Uncontrolled when printed Document supersedes GERT8408 Iss 1 and GEGN8608 Iss 1 with effect from 02/09/2017 Rail Industry Standard RIS-0708-CCS Issue: One Date: September 2017 ERTMS/ETCS National Values Synopsis This document contains requirements and guidance for a process to determine or revise a set of values of ERTMS/ETCS National Values. 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 Uncontrolled when printed Document supersedes GERT8408 Iss 1 and GEGN8608 Iss 1 with effect from 02/09/2017 Rail Industry Standard ERTMS/ETCS National Values RIS-0708-CCS Issue: One Date: September 2017 Issue Record Issue Date Comments One 02/09/2017 Original document. To include additional National Values from ERTMS Baseline 3 This document will be updated when necessary by distribution of a complete replacement. Superseded Documents The following Railway Group documents are superseded, either in whole or in part as indicated: Superseded documents Sections superseded Date when sections are superseded GERT8408 issue one ERTMS/ETCS All 02/09/2017 National Values GEGN8608 issue one Guidance on All 02/09/2017 ERTMS/ETCS National Values Supply The authoritative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]. Page 2 of 74 RSSB Uncontrolled when printed Document supersedes GERT8408 Iss 1 and GEGN8608 Iss 1 with effect from 02/09/2017 ERTMS/ETCS National Values Rail Industry Standard RIS-0708-CCS Issue: One Date: September 2017 Contents Part 1 Purpose and Introduction 7 1.1 Purpose 7 1.2 Context 7 1.3 Application of this document 8 1.4 Health and safety responsibilities 8 1.5 Structure of this document 8 1.6 Approval and Authorisation 8 Part 2 Requirements for ERTMS/ETCS National Values 9 2.1 Proposal of a set of ERTMS/ETCS National Values 9 2.2 Consultation on the proposed ERTMS/ETCS National Values 9 2.3 Consultation response on the proposed ERTMS/ETCS National Values 10 2.4 Optimising National Values 10 2.5 Publishing National Values 10 Appendices 11 Appendix A 11 Definitions 68 References 74 RSSB Page 3 of 74 Uncontrolled when printed Document supersedes GERT8408 Iss 1 and GEGN8608 Iss 1 with effect from 02/09/2017 Rail Industry Standard ERTMS/ETCS National Values RIS-0708-CCS Issue: One Date: September 2017 List of Figures Figure 1: Confidence interval of a ETCS fitted train 33 Figure 2: Chart demonstrating, by simplifying the curves as straight lines as an example, the shape of the resultant Permitted speed curve 35 Figure 3: High level schematic diagram of the processing of braking curves 36 Figure 4: Schematic diagram of how braking curves are derived 38 Figure 5: Comparison of where the 'hook' is shown if GUI curve is enabled. 41 Figure 6: Comparison of the position of the 'hook' if Q_NVSBFBPERM is enabled 42 Figure 7: Comparison of the position of the 'hook' if Q_NVINHSMICPERM is enabled 44 Figure 8: Demonstration of how A_NVMAXREDADH derates EBD and increases braking distance 46 Figure 9: DMI with TI initiated 47 Figure 10: DMI with TTI initiated 48 Figure 11: An example of a four steps Kv_int 58 Figure 12: Four steps Kv_int models 58 Figure 13: Process of extracting Kv_int 61 Figure 14: An example of a set of M_KRINT correction factors with five steps 65 Page 4 of 74 RSSB Uncontrolled when printed Document supersedes GERT8408 Iss 1 and GEGN8608 Iss 1 with effect from 02/09/2017 ERTMS/ETCS National Values Rail Industry Standard RIS-0708-CCS Issue: One Date: September 2017 List of Tables Table 1: Q_NVDRIVER_ADHES 11 Table 2: V_NVSHUNT 13 Table 3: V_NVSTFF 13 Table 4: V_NVONSIGHT 14 Table 5: V_NVSUPOVTRP 14 Table 6: V_NVUNFIT 17 Table 7: V_NVLIMSUPERV 18 Table 8: V_NVREL 19 Table 9: D_NVROLL 20 Table 10: V_NVALLOWOVTRP 22 Table 11: D_NVOVTRP 23 Table 12: T_NVOVTRP 24 Table 13: M_NVDERUN 26 Table 14: M_NVCONTACT 27 Table 15: T_NVCONTACT 27 Table 16: D_NVPOTRP 29 Table 17: D_NVSTFF 31 Table 18: Q_NVLOCACC 32 Table 19: Q_NVGUIPERM 40 Table 20: Q_NVSBFBPERM 41 Table 21: Q_NVINHSMICPERM 43 Table 22: A_NVMAXREDADH1/2/3 45 Table 23: Q_NVSRBKTRG 49 Table 24: Q_NVSBTSMPERM 50 Table 25: Q_NVEMRRLS 50 Table 26: M_NVEBCL 52 Table 27: M_NVAVADH 54 RSSB Page 5 of 74 Uncontrolled when printed Document supersedes GERT8408 Iss 1 and GEGN8608 Iss 1 with effect from 02/09/2017 Rail Industry Standard ERTMS/ETCS National Values RIS-0708-CCS Issue: One Date: September 2017 Table 28: