Lineside Signals, Indicators and Layout of Signals - …

1 Railway Group Standard GK/RT0045 Issue Four Date December 2014 Lineside Signals , Indicators and Layout of Signals Synopsis This document defines the configuration and Layout of Lineside signalling equipment that is used to convey information to infrastructure managers operating stations, and railway undertaking personnel. 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.

2 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, 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 Standards may be reproduced. Published by: rssb Block 2 Angel Square 1 Torrens Street London EC1V 1NY Copyright 2014 Rail Safety and Standards Board Limited Uncontrolled When Printed Document comes into force and supersedes GKRT0045 Iss 3 as of 07/03/2015 Superseded in part by GKRT0045 Iss 5 and in part by RIS-0737-CCS Iss 1 with effect from 03/09/2016 Page 2 of 40 rssb Railway Group Standard GK/RT0045 Issue Four Date December 2014 Lineside Signals .

3 Indicators and Layout of Signals Issue record Issue Date Comments One 06 February 2010 Original document Two 03 March 2012 Replaces issue one Small scale change amendment to GK/RT0045 issue two necessitated by revision of and to permit the use of a bar of light or a line of five lunar white light points to display the indication of route Clauses , , , and relating to identity of Signals and Indicators were removed from GK/RT0045 issue two as these were transferred to GK/RT0009 issue four which was published in June 2011 Three 01 December 2012 Replaces issue two Small scale change amendment to clause ) to allow the use of the X alphanumeric route indicator to additionally denote a movement along a bi-directional line in the opposite direction to the normal flow of traffic Four December 2014 Replaces issue three Revisions associated with the publication of GK/RT0057 issue one and GK/RT0058 issue one Withdrawal of requirements for passable stop Signals that are not designated as intermediate block home Signals Amended or additional parts and/or sections of revised pages have been marked by a vertical black line in the adjacent margin.

4 Superseded documents The following Railway Group Standard is superseded, either in whole or in part as indicated: Superseded documents Sections superseded Date when sections are superseded GK/RT0045, issue three, Lineside Signals , Indicators and Layout of Signals All 07 March 2015 GK/RT0045, issue three, Lineside Signals , Indicators and Layout of Signals , ceases to be in force and is withdrawn as of 07 March 2015. Supply The authoritative version of this document is available at 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 Other Standards and associated documents can also be viewed at Uncontrolled When Printed Document comes into force and supersedes GKRT0045 Iss 3 as of 07/03/2015 Superseded in part by GKRT0045 Iss 5 and in part by RIS-0737-CCS Iss 1 with effect from 03/09/2016 rssb Page 3 of 40 Railway Group Standard GK/RT0045 Issue Four Date December 2014 Lineside Signals .

5 Indicators and Layout of Signals Contents Section Description Page Part 1 Purpose and Introduction 5 Purpose 5 Introduction 5 Approval and authorisation of this document 6 Part 2 Application of Lineside Signalling Equipment 7 Display of operational information using the signalling system 7 Lineside signal and indicator configuration requirements 7 Part 3 Layout of Signals : Requirements for Stop Signals 11 Provision of stop Signals and signalling Indicators 11 Part 4 Layout of Signals : Aspect Sequences 15 Requirements for cautionary aspect sequences 15 Requirements for banner repeating signal aspects 20 Part 5 Layout of Signals : Junction Signalling 21 Requirements for route indications 21 Junction signalling: colour light signal aspect sequences 23 Junction signalling: semaphore signal aspect sequences 28 Junction signalling: AWS requirements 28 Junction signalling: prohibited aspects 28 Part 6 Layout of Signals .

