the Law of Reflection.

TFL

Transport for London.

TFT

Thin film transistor.

Train dispatch

Systems, equipment, procedures and instructions intended to ensure the safe departure of a train from a platform.

TVL

Television line.

Uniformity





GE/RT8060

Issue Two

Date June 2010

RSSB Page 11 of 11

References The Catalogue of Railway Group Standards and the Railway Group Standards CD-ROM give the current issue number and status of documents published by RSSB. This information is also available from www.rgsonline.co.uk.

Documents referenced in the text

RGSC 01 The Railway Group Standards Code

Railway Group Standards

GE/RT8000 Rule Book


GE/RT8270 Assessment of Compatibility of Rolling Stock and Infrastructure



RSSB documents




RIS-8060-CCS

Issue One

Date September 2017


Platforms

Annex B Content of GEGN8560 issue one



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Guidance on Engineering Requirements for Dispatch of Trains from Platforms

Page 2 of 20 RSSB

GE/GN8560 Issue One: June 2010

Issue record

Issue Date Comments

One June 2010 Original document

Superseded documents

This Railway Group Guidance Note does not supersede any other Railway Group documents.

Supply

The authoritative version of this document is available at www.rgsonline.co.uk. Uncontrolled copies of this document can be obtained from Communications, RSSB, Block 2, Angel Square, 1 Torrens Street, London EC1V 1NY, telephone 020 3142 5400 or e-mail [email protected]. Railway Group Standards and associated documents can also be viewed at www.rgsonline.co.uk.




RSSB Page 3 of 20


Contents


Part 1 Introduction 4 1.1 Purpose of this document 4 1.2 Copyright 4 1.3 Approval and authorisation of this document 4

Part 2 Guidance on Train Dispatch – Engineering Requirements 6 2.1 Compatibility requirements for train dispatch equipment 6 2.2 Types of indicators 6 2.3 Station mirrors 7 2.4 Station cameras and station monitors 9 2.5 Station cameras and on-train monitors 12

Part 3 Application of this Document 14 3.1 Application – infrastructure managers 14 3.2 Application – railway undertakings 14 3.3 Health and safety responsibilities 15

Appendices Appendix A Application Guidelines for Acceptance Tests 16 Appendix B Specification Guidelines for a Test Target Object 17 Appendix C Performance Specification for Cameras and Monitors used in Train

Dispatch Systems 18

Definitions and abbreviations 19

References 20

Figure 1 Example of an on-train monitor configuration relationship to train formation 12



Page 4 of 20 RSSB


Part 1 Introduction

1.1 Purpose of this document

This document gives guidance on interpreting the requirements of Railway Group Standard GE/RT8060. It does not constitute a recommended method of meeting any set of mandatory requirements.

All requirements in GE/RT8060 are reproduced in the sections that follow. Guidance is provided as a series of sequentially numbered clauses prefixed ‘GN’ immediately below the text to which it relates. Where there is no guidance given, this is stated.

Specific responsibilities and compliance requirements are laid down in the Railway Group Standard itself.

1.2 Copyright

Copyright in the Railway Group documents is owned by Rail Safety and Standards Board Limited. All rights are hereby reserved. No Railway Group document (in whole or in part) may be reproduced, stored in a retrieval system, or transmitted, in any form or means, without the prior written permission of Rail Safety and Standards Board Limited, or as expressly permitted by law.

Rail Safety and Standards Board (RSSB) members are granted copyright licence in accordance with the Constitution Agreement relating to Rail Safety and Standards Board Limited.

In circumstances where Rail Safety and Standards Board Limited has granted a particular person or organisation permission to copy extracts from Railway Group documents, Rail Safety and Standards Board Limited accepts no responsibility for, and excludes all liability in connection with, the use of such extracts, or any claims arising therefrom. This disclaimer applies to all forms of media in which extracts from Railway Group Standards may be reproduced.

1.3 Approval and authorisation of this document

The content of this document was approved by:

Multifunctional Standards Committee on 18 February 2010

This document was authorised by RSSB on 27 April 2010



RSSB Page 5 of 20


GN01 There is no guidance associated with Part 1.

Part 1 Purpose and Introduction

1.1 Purpose

1.1.1 This document mandates the engineering requirements for the equipment used in the dispatching of passenger trains from platforms.

