PD ISO/TR 8955:2025

Railway infrastructure. Track quality evaluation. Chord-based method. | Status: Current

1 Scope 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.