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System Requirements and Integration GB Generic Requirements Suite

System Requirement & Integration (SR&I) is responsible for developing a suite of industry approved documents – called the GB DR Generic Requirements Suite.

This suite defines the requirements, safety elements, guidance and common operating rules that are needed to deliver digital railway systems which includes European Train Control System (ETCS), Traffic Management and Connected Driver Advisory System (C-DAS).

The suite provides a standard framework for anyone involved in a digital railway-related project, to make sure that different systems and processes are compatible and can be integrated to work safely and coherently together. This approach will save scheme developers time and money and increase efficiency and safety across Network Rail’s routes and regions.

The documents have been split up into the below folders;

Systems Engineering suite 

Describes how the railway that is using ETCS Level 2 (without lineside signals) and integrated Traffic Management interfaced with Connected Driver Advisory System (C-DAS) should operate, and the functional relationships between the constituent systems of the digital railway System of Systems (SoS). 

System Requirements suite 

Defines the standards and functionality which digital rail technologies and related equipment need to meet to be installed on the railway. 

Safety Management suite

Defines safety management for the operation and maintenance of digital railway technologies and related equipment on the railway. 

System Definition suite

Describes the overall structure of how the technology fits together, the functions it must provide, and how the boundaries work between geographies, Network Rail and operator systems. 

Operational Readiness and Deployment Guidance suite

Defines operational consistency to enable deployment projects to improve future implementation using established principles and lessons learned from previous projects and processes.  

Our documents

The table below provides the document titles, version numbers and what folder each document can be found.

Read our Baseline 4 release note here.