6 Bi-directional Signalling 30 Bi-directional signalling 30 Part 7 Degraded Signalling 31 Degraded colour light signalling 31 Part 8 Application of this document 32 Application - infrastructure managers 32 Application - railway undertakings 33 Health and safety responsibilities 33 Appendices Appendix A Positioning Criteria for Stop Signals on Electrified Lines 34 Tables Table 1 Methods of junction signalling 23 Table 2 Speed ranges for flashing aspect sequences 24 Uncontrolled When Printed Document comes into force and supersedes GKRT0045 Iss 3 as of 07/03/2015 Superseded in part by GKRT0045 Iss 5 and in part by RIS-0737-CCS Iss 1 with effect from 03/09/2016 Page 4 of 40 rssb Railway Group Standard GK/RT0045 Issue Four Date December 2014 Lineside Signals , Indicators and Layout of Signals Figures Figure 1 Example of a 4-aspect colour light splitting distant signal (left-hand divergence)

7 Mounted on the left-hand side of the line 7 Figure 2 Example of a 3-aspect to 4-aspect transition using transition method 1 17 Figure 3 Example of a 3-aspect to 4-aspect transition using transition method 2 17 Figure 4 Example of a 3-aspect to 4-aspect transition using transition method 3 18 Definitions 37 Abbreviations and acronyms 39 References 40 Uncontrolled When Printed Document comes into force and supersedes GKRT0045 Iss 3 as of 07/03/2015 Superseded in part by GKRT0045 Iss 5 and in part by RIS-0737-CCS Iss 1 with effect from 03/09/2016 rssb Page 5 of 40 Railway Group Standard GK/RT0045 Issue Four Date December 2014 Lineside Signals , Indicators and Layout of Signals Part 1 Purpose and Introduction Purpose The purpose of this document is to specify the application of Lineside signalling equipment that is used to convey information to infrastructure managers at stations and railway undertaking personnel.

8 This document mandates the requirements for: a) Certain configuration requirements for Lineside Signals and Indicators . b) The criteria for positioning Signals within the Layout . c) The permitted type(s) of Lineside signal and their application constraints. d) The permitted sequences of signal aspects and indications displayed to drivers. This document is applicable to areas where train movements are controlled using Lineside signalling. This document includes some requirements applicable to areas where train movements are controlled using the European Rail Traffic Management System (ERTMS) Level 2 without Lineside Signals . Where this is the case, the particular applicability to ERTMS is described in the applicable clause(s). Introduction Background The operational meanings of signal aspects and indications are set out in Information Handbook RS/521.

9 The Layout of signalling equipment is specified so that, when train movements take place, drivers are given sufficient and appropriate movement authority information. Related requirements in other documents The following Railway Group Standards contain requirements that are relevant to the scope of this document: GC/RT5021 Track System Requirements GE/RT8000 Rule Book GE/RT8037 signal Position and Visibility GE/RT8071 Proceed-on-Sight Authorities GE/RT8075 AWS and TPWS Interface Requirements GK/RT0044 Controls for Signalling a Train onto an Occupied Line GK/RT0057 Lineside signal and indicator Product Design and Assessment Requirements [in preparation, will replace some parts of GK/RT0045] GK/RT0058 Lineside signal Aspect and Indication Requirements [in preparation, will replace some parts of GK/RT0045]

10 Uncontrolled When Printed Document comes into force and supersedes GKRT0045 Iss 3 as of 07/03/2015 Superseded in part by GKRT0045 Iss 5 and in part by RIS-0737-CCS Iss 1 with effect from 03/09/2016 Page 6 of 40 rssb Railway Group Standard GK/RT0045 Issue Four Date December 2014 Lineside Signals , Indicators and Layout of Signals GK/RT0075 Lineside signal Spacing and Speed Signage GO/RT3215 Requirements for the Weekly Operating Notice, Periodical Operating Notice and Sectional Appendix Supporting documents The following Railway Group documents support this Railway Group Standard: GK/GN0645 Guidance on Lineside Signals , Indicators and Layout of Signals Approval and authorisation of this document The content of this document was approved by Control Command and Signalling (CCS) Standards Committee on 16 October 2014.