GCRT5021 Iss 6

This document sets out Great Britain (GB) requirements in scope of the national technical rules for track geometry, track systems and track components to provide for the safe guidance and support of rail vehicles.

GCRT5021 provides rationale and guidance to support requirements. Part 2, Part 3 and Part 4 have all been revised to include rationale and guidance. Section 2.8 regarding sidings has been removed and the requirements have been incorporated in the relevant sections of Part 2. Sections 4.1, 4.2, 4.3, and 4.5 of Part 4 have been withdrawn and moved to RIS-7707-INS, which provides infrastructure requirements and guidance for S&C. Appendices A-H have been withdrawn as guidance is now included with requirements.

29/05/2025 - At its meeting in May 2025, INS SC approved the recommendation for a point release once the extended work on COF-UOH-59 is complete.

Optional reading and resources:

Standards quarterly webinar - December 2023