Document DescriptionCurrent Version NoDate of IssueFolder location
Business Continuity Plan2.416/07/20211. System Engineering Suite
Configuration Management Plan305/03/20191. System Engineering Suite
Data Management Plan3.614/09/20211. System Engineering Suite
ETCS Level-National Train Control Operational Concept1.204/03/20211. System Engineering Suite
ETCS Multiple Traction Configuration Operational Concept1.103/06/20211. System Engineering Suite
Guidance on the Telecoms Architecture2.222/06/20211. System Engineering Suite
Human Factors Management Plan2.221/01/20221. System Engineering Suite
Integrated Concept of Operations525/11/20211. System Engineering Suite
Interface Management Plan2.214/09/20211. System Engineering Suite
Interoperability Certification Plan4.220/07/20211. System Engineering Suite
Operations and Maintenance Readiness Plan226/06/20191. System Engineering Suite
Quality Management Plan418/06/20211. System Engineering Suite
System Management Plan9.607/07/20211. System Engineering Suite
System of Systems Architecture5.401/06/20211. System Engineering Suite
System of Systems Basis of Design3.307/06/20211. System Engineering Suite
System Sub-Programme Execution Plan2.213/05/20201. System Engineering Suite
Verification & Validation Plan2.116/03/20211. System Engineering Suite
Customer Requirements Acceptance Plan123/04/20182. System Requirements Suite
Customer Requirements Specification for Connected Driver Advisory System3.317/06/20212. System Requirements Suite
Customer Requirements Specification for ETCS Onboard415/10/20212. System Requirements Suite
Customer Requirements Specification for ETCS Trackside418/10/20212. System Requirements Suite
Customer Requirements Specification for Operations and Maintenance516/07/20212. System Requirements Suite
Customer Requirements Specification for Traffic Management Systems4.422/04/20212. System Requirements Suite
Data Architecture Design1.214/10/20212. System Requirements Suite
Digital Railway Requirements – C-DAS Infrastructure Manager Subsystem1.417/06/20212. System Requirements Suite
Digital Railway Requirements – C-DAS Railway Undertaking Subsystem1.417/06/20212. System Requirements Suite
Digital Railway Requirements – ETCS Onboard222/10/20212. System Requirements Suite
Digital Railway Requirements – ETCS Trackside222/10/20212. System Requirements Suite
Digital Railway Requirements – Traffic Management System3.422/04/20212. System Requirements Suite
Digital Railway Requirements for Operations and Maintenance301/10/20212. System Requirements Suite
Digital Technology Projects Requirements Management Plan2.901/11/20212. System Requirements Suite
ETCS – Baseline 3 – Operational Sub-system Verification, Validation, Requirements Matrix2.218/01/20222. System Requirements Suite
ETCS – Baseline 3 – System Verification, Validation, Requirements Matrix2.217/01/20222. System Requirements Suite
ETCS – Baseline 3 – Telecommunications Sub-system Verification, Validation, Requirements Matrix2.118/01/20222. System Requirements Suite
ETCS – Baseline 3 – Trackside Sub-system Verification, Validation, Requirements Matrix2.312/01/20222. System Requirements Suite
ETCS Operational Sub-System Requirements Specification303/09/20212. System Requirements Suite
ETCS System Requirements Specification503/09/20212. System Requirements Suite
ETCS Telecoms Sub-System Requirements Specification403/09/20212. System Requirements Suite
ETCS Test Yard3.323/02/20222. System Requirements Suite
ETCS Trackside Sub-System Requirements Specification303/09/20212. System Requirements Suite
ERTMS Reference Design Operational Test Scenario Index127/01/20222. System Requirements Suite
Digital Railway Requirements – C-DAS Infrastructure Manager Verification, Validation & Requirements Matrix 1.113/01/20222. System Requirements Suite
Digital Railway Requirements – C-DAS Railway Undertaking Verification, Validation & Requirements Matrix1.113/01/20222. System Requirements Suite
GB Generic C-DAS CRS Verification, Validation & Requirements Matrix1.113/01/20222. System Requirements Suite
GB Generic ETCS(T) CRS Verification, Validation & Requirements Matrix 2.119/01/20222. System Requirements Suite
GB Generic ETCS(O) CRS Verification, Validation & Requirements Matrix2.119/01/20222. System Requirements Suite
GB Generic O&M DRR Verification, Validation & Requirements Matrix227/01/20222. System Requirements Suite
GB Generic O&M CRS Verification, Validation & Requirements Matrix 228/01/20222. System Requirements Suite
GB Generic SoS CRS Verification, Validation & Requirements Matrix 1.214/01/20222. System Requirements Suite
