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The science of ensuring that trains do not come into contact with either the infrastructure or with other trains
The principles behind gauging are contained in GE/RT8270 Assessment of compatibility of rolling stock and infrastructure.
Gauging is a major industry interface and is part of the system that ensures that the various industry disciplines remain compatible to each other whilst safely operating the railway. It is nominally simple but gets complicated in the detail; seemingly insignificant changes to one discipline can have major and expensive implications to another discipline.
Network Rail, V/S SIC, the RSSB and ATOC have prepared various documents to guide industry users through this detail.
The use of standard gauges for non-passenger rail vehiclesGauging guide for passenger rolling stockATOC guide to vehicle changeData to be provided to railway group membersTrack for gauging files
The following standards can be downloaded from the RSSB website:
GE/RT8270 - Assessment of compatibility of rolling stock and infrastructureGC/RT5212 - Requirements for defining and maintaining clearancesGM/RT2149 - Requirements for defining and maintaining the size of railway vehiclesGE/RT8073 - Requirements for the application of standard vehicle gaugesGE/GN8573 - Guidance on gauging
For further information please contact either of the following:firstname.lastname@example.org@networkrail.co.uk