scope:

This Module applies to all Projects to alter, or with the potential to affect the fitness for purpose of, Network Rail's infrastructure that meet the selection criteria defined in NR/L3/SIG/10064 NR/GI/T001 (Testing - General) for testing to NR/L2/SIG/30014.

The inclusions and exclusions documented in NR/L2/SIG/30014/A110 also apply to the scope of this Module.

Purpose

This Module is part of the suite of documents contained within the Signalling Works Testing Handbook, NR/L2/SIG/30014, which together detail the requirements for signalling works testing activities.

It provides the background to the Signalling Works Testing Handbook, comprising the historical context and the current context to the application of this handbook. 

An introduction to / summary of the following is provided: 

• The Network Rail Assurance Process; 

• British Standards BS EN 50126 , BS EN 50128 and BS EN 50129; 

• The V&V of Signalling Works Projects. 

It provides information about how the application of Signalling Works Testing Handbook contributes to the Verification and Validation demonstration required during a Project's lifecycle. 

This Module also contains Signalling Works Testing requirements and guidance for Projects where elements / situations which are outside of the scope of the published Test Specifications, and the supplementary NR/L2/SIG/30014/F000 chapters, and for Projects applying British Standards BS EN 50126 , BS EN 50128 and BS EN50129.