GB Generic Traffic Management System CRS Verification, Validation & Requirements Matrix119/01/20222. System Requirements Suite
GB Generic Traffic Management System DRR Verification, Validation & Requirements Matrix119/01/20222. System Requirements Suite
Generic Outcome – Based Business Requirements for Digital Railway Technologies1.108/11/20182. System Requirements Suite
Integrated System – Maintenance Strategy1.206/04/20212. System Requirements Suite
Interface Customer Requirements Specification3.401/09/20212. System Requirements Suite
Interface Digital Railway Requirements1.313/09/20212. System Requirements Suite
Introduction to Requirements Structure1.330/07/20212. System Requirements Suite
Operations and Maintenance Rules and Standards Framework128/03/20192. System Requirements Suite
SR&I RAID log501/04/20212. System Requirements Suite
System Integration Plan3.113/12/20212. System Requirements Suite
System of Systems Significance of Change Assessment1.216/07/20212. System Requirements Suite
Systems of System Customer Requirements Specification5.409/11/20212. System Requirements Suite
Exported Requirements Specification for Timetabling1.230/10/20192. System Requirements Suite
Verification and Validation Report125/11/20212. System Requirements Suite
GB_OTS_A1_0012.717/11/20212. System Requirements Suite
GB_OTS_A2_0012.718/11/20212. System Requirements Suite
GB_OTS_A2_0022.626/11/20212. System Requirements Suite
GB_OTS_A2_0032.626/11/20212. System Requirements Suite
GB_OTS_A3_0011.629/11/20212. System Requirements Suite
GB_OTS_A3_0021.629/11/20212. System Requirements Suite
GB_OTS_CC2-2_0011.708/12/20212. System Requirements Suite
GB_OTS_CC2-2_0021.722/11/20212. System Requirements Suite
GB_OTS_CC2-2_0030.908/12/20212. System Requirements Suite
GB_OTS_CC2-2_0040.908/12/20212. System Requirements Suite
GB_OTS_E1_0011.425/02/20212. System Requirements Suite
GB_OTS_E3-1_0011.626/11/20212. System Requirements Suite
GB_OTS_E3-2_0011.626/11/20212. System Requirements Suite
GB_OTS_F1_0011.623/11/20212. System Requirements Suite
GB_OTS_F1_0021.623/11/20212. System Requirements Suite
GB_OTS_F1_0031.624/11/20212. System Requirements Suite
GB_OTS_F1_0041.623/11/20212. System Requirements Suite
GB_OTS_F1_0051.624/11/20212. System Requirements Suite
GB_OTS_F1_0061.624/11/20212. System Requirements Suite
GB_OTS_F1_0070.724/11/20212. System Requirements Suite
GB_OTS_F1_0080.224/11/20212. System Requirements Suite
GB_OTS_G1-1_0011.901/12/20212. System Requirements Suite
GB_OTS_G1-1_0021.901/12/20212. System Requirements Suite
GB_OTS_G1-1_0031.901/12/20212. System Requirements Suite
GB_OTS_G1-1_0041.701/12/20212. System Requirements Suite
GB_OTS_G1-1_0050.701/12/20212. System Requirements Suite
GB_OTS_G1-1_0060.201/12/20212. System Requirements Suite
GB_OTS_G1-1_0070.202/12/20212. System Requirements Suite
GB_OTS_G1-1_0080.302/12/20212. System Requirements Suite
GB_OTS_G1-2_0011.902/12/20212. System Requirements Suite
GB_OTS_G1-2_0021.907/12/20212. System Requirements Suite
GB_OTS_G1-3_0011.907/12/20212. System Requirements Suite
GB_OTS_G1-3_0020.307/12/20212. System Requirements Suite
GB_OTS_G1-4_0011.707/12/20212. System Requirements Suite
GB_OTS_G1-4_0021.707/12/20212. System Requirements Suite
GB_OTS_G6-1_0011.707/12/20212. System Requirements Suite
GB_OTS_G6-2_0011.707/12/20212. System Requirements Suite
GB_OTS_G6-2_0021.707/12/20212. System Requirements Suite
GB_OTS_G6-3_0011.707/12/20212. System Requirements Suite
GB_OTS_H1_0011.823/11/20212. System Requirements Suite
GB_OTS_J2_0011.724/11/20212. System Requirements Suite
GB_OTS_J3_0011.724/11/20212. System Requirements Suite
GB_OTS_J3_0021.724/11/20212. System Requirements Suite
GB_OTS_J3_0031.724/11/20212. System Requirements Suite
GB_OTS_J3_0041.725/11/20212. System Requirements Suite
GB_OTS_J3_0050.325/11/20212. System Requirements Suite
GB_OTS_J4_0011.725/11/20212. System Requirements Suite
GB_OTS_J4_0020.325/11/20212. System Requirements Suite
GB_OTS_J5_0011.725/11/20212. System Requirements Suite
GB_OTS_JJ9_0010.625/11/20212. System Requirements Suite
GB_OTS_K2_0011.401/12/20212. System Requirements Suite
GB_OTS_K2_0021.401/12/20212. System Requirements Suite
GB_OTS_KK_0011.407/12/20212. System Requirements Suite
GB_OTS_LL5_0012.618/11/20212. System Requirements Suite
GB_OTS_LL8_0012.618/11/20212. System Requirements Suite
GB_OTS_LL10_0012.618/11/20212. System Requirements Suite
GB_OTS_LL15_0012.618/11/20212. System Requirements Suite
GB_OTS_M1_0011.718/11/20212. System Requirements Suite
