scope:

This document should apply to any signalling scheme that has been designated a "Modular Signalling scheme" by the Professional Head, Signals and Controls and the Head of Operations Development.

Such schemes will make use of Modular Signalling principles, technology and processes, which are fundamentally different from those used for a conventional resignalling scheme undertaken by Network Rail.

Purpose

This guidance document contains guidance on how certain features of a Modular Signalling scheme should be designed, illustrating certain of the application instructions set out in the Modular Signalling Handbook Appendix C "System Functionality" document.

Adoption of the guidance given in this document can achieve a consistent design approach and minimises implementation costs by avoiding changes to standard design templates.

This document is divided into the same sections as Modular Signalling Handbook Appendix C.