1.2 Introduction

1.2.1 Background

1.2.1.1 This document applies to the following equipment and facilities:

a) Indicators required for train dispatch

b) Platform-mounted mirrors

c) Station-mounted cameras and monitors

d) Station-mounted cameras and train-mounted monitors.

1.2.1.2 All the methods listed in 1.2.1.1 apply to DOO(P) but are not exclusive to DOO(P).

1.2.2 Related requirements in other documents

1.2.2.1 The following Railway Group Standards contain requirements that are relevant to the scope of this document:

GE/RT8000 Rule Book




1.2.2.2 Where co-operation is required by this document between the infrastructure manager and railway undertakings in the design of new equipment or changes to the equipment or facilities provided for train dispatch, the process for co-operation is set out in GE/RT8270 Assessment of Compatibility of Rolling Stock and Infrastructure.

1.2.3 Supporting documents

1.2.3.1 The following documents support this Railway Group Standard:




Page 6 of 20 RSSB


Part 2 Guidance on Train Dispatch – Engineering Requirements

2.1 Compatibility requirements for train dispatch equipment

GN02 The purpose of the assessment process is to facilitate the viewing by railway undertaking train dispatch staff of indicators supplied and maintained by the infrastructure manager.

GN03 The purpose of the assessment process is to facilitate the viewing by drivers of station monitors and mirrors supplied and maintained by the infrastructure manager.

GN04 The purpose of the assessment process is to facilitate the working of train-mounted monitors supplied and maintained by the railway undertaking, with station-mounted cameras supplied and maintained by the infrastructure manager.

GN05 Appendix A sets out typical acceptance tests as part of the assessment of compatibility process of a train dispatch system.

GN06 The GE/RT8000 Rule Book includes the rules for dispatching trains from station platforms.

2.2 Types of indicators

2.1.1 Before any new or changed infrastructure or rolling stock (including lineside and / or on-board control, command and signalling equipment) is brought into use, it is necessary to check that it is compatible with the infrastructure and rolling stock assets and operations on the routes on which it is to be used.

2.1.2 GE/RT8270 sets out the requirements and responsibilities for the assessment of compatibility between rolling stock and infrastructure assets, including control, command and signalling equipment and their operations. It sets out the arrangements by which the assessment of compatibility is undertaken and identifies those responsible for managing that assessment.

2.1.3 This document GE/RT8060 mandates specific engineering requirements for the assessment of compatibility of different types of train dispatch technical systems.

2.1.4 The assessment process shall check that:

a) All indicators required for train dispatch are compatible with train operations

b) Station-mounted monitors are compatible with train operations and the trains

c) Station-mounted mirrors are compatible with train operations and the trains

d) Train-mounted monitors are compatible with the station-mounted cameras.

2.1.5 Requirements to prevent obscuration of railway signals and indicators by facilities, including mirrors and station-mounted monitors, are set out in GE/RT8037.

2.2.1 Only the following type of indicators shall be installed to aid the dispatch of trains from stations:

a) OFF indicators

b) Banner repeater indicators



RSSB Page 7 of 20


c) Right away (RA) indicators

d) Close door (CD) indicators.

GN07 These are the only types of indicators which are currently in use for supporting train dispatch.

GN08 The requirements for train drivers’ visual performance, and other staff involved in train working, are set out in GERT8060.

GN09 Further information on the appearance and application of the indicators is set out in GK/RT0045.

GN10 Further information on the positioning of these indicators and associated plungers or switches is set out in GE/RT8037.

GN11 CD and RA indicators are generally provided as a means of communicating messages about station operations from the platform staff to the driver as an alternative to hand-signals. The CD and RA indicators are positioned such that they are readable by both the driver and person in charge of the platform, so they are able to determine, or receive information to confirm that the train is secure and that nothing is trapped in the train doors.

GN12 GK/RT0045 places an equipment performance category 5 on CD and RA indicators, either independently mounted or fitted to signals. This ensures that category 5 indicators are readable at 65 m by the driver when stationary at any normal stopping position, or person in charge of the platform. The readability may be obstructed by:

a) Station facilities and people

b) The line curvature of the platform

c) The design of driving cabs

d) The position of the driving cab relative to the position of the person in charge of the platform.

