本标准描述了机车、货运、客运和基础设施维护机车车辆的动态性能要求，以降低脱轨风险，并降低基础设施加速退化的可能性。

This Standard describes the dynamic behaviour requirements for locomotive, freight, passenger and infrastructure maintenance rolling stock to reduce the risk of derailment as well as to reduce the likelihood of accelerated degradation of the infrastructure.