GMRT2141 Iss 4

This document sets out requirements for railway vehicles regarding permissible track forces, derailment resistance and resistance to roll-over due to overspeed.

Amended to align with EU Rolling Stock TSIs. Merges GMRT2141 issue three ‘Resistance of Railway Vehicles to Derailment and Roll-Over’, with GMTT0088 issue one ‘Permissible Track Forces for Railway Vehicle’ and GMRC2513 issue one ‘Commentary on Permissible Track Forces for Railway Vehicles’. Includes new requirements for testing to demonstrate that vehicles are not susceptible to cyclic top and for testing ISO container carrying vehicles in offset load conditions. The requirement to manage the risk of vehicle rollover as a result of overspeed on curves changed from a 21° roll-over limit for non-tilting passenger trains to 18°. The requirement for the wheel load to wheel diameter (Q/D) limit has increased from 0.13 to 0.17.