GN13 Where relevant railway signals and indicators are obstructed, the fitment of additional CD and RA indicators enables readability by the driver when stationary at any normal stopping position, or person in charge of the platform. The positioning of additional CD and RA indicators is set out in GE/RT8037.

GN14 Where the RA indicator is provided on a European Railway Traffic Management System (ERTMS) line and there are no lineside signals, the RA indication should be interlocked so that it only illuminates when the relevant movement authority has been issued. This is to mitigate the risk that a train could be dispatched in error when the driver does not have a movement authority.

2.3 Station mirrors


2.3.1.1 Where station mirrors are provided, station lighting shall be provided, as set out in section 10 of GI/RT7016.

2.3.1.2 The maximum permitted number of mirrors for use at any given train stop location shall be one.

2.3.1.3 Mirrors shall not be provided for the dispatch of trains more than eight car lengths (nominal car length of 20 m) with the exception of special train stop locations.

2.3.1.4 The size, location and orientation of the mirrors shall be such that the driver is able to see the required image. The tolerance for achieving this shall be for trains stopped in the range ± 1.0 m from the marked train stop location.



Page 8 of 20 RSSB


GN15 All maintained luminance levels to enable viewing by station mirrors during the hours of darkness should be determined without the presence of trains in platforms.

GN16 During the hours of darkness, the horizontal and vertical plane luminance enable a driver to visually confirm from the station mirror that nothing is trapped in the train doors.

GN17 The maximum of one mirror for a given train stop location ensures a continuous unobstructed line of sight view.

GN18 The line of sight from the driver’s eye to the test target object viewed through a single mirror, limits the whole image at the marked train stop location to eight car lengths.

GN19 The platform mirrors should be positioned on the infrastructure such that all relevant railway signals and indicators are readable at the start of the reading distance by the driver.

GN20 The ± 1.0 m marked train stop location defines the design size, position and height of the mirror, for the driver to see a faithful rendition of the scene, to allow for anticipated variation in the stopping point.

GN21 The platform mirrors should be positioned, where practicable, in line with the upper visual field view of the driver’s eye, to exploit the ability of the driver’s eye to detect / monitor movement in the image.

GN22 The faithful rendition of the scene provides the driver with an undistorted view to facilitate checking that nothing is trapped in the train doors.

2.3.2 Mechanical requirements

GN23 Spatial uniformity ensures the mirror is undistorted in all likely ambient temperatures, and depends upon the luminance and chromaticity co-ordinates being constant across the whole mirror surface.

GN24 The mirror reflection should be consistent across the surface for variable weather conditions, in order to visually display to the driver a faithful rendition of the scene. The surface dependability includes reflectance wavelengths of the metals used to coat the mirror surface, the surface preparation, the angle of incidence, and specific properties of the metals themselves. Silver or aluminium is preferable, as these metals maintain their specular colour reflectance qualities throughout the visible spectrum.

GN25 It is advisable to mount the mirror on three support points only, to avoid stress-induced distortion from high wind loadings.

2.3.3 Optical requirements

GN26 The optical properties requirements enable the driver to view clearly, to facilitate checking that nothing is trapped in the train doors.

2.3.2.1 Mirrors shall have a spatial uniformity and luminance uniformity ratio for faithful rendition of the scene in all likely ambient temperatures, wind loadings and other environmental weather conditions.

2.3.3.1 Mirrors shall have specular colour reflectance and a colour luminance uniformity ratio, for faithful rendition of the scene.

2.3.3.2 Mirrors shall be designed to prevent condensation and frost forming on the optical surface.



RSSB Page 9 of 20


GN27 Driver performance (visual recognition) requires all the visible light spectrum to ensure the image reflected from the mirror is a faithful rendition of the scene. The specular colour reflectance values should therefore incorporate those within the visible light spectrum.

GN28 Spatial uniformity should be of minimum values that prevent distortion of the screen image.

GN29 Incorporating a heating demist element into the mirror design may protect the reflector surface from condensation and frost.

2.4 Station cameras and station monitors


GN30 An infrastructure-mounted video camera / monitor system is used to facilitate checking that nothing is trapped in the train doors.

GN31 All maintained luminance levels to enable viewing by line of sight during the hours of darkness should be determined without the presence of trains in platforms.

