NR NR/L2/SIG/30009/E440 ISSUE 1 PDF

This specification applies to all signalling schemes and detailed design where subsidiary or independent shunt class routes (either permissive or non-permissive) are altered or introduced. This standard does not apply to call-on class routes.

Purpose

This section forms part of the Signalling Principles Handbook (NR/L2/SIG/30009) and is to be read in conjunction with the other modules of the handbook.

This section details Network Rail's policy on provision of overlaps for shunt class routes and comprises mandatory sections, statements of best practice (which shall be followed unless an alternative can be demonstrated to be beneficial to the company and no less safe), and guidance on historical practices (which are not to be applied to new works but provide information on previous standards or their interpretation).