EN 14531-1:2015

European foreword
Introduction
1 Scope
2 Normative references
3 Definitions, symbols and abbreviations
4 Stopping and slowing distances calculation
5 Immobilization brake calculation
Annex A (informative) - Workflow of stopping and
        slowing distance calculation method
Annex B (informative) - Workflow of immobilization
        calculations
Annex C (informative) - Brake equipment type example
        calculations
Annex D (informative) - Train stopping distance and
        immobilization brake calculation example
Annex E (informative) - Development of the formula for
        the mean brake force with respect to the braking
        distance
Annex F (informative) - Slowing or stopping distance
        calculation using alternative method of
        equivalent response time calculation as French
        Railway requirements in particular for trains operating
        in 'G' position
Annex ZA (informative) - Relationship between this
         European Standard and the Essential
         Requirements of EU Directive 2008/57/EC
Bibliography

This European Standard describes general algorithms for the brake performance calculations to be used for all types of train sets, units or single vehicles, including high speed, locomotive and passenger coaches, conventional vehicles and wagons.This European Standard does not specify the performance requirements. It enables the estimation and/or comparison by calculation of the various aspects of the performance: stopping or slowing distances, dissipated energy, power, force calculations and immobilization braking.If it is required to validate, verify or assess braking performance it is recommended that a more detailed calculation is performed in accordance with FprEN 14531-2, i.e. a step by step calculation.This European Standard contains generic examples of the calculation of brake forces for individual brake equipment types and calculation of stopping distance and immobilization braking relevant to a train (see Annexes C and D).