GN32 During the hours of darkness the horizontal and vertical plane luminance enable a driver observing the monitors, to confirm that nothing is trapped in the train doors.

GN33 Presenting a consistent and logical display format at each station is preferable for driver performance (visual recognition). Logical, in this context, means the sequence of images representative of the platform / train interface scene being displayed. One method of achieving this is by a top down, left to right read, where the top left monitor represents the image closest to the front of the train.

GN34 To support reliable incident detection by the driver, there should be consistent display and size format, for monitors with multiple images provided at stations on driver only operated – passenger DOO(P) routes.

GN35 Driver performance (visual recognition) improves with a lower number of monitors that capture the complete composite platform image; this may lead to shorter dwell times.

GN36 To reduce possible incorrect operation of the correct side door enable (CSDE) facility it is preferable to position the station-mounted monitors on the platform side, where practicable.

GN37 Consistent focal lengths of camera lenses for a particular platform give a driver a consistent perspective and reduce visual ambiguity.

GN38 Positioning of the monitors should take into account the effects of bright direct sunlight, in order to minimise shadow effects caused by platform canopies. These effects may be reduced by the use of cameras with spot or centre-weighted light metering, or monitor hoods.

GN39 The location and arrangement of the monitors should be optimised, in order to minimise reading time and error. The preferred location for monitors is in the upper field of view with

2.4.1.1 Where station cameras and monitors are provided, station lighting shall be provided, as set out in section 10 of GI/RT7016.

2.4.1.2 The mixing of colour and monochrome images shall not be permitted.

2.4.1.3 Polarising filters shall not be fitted to the monitors.




Page 10 of 20 RSSB


respect to the observer's eye level. It is preferable for multiple images to be arranged in a horizontal array with the forward-most image corresponding spatially with the actual front of the train. This layout of the images is a mirrored arrangement of the real scene. There may be an impact on performance relative to the number of images presented on a single monitor, due to the time a driver needs to scan the images.

GN40 Polarising filters when fitted to monitor screens may cause a significant degradation to the image, as viewed by the driver, due to the polarising properties of polarising sunglasses, which are an option for drivers, as set out in GE/RT8060.

2.4.2 Requirements for station-mounted monitors

GN41 Standard CRT based closed circuit television (CCTV) monitors in either colour or monochrome formats are not recommended for use in DOO(P) applications, as the CRT (as standard) is unable to deliver a sufficiently high luminance output to provide an image with acceptable contrast and brightness levels under bright or even fair light conditions in open platform areas. Additionally, the CRT front panels are normally polished dark glass, causing reflectance problems.

GN42 Existing DOO monitors have two further features which are not available on standard monochrome CCTV monitors. These are ‘Auto brightness and contrast control’ and a ‘switch to black’ facility. The Auto brightness / contrast feature assists in providing consistent luminance output relative to the ambient light level. The switch to black facility is engaged when no train is in the platform, improving the life of the CRT in terms of both luminance output and image burn.

GN43 High performance monochrome CRT monitors have a superior performance to TFT LCD displays in all areas, with the exception of contrast / brightness. However, TFT LCD produce better quality images, in particular colour images, when comparing a higher specification than the minimum, as set out in 2.4.2.

GN44 CRT burn-in is where a static image over an extended time leads to the phosphor creating a permanent ‘ghosting’ image on the CRT screen. The ghosting effect on the monitor obscures the faithful rendition of the scene. Practical methods to prevent this include video image movement systems, switching and trigger arrangements or a frequent change of the CRT as part of a maintenance regime.

GN45 Without system proving, there remains a risk that the driver will see a frozen image rather than a real-time image.

2.4.2.1 Monochrome cathode ray tube (CRT) monitors shall have a minimum luminance capability output of 401 cd.m-2 and an anti-reflective coated front panel bond.

2.4.2.2 Where CRT monitors are fitted, only white phosphors shall be used.

2.4.2.3 Thin film transistor (TFT) monitors shall have a minimum luminance capability output of 500 cd.m-2 and an anti-reflective coated front panel bond.

2.4.2.4 The system shall be designed and operated so that permanent phosphor image burn does not occur on the monitor screen.

2.4.2.5 System proving methods shall be employed to demonstrate to the driver that the station-mounted monitors are providing a live, faithful rendition to facilitate checking that nothing is trapped in the train doors.