GB_OTS_M2_0011.718/11/20212. System Requirements Suite
GB_OTS_M3_0011.718/11/20212. System Requirements Suite
GB_OTS_N1-1_0012.525/11/20212. System Requirements Suite
GB_OTS_N1-1_0022.530/11/20212. System Requirements Suite
GB_OTS_N2-1_0012.420/11/20212. System Requirements Suite
GB_OTS_N2-1_0022.530/11/20212. System Requirements Suite
GB_OTS_N2-1_0032.530/11/20212. System Requirements Suite
GB_OTS_N2-1_0042.530/11/20212. System Requirements Suite
GB_OTS_N2-2_0012.430/11/20212. System Requirements Suite
GB_OTS_N2-2_0022.401/12/20212. System Requirements Suite
GB_OTS_O2_0011.707/12/20212. System Requirements Suite
GB_OTS_P1_0010.301/04/20212. System Requirements Suite
GB_OTS_P1_0020.301/04/20212. System Requirements Suite
GB_OTS_P2-1_0010.301/04/20212. System Requirements Suite
GB_OTS_P2-1_0020.301/04/20212. System Requirements Suite
GB_OTS_P3-1_0010.502/12/20212. System Requirements Suite
GB_OTS_P4_0010.502/12/20212. System Requirements Suite
GB_OTS_P4_0020.502/12/20212. System Requirements Suite
GB_OTS_S2-1_0010.223/11/20212. System Requirements Suite
GB_OTS_S2-2_0010.523/11/20212. System Requirements Suite
GB_OTS_U1_0010.618/11/20212. System Requirements Suite
GB_OTS_V1_0012.508/12/20212. System Requirements Suite
GB_OTS_V1_0032.508/12/20212. System Requirements Suite
GB_OTS_V1_0042.317/03/20212. System Requirements Suite
GB_OTS_V1_0052.508/12/20212. System Requirements Suite
GB_OTS_C1_0010.122/11/20212. System Requirements Suite
Topic A – Continuing Movement416/11/20212. System Requirements Suite
Topic AA – Consistent Provision of Lineside Signage5.106/12/20212. System Requirements Suite
Topic B – Operation in a Possession716/11/20212. System Requirements Suite
Topic C – End of Mission316/11/20212. System Requirements Suite
Topic CC – Utilisation of Packet 44 in ETCS Areas416/11/20212. System Requirements Suite
Topic D – Train Dispatch416/11/20212. System Requirements Suite
Topic E – Stopping at an EOA416/11/20212. System Requirements Suite
Topic EE – Key Management416/11/20212. System Requirements Suite
Topic F – Applying Speed Restrictions4.106/12/20212. System Requirements Suite
Topic G – Starting416/11/20212. System Requirements Suite
Topic H – Permissive Moves416/11/20212. System Requirements Suite
Topic HH – Train Maintenance and Testing516/11/20212. System Requirements Suite
Topic I – Attaching and Detaching416/11/20212. System Requirements Suite
Topic II – Balise Configuration Rules516/11/20212. System Requirements Suite
Topic J – Management of Requests to Stop Trains416/11/20212. System Requirements Suite
Topic JJ – Level Crossing Operation and Protection616/11/20212. System Requirements Suite
Topic K – Changing Driver ID and TRN416/11/20212. System Requirements Suite
Topic KK – Transmission of National Values416/11/20212. System Requirements Suite
Topic L – ETCS Pathway Locking and Release716/11/20212. System Requirements Suite
Topic LL – Use of Track Condition Functions716/11/20212. System Requirements Suite
Topic M – Neutral Sections, Traction Changeover and Pantograph Management616/11/20212. System Requirements Suite
Topic N – Entering ETCS425/11/20212. System Requirements Suite
Topic NN – Stopping Point Management216/02/20222. System Requirements Suite
Topic O – Exiting ETCS416/11/20212. System Requirements Suite
Topic OO – ATO Adhesion Management207/03/20222. System Requirements Suite
Topic P – Shunting116/11/20212. System Requirements Suite
Topic PP – Mid-Journey Transitions207/03/20222. System Requirements Suite
Topic QQ – Entering ATO207/03/20222. System Requirements Suite
Topic R – Boundaries516/11/20212. System Requirements Suite
Topic RR – Exiting ATO207/03/20222. System Requirements Suite
Topic S – Degraded and Abnormal Working616/11/20212. System Requirements Suite
Topic SS – Journey / Segment Profile207/03/20222. System Requirements Suite
Topic T – Inhibition of Transition616/11/20212. System Requirements Suite
Topic U – Pathway Controls for the Issue of Movement Authorities516/11/20212. System Requirements Suite
Topic V – Provision of Routing Information616/11/20212. System Requirements Suite
Topic W-Level NTC216/11/20212. System Requirements Suite
Topic X – Pathway Controls116/11/20212. System Requirements Suite
Topic Y – Miscellaneous5.106/12/20212. System Requirements Suite
Topic Z – Non Trackside316/11/20212. System Requirements Suite
Hazard Management Plan4.226/02/20213. Safety Management Suite
Health Safety and Environment Management Plan2.313/08/20213. Safety Management Suite
Level-National Train Control Safety Justification Report1.325/06/20213. Safety Management Suite
