This document provides additional information to assist the understanding and the use of ISO 20138-1. The calculations in this document follow the same principles but they are slightly different.
This document contains country specific calculation approaches currently in use and represents the state of knowledge including for calculating:
— stopping and slowing distances;
— equivalent response time;
— brake performance;
— brake ratio.
Status: Under development
Technical Committee: ISO/TC 269/SC 2 Rolling stock