2.4.2.6 It is permissible for monochrome or colour CRT monitors to be used.

2.4.2.7 It is permissible to use TFT liquid crystal display (LCD) display monitors.



RSSB Page 11 of 20


GN46 The effect of bright sunlight on the monitor screen image may impair the driver’s view. The infrastructure manager and railway undertaking should therefore co-operate to ensure the correct positioning of the monitors in respect to bright direct sunlight, in order to minimise shadow effects caused by platform canopies. These effects may be reduced by the use of cameras with spot or centre-weighted light metering, or monitor hoods.

2.4.3 Performance of the station-mounted camera / monitor systems

GN47 Primary acceptance test criteria for a given scheme should include incident scenarios representative of the operational requirements; that is to say, target objects should be the same or similar to (and no more difficult than) those that would be expected to be seen under current train dispatch methods. Target objects are used for simulating incidents when testing the system. A grey board is a standard CCTV system test target. The board has a flat rectangular area in the plane perpendicular to the direction of view, with a height of 1.0 m, width of 0.5 m, and has uniform colour grey to BS4800 Item 00A09.

GN48 Other potential test target objects include:

a) Child – a model child 825 mm high (in line with that used by Transport for London (TFL) underground standard for CCTV) dressed in neutral colours placed close to the train doors

b) Adult trapped aware – an adult passenger standing against / caught in the train doors making vigorous efforts (for example, waving arms) to attract attention

c) Adult trapped unaware – an adult passenger standing tight against the train but, either as yet unaware they are trapped or otherwise making little effort to attract attention (for example, assuming doors will re-open to release them)

d) Pushchair with baby – left on platform close to the doorway.

Appendix B sets out further guidance on the specification for a test target object.

GN49 CRT and TFT are the two basic technologies available for monitors. CRTs are bigger and bulkier than an LCD; they consume more power and are prone to screen flicker. Appendix C sets out further guidance on the performance specification for both these technologies.

GN50 Appendix A sets out further application guidelines for acceptance tests in determining the performance of station-mounted camera / monitor systems.

2.4.3.1 The visual detection of the target object shall include a minimum angular size of the height of the target object as displayed on the monitor and subtended at the observer's eye. This minimum angular size shall be 20 minutes of arc.

2.4.3.2 Where CRT screens are provided, there shall be a minimum system performance resolution of 400 horizontal television lines.

2.4.3.3 Where TFT screens are provided, there shall be a minimum system performance television line (TVL) resolution equivalent to 400 horizontal television lines.

2.4.3.4 The optical properties of the system shall be capable of transmitting a faithful rendition of the viewed area.

2.4.3.5 The system requirements to maintain system performance shall include the ability to control the angular size of the image displayed, resolution, brightness, contrast, shape distortion, refresh rate and the speed of adaptation to brightness and contrast.



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2.5 Station cameras and on-train monitors


GN51 An infrastructure-mounted video camera / on-train monitor system is used to directly view the length of the train adjacent to the platform, to ensure that nothing is potentially trapped in the train doors.

GN52 All maintained luminance levels to enable viewing by station cameras and on-train monitors during the hours of darkness should be determined without the presence of trains in platforms.

GN53 During the hours of darkness the horizontal and vertical plane luminance supports a driver observing the monitors, to confirm that nothing is trapped in the train doors.

GN54 Driver performance (visual recognition) improves with a lower number of monitors that capture the complete composite platform image; this may lead to shorter dwell times.

GN55 Where multiple images are presented, consideration should be given to providing a consistent display format, dwell times, and retaining minimum target sizes within images to support reliable incident detection.

GN56 All on-train monitor images should be displayed in a logical and consistent format; logical in this context means the sequence of images should be representative of the scene being displayed. Presenting a consistent display format at each station is preferable for driver performance (visual recognition). This could be achieved by a top down, left to right read, where the top left monitor represents the image closest to the driver’s position, as shown in Figure 1.

Figure 1 Example of an on-train monitor configuration relationship to train formation

2.5.1.1 Where station cameras are provided, station lighting shall be provided, as set out in section 10 of GI/RT7016.

2.5.1.2 Cameras shall be electrically and optically compatible with the monitors.

2.5.1.3 The location and orientation of the video signal transmitter shall be such that the transmitted video signal from the platform is capable of being received by the train in its expected range of stopping locations.