Multiple Traction Configuration Safety Justification Report1.425/03/20223. Safety Management Suite
Operation & Support Hazard Analysis7.306/08/20213. Safety Management Suite
Preliminary Hazard Analysis Report6.519/11/20213. Safety Management Suite
Reliability, Availability & Maintainability (RAM) Management Plan3.526/05/20213. Safety Management Suite
Review of Safety of National Braking Curves for Freight Trains4.322/02/20223. Safety Management Suite
Security Assurance Document426/03/20213. Safety Management Suite
System Assurance Plan426/02/20213. Safety Management Suite
System of Systems Functional Failure Analysis7.215/07/20213. Safety Management Suite
System of Systems Hazard Record Report7.129/04/20213. Safety Management Suite
System of Systems Hazard Record4.803/11/20213. Safety Management Suite
System of Systems Interface Hazard Analysis5.129/04/20213. Safety Management Suite
System Safety Plan6.119/04/20213. Safety Management Suite
C-DAS System Definition Document327/03/20194. System Definition Suite
ETCS Onboard System Definition Document420/11/20214. System Definition Suite
ETCS Trackside System Definition Document420/11/20214. System Definition Suite
Level NTC System Definition Document1.419/05/20214. System Definition Suite
System of Systems – System Definition Document6.328/04/20214. System Definition Suite
Traffic Management System Definition Document3.518/08/20214. System Definition Suite
Trailing Traction Operations727/10/20214. System Definition Suite
Data Specification3.315/10/20215. Operational Readiness and Deployment Guidance
ETCS – Deployment Guide401/12/20215. Operational Readiness and Deployment Guidance
ETCS Axle Load Categorisation Report326/01/20215. Operational Readiness and Deployment Guidance
ETCS Freight Braking Study Impact on Technical Running Times4.203/06/20215. Operational Readiness and Deployment Guidance
ETCS Speed Profiles Report526/01/20215. Operational Readiness and Deployment Guidance
Generic Requirements Suite – Deployment Policy3.502/09/20215. Operational Readiness and Deployment Guidance
Glossary of Terms & Abbreviations2.120/12/20215. Operational Readiness and Deployment Guidance
Human Factors Guidance for Deployment Projects1.228/04/20215. Operational Readiness and Deployment Guidance
Impact upon the freight driving task of ETCS configuration502/03/20225. Operational Readiness and Deployment Guidance
Integration Fundamentals Handbook3.213/12/20215. Operational Readiness and Deployment Guidance
Maintenance Framework3.101/04/20215. Operational Readiness and Deployment Guidance
Operation and Maintenance Readiness Handbook1.130/04/20215. Operational Readiness and Deployment Guidance
Traffic Management System Deployment Guide1.105/11/20215. Operational Readiness and Deployment Guidance
Efficient Authorisation Safe Integration Framework2.127/08/20206. Supporting Documents
ERTMS Reliability Specification-NR-AM-SA-SPE-00147711/07/20146. Supporting Documents
ERTMS-ETCS Proposed GB National Values213/11/20176. Supporting Documents
ETCS System Compatibility Checks Part 1 – Definition of ESC Types1.115/01/20206. Supporting Documents
ETCS System Compatibility Checks Part 3 – List of ESC Checks for ESC Type NR2 ‘Watton-at-Stone’114/01/20206. Supporting Documents
ETCS System Compatibility Checks Part 4 – List of ESC Checks for ESC Type NR3 ‘Thameslink’221/12/20216. Supporting Documents
ETCS System Compatibility Checks Part 5 – List of ESC Checks for ESC Type NR4 GW 012212/08/20216. Supporting Documents
ETCS System Compatibility Checks Part 6 – List of ESC Checks for ESC Type NR5 ‘Future Roll Out’114/01/20206. Supporting Documents
IMMG submission form129/03/20006. Supporting Documents
Notice Board 201 – Project Authorisation Strategies & System Definition128/04/20216. Supporting Documents
System Approval and Acceptance Plan2.215/08/20196. Supporting Documents
System Authority Issues Management Plan207/10/20196. Supporting Documents
System Authority Outline Requirements and Assurance Strategy2.105/11/20196. Supporting Documents
System Authority Technical Change Control114/03/20196. Supporting Documents
C-DAS Optimising Train Performance112/05/20207. System Architecture Visualisation
Concept of Operations112/05/20207. System Architecture Visualisation
ETCS Level 2 – Digital Signalling & Training Control112/05/20207. System Architecture Visualisation
System of Systems – Delivering a safe on-time railway112/05/20207. System Architecture Visualisation
TMS – Operate the Plan112/05/20207. System Architecture Visualisation

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