Applications ferroviaires — Qualité géométrique de la voie — Méthode sur la base du cordeau

This document describes the relationship between an inertial measurement system and a chord measurement system applying the chord-based method with different chord length and chord division.

This document is applicable to 1 435 mm and wider track gauges. This document does not apply to urban/light rail systems, tramways and any track gauge narrower than 1 435 mm.