2.5.1.4 Polarising filters shall not be permitted to be fitted to monitors.



RSSB Page 13 of 20


GN57 The use of ATO on Thameslink if used in similar circumstances to London Underground is good justification for not following this guidance. However, this is a particular example and is not replicated elsewhere on the national rail network.

2.5.2 Performance of station camera and on-train monitor systems

GN58 The compatibility requirements set out in 2.5.1.2 and 2.5.1.3 are encompassed by the requirements set out in 2.1.

GN59 Guidance for station camera and on-train monitor systems is the same as that for station-mounted camera and monitor systems, as set out in GN47 to GN50.

2.5.2.1 The performance requirements for station cameras and on-train monitor systems shall be the same as those for station cameras and monitor systems, as set out in 2.4.3.



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Part 3 Application of this Document 3.1 Application - infrastructure managers

3.1.1 Scope


3.1.1.2 It is permissible for the infrastructure manager to designate specific infrastructure projects, ongoing when this document comes into force, for which compliance with the requirements of this document applicable to the design, construction and commissioning of new or altered infrastructure is not mandatory. When designating such projects, the infrastructure manager shall consider:

a) Its responsibilities under its current safety authorisation

b) The stage reached by the project at the time this document comes into force (for example, approval in principle)

c) Whether compliance is necessary to ensure compatibility with other parts of the infrastructure

d) Whether compliance is necessary to facilitate safe interworking having regard to changes to related requirements mandated on another infrastructure manager or a railway undertaking

e) The economic impact of compliance, but subject to its current safety authorisation in relation to the infrastructure in question.

3.1.2 Exclusions from scope

3.1.2.1 Section 2.5.1.4 of this document does not apply to infrastructure managers.

3.1.3 General compliance date for infrastructure managers


3.1.3.2 After the compliance dates or the date by which compliance is achieved if earlier, infrastructure managers are to maintain compliance with the requirements set out in this Railway Group Standard. Where it is considered not reasonably practicable to comply with the requirements, authorisation not to comply should be sought in accordance with the Railway Group Standards Code.


3.1.4.1 There are no exceptions to the general compliance date specified in 3.1.3 for infrastructure managers.

3.2 Application - railway undertakings

3.2.1 Scope


3.2.1.2 Only the following sections of this document apply to railway undertakings: 2.1, 2.5.1.2, 2.5.1.3, 2.5.1.4, and 2.5.2.

3.2.2 General compliance date for railway undertakings




RSSB Page 15 of 20


GN60 There is no guidance associated with Part 3.

3.2.2.2 After the compliance dates or the date by which compliance is achieved if earlier, railway undertakings are to maintain compliance with the requirements set out in this Railway Group Standard. Where it is considered not reasonably practicable to comply with the requirements, authorisation not to comply should be sought in accordance with the Railway Group Standards Code.


3.2.3.1 There are no exceptions to the general compliance date specified in 3.2.2 for railway undertakings.





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Appendix A Application Guidelines for Acceptance Tests

The content of this appendix is not mandatory and is provided for guidance only

A.1 Acceptance tests

a) Acceptance tests are performed when station-mounted or on-train camera and monitor systems are brought into operational service to ensure they meet the required standards. The acceptance tests include commissioning tests, resolution tests and system viewing tests.

A.2 Commission test

a) Viewing of a platform monitor or mirror for the purpose of initial commissioning testing should be carried out from within the cab of a unit that stops at the station under test during normal operation. This enables the equipment to be adjusted to the correct position prior to the acceptance tests and requires co-operation between the railway undertaking and infrastructure manager

b) The viewing of a platform monitor or mirror during the initial commissioning tests requires the co-operation of the railway undertaking and infrastructure manager, with the driver in the seated position within the cab.

A.3 Resolution test

a) The ‘Rotakin’™’ test card or any other equivalent test card may be used

b) The resolution test target should be set up with the all black side facing the camera at the furthest point from the camera that the camera is intended to cover. The size of the image on the screen should be checked to confirm that the image size meets the requirement to cover more than 10% of the height of the picture displayed on the monitor, and also that the image size is large enough to subtend an angle at the driver’s eye of greater than 20 degrees.

