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ISO 24675-2:2026Published

Railway applications — Running time calculation for timetabling — Part 2: Distance-speed diagrams and speed curves

Applications ferroviaires — Calcul des temps de parcours pour la construction des horaires — Partie 2: Diagrammes distance-vitesse et diagrammes de vitesse

Abstract / scope

This document specifies a practical procedure to create and verify distance-speed diagrams and speed curves using the parameters specified in ISO 24675-1, from which the shortest running time for railway timetabling is obtained by numerically integrating the speed curves.

This document excludes running time calculation used for purposes other than timetabling.