V_NVKVINT 56 Table 29: Q_NVKVINTSET 56 Table 30: M_NVKVINT 57 Table 31: A_NVP12 59 Table 32: A_NVP23 60 Table 33: Comparison of how A_NVP12, A_NVP23, Kv_int_x_a and Kv_int_x_b affects the outcome (all values are in relative terms) 62 Table 34: L_NVKRINT 63 Table 35: M_NVKRINT 64 Table 36: M_NVKTINT 66 Page 6 of 74 RSSB Uncontrolled when printed Document supersedes GERT8408 Iss 1 and GEGN8608 Iss 1 with effect from 02/09/2017 ERTMS/ETCS National Values Rail Industry Standard RIS-0708-CCS Issue: One Date: September 2017 Part 1 Purpose and Introduction 1.1 Purpose 1.1.1 This document is a standard on ERTMS/ETCS National Values, for members of RSSB to use if they so choose. 1.1.2 This document contains requirements for a process to determine or revise European Rail Traffic Management System (ERTMS) / European Train Control System (ETCS) National Values within a set. 1.1.3 Guidance is provided as a series of sequentially numbered clauses prefixed ‘G’ immediately below each requirement. Where there is no guidance, this is stated. 1.1.4 The process set out in this document is applicable to ETCS fitted infrastructure irrespective of whether or not ERTMS-fitted trains operate on that infrastructure. 1.1.5 ERTMS/ETCS National Values, determined in accordance with the process set out in this document, describes asset characteristics that are relevant to compatibility between ERTMS-fitted trains and trackside infrastructure. 1.1.6 This standard is applicable to all three ETCS Baselines legal at the time of publication: Baseline 2, Baseline 3 Maintenance Release 1, and Baseline 3 Release 2, as specified in the Control Command and Signalling Technical Specification for Interoperability (CCS TSI). 1.1.7 Details on all the ERTMS/ETCS National Values are set out in the Appendix. 1.2 Context 1.2.1 ERTMS/ETCS National Values are parameters in the ETCS system, described in ERTMS subset-026, Systems Requirements Specification (SRS). 1.2.2 A set of ERTMS/ETCS National Values applies to a ‘National Area’. A National Area is a geographic region and does not necessarily align to political borders. ‘National’ in this context means determined at the national level, not necessarily applying throughout a whole nation. 1.2.3 The values are set as part of the infrastructure design to configure the behaviour of an ERTMS/ETCS application to be compatible with the operational and technical practices of a particular geographic region, for example, the maximum speeds permitted under different modes of operation. 1.2.4 National Values are configured by the infrastructure manager (IM) and coded within the trackside infrastructure, that is, Eurobalises and Radio Block Centres (RBCs). The values are sent to trains operating in the geographic region to which they apply and they cause the ETCS onboard to function in a way consistent with the infrastructure. 1.2.5 The SRS describes the National Values and details the range of values, it also specifies a default value for the ETCS onboard to use when the National Values for the geographic region that it is operating in are not available. This information is replicated in the Appendix. 1.2.6 Because the ERTMS/ETCS National Values are part of the trackside design, an IM needs to determine a set of values that are suitable for a geographic region. By the nature of National Values, this will affect the performance of ETCS fitted trains operating on that infrastructure. Therefore, it is considered advantageous to have an industry-agreed method of proposing, evaluating, agreeing and making available new sets, or revising existing sets, of National Values. This standard fulfils that purpose. RSSB Page 7 of 74 Uncontrolled when printed Document supersedes GERT8408 Iss 1 and GEGN8608 Iss 1 with effect from 02/09/2017 Rail Industry Standard ERTMS/ETCS National Values RIS-0708-CCS Issue: One Date: September 2017 1.2.7 This standard requires the IM who is introducing or revising the National Values to engage in consultation with neighbouring IMs and RUs who may be affected by the new National Values. The objective is to achieve harmonised operational practices across geographic regions. 1.2.8 This standard does not recommend specific values as National Values, but it does provide information to assist in determining a set of values, or evaluating the impact of a set of values.