A.4 System viewing test

a) The target for viewing tests should be 2 m high by 0.5 m wide, and coloured black. As an alternative, the Rotakin’™ test card or any other equivalent test card may be used

b) The system viewing test should be carried out for each stopping position along the platform at which driver’s viewing aids are provided

c) The viewing test target should be moved along the platform to confirm that, for all points along the platform covered by the viewing aids, a complete image of the viewing test target appears in at least one monitor. Specific confirmation of this should be obtained for the nearest and furthest point from each camera that defines the extent of the platform which the camera position is designed to cover.

A.5 Protective covers for mirrors

a) Where protective covers are employed for mirrors, a check should be made that drivers are able to visually detect the target object in a number of typical locations with the protective covers in place.



RSSB Page 17 of 20


Appendix B Specification Guidelines for a Test Target Object


B.1 Target object

a) A typical target object has a flat, rectangular area in the plane perpendicular to the direction of view. The area has a height of 1.0 m, width of 0.5 m, and has uniform colour grey to BS4800 item 00A09 or BS381C Shade 693

b) Alternative target objects include the Rotakin’™ model, pushchair, and people.

B.2 Rotakin’™ model

a) Rotakin’™ is a black and white life-sized human silhouette that displays video test charts. These charts are used for testing video equipment performance such as camera image resolution. Rotakin’™ models are used by Cenelec in EN 0132-7

b) There are four distinct recognition levels used with a Rotakin’™ model, compared to a base reference of 100%R, which is when the Rotakin’™ model fills the screen vertically

c) 5%R relates to the image height of a standing person, defined using the Rotakin’™ standard test target 1.6 m high, where the viewer is able to determine the number, direction, and general speed of movement of people whose presence is known without searching the monitor

d) 10%R relates to the image height of a standing person defined using the Rotakin’™ standard test target of 1.6 m, where the viewer after a search of the monitor is able ascertain with a high degree of certainty whether or not a person is visible in the picture displayed

e) 50%R relates to the image height of a standing person, defined using the Rotakin’™ standard test target of 1.6 m, where the viewer is able to state with a high degree of certainty whether or not the individual shown is the same as someone they have seen before

f) 120% relates to the image height of a standing person, defined using the Rotakin’™ standard test target of 1.6 m, where the viewer is able to determine the identity of a subject beyond reasonable doubt.

B.3 People

a) As an alternative or in addition to a typical target object or Rotakin’™ it may be practical to observe adults of at least 1 m in height without heeled shoes and headwear

b) In addition to an adult, a model of a child 825 mm high (in line with that used by TFL underground standard for CCTV) dressed in neutral colours may be considered.



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Appendix C Performance Specification for Cameras and Monitors used in Train Dispatch Systems


C.1 Cameras

C.1.1 Performance requirements – monochrome cameras:

a) Resolution: 560 lines

b) Minimum illumination rating: 0.1 lux (using an f1.4 lens producing 25% video)

c) Signal-to-noise ratio: 48 dB.

C.1.2 Performance requirements – colour cameras:

a) Resolution: 470 lines

b) Minimum illumination rating: 1.5 lux (using an f1.4 lens producing 25% video)

c) Signal-to-noise ratio: 48 dB.

C.2 Monitors

C.2.1 Performance baseline – cathode ray tube (CRT) monitors:

a) Type: monochrome only for outdoor use; monochrome or colour for on-train applications

b) Video input: 1.0 volt ± 3 dB composite video, hum rejection

c) Common mode rejection of input: >50 dB at 50/60 Hz

d) Common mode input signal range: <3 V pk-pk

e) Bandwidth: >10 MHz

f) Resolution > 800 horizontal TV lines

g) Linear distortion < 2%

h) Output luminance capability: > 400 cd.m-2

i) Additional features for platform monitors only: anti-reflective coated bonded front panel.

C.2.2 Performance baseline – thin-film transistor (TFT) monitors:

a) Type: monochrome or colour

b) Video input: 1.0 volt ± 3 dB composite video

c) Resolution greater than or equal to 1024 x 768 pixels

d) Output luminance capability: > 500 cd.m-2

e) Contrast ratio: > 500:1 (maximum output : no output)

f) Response time: < 30 ms

g) Viewing angle: >90° in both planes

h) Other considerations: anti-reflection screen.



RSSB Page 19 of 20


Definitions and abbreviations

CCTV

Closed circuit television.

CRT

Cathode ray tube.

CSDE

Correct side door enable.

DOO(P)

Driver only operated – passenger.

LCD

Liquid crystal display.

Luminance

The luminous flux density at a surface in a defined plane. The SI unit of luminance is the lux, which is equal to one lumen per square metre (lm.m-2).

Luminance uniformity ratio


Spatial uniformity

Light is distributed spatially in terms of brightness and contrast across a surface in a constant uniform manner.

Specular reflectance

Reflection in a sharply defined direction equal to the angle of incidence from a smooth interface between homogeneous materials, that is to say, obeying the Law of Reflection.

TFL

Transport for London.

TFT

Thin film transistor.

Train dispatch

Systems, equipment, procedures and instructions intended to ensure the safe departure of a train from a platform.

TVL

Television line.

Uniformity




Page 20 of 20 RSSB


References

The Catalogue of Railway Group Standards and the Railway Group Standards CD-ROM give the current issue number and status of documents published by RSSB. This information is also available from www.rgsonline.co.uk.

Documents referenced in the text

RGSC 01 The Railway Group Standards Code

Railway Group Standards

GE/RT8000 Rule Book


GE/RT8060 Engineering Requirements for Dispatch of Trains from Platforms

GE/RT8270 Assessment of Compatibility of Rolling Stock and Infrastructure



Other references

BS4800 Colour chart – Item 00A09

BS381C Colour chart – Shade 693

EN 0132-7 Rotakin’™ guide-lines



RIS-8060-CCS

Issue One

Date September 2017


Platforms

Annex C Amendments and Clarifications against GERT8060 issue two and GEGN8560 issue one




RIS-8060-CCS

Issue One

Date September 2017


Platforms

The following document has been published containing minor errors or ambiguities. These are listed

below with the amendment/clarification text. The changes will be incorporated into the document

during the next revision of the document (Ref: 8060 Iss 2 and 8560 Iss 1 AM001).

Amendment Clarification (For definitions see the Standards Manual - Part 2)

Document numbers GE/RT8060 GE/GN8560

Document issue nos.

Two One

Documents issue date

05 June 2010

Document titles Engineering Requirements for Dispatch of Trains from Platforms; Guidance on Engineering Requirements for Dispatch of Trains from Platforms

Clause number/ Document location

2.3.1.4, 2.4.1.4, 2.4.3.4 and the Definitions and abbreviations sections of both the Railway Group Standard and the Guidance Note.

Original text 2.3.1.4 The size, location and orientation of the mirrors shall be such that the driver is able to see the required image. The tolerance for achieving this shall be for trains stopped in the range ± 1.0 m from the marked train stop location.


2.4.3.4 The optical properties of the system shall be capable of transmitting a faithful rendition

of the viewed area.

Reason for Amendment

The consistency between the documents RIS-3703-TOM issue one, Rail Industry Standard for Passenger Train Dispatch and Platform Safety Measures, and GE/RT8060 and GE/GN8560 was reviewed in the 12 month review of GE/RT8060 issue two and GE/GN8560 issue one. Amendments to GE/RT8060 and its associated guidance note (GE/GN8560) were identified to replace the terms ‘required image’ and ‘viewed area’ with ‘dispatch corridor’ and cross reference a definition of dispatch corridor to RIS-3703-TOM. The amendment was approved by CCS SC on 22 September 2011.

Amendment text 2.3.1.4 The size, location and orientation of the mirrors shall be such that the driver is able to see the dispatch corridor. The tolerance for achieving this shall be for trains stopped in the range ± 1.0 m from the marked train stop location.

2.4.1.4 The size, location and orientation of the monitors shall be such that the driver or staff involved in train working is able to see the dispatch corridor. The tolerance for achieving this shall be ± 1.0 m from the marked train stop location.

2.4.3.4 The optical properties of the system shall be capable of transmitting a faithful rendition

of the dispatch corridor.

Addition to Definitions and abbreviations sections:

Dispatch corridor The corridor of space that must be visible in order to perform the train safety check (as set out in RIS-3703-TOM).



RIS-8060-CCS

Issue One

Date September 2017


Platforms

Definitions and References

Relevant definitions and references are given in Annexes A and B, and are not reproduced here.

