The new UNE-EN 13231-1 specifies the technical requirements and tolerances for the acceptance of works on ballasted track in plain line, switches and movement joints as part of the track for railways with a track width of 1435 mm or higher.
Works carried out on ballasted track refers to the construction of a new track, and track reconditioning and maintenance.
This document defines the requirements for work on the infrastructure, geometry, absolute position, the parameters of the machines working on the track, and it specifies the responsibilities and documentation needed to accept work on the track and the conformity of all the track materials with the applicable reception criteria of the customer and specifications provided by the supplier, among other requirements.
To aid in its implementation, it includes three extensive Annexes, including Annex A (Regulatory) on measurement systems: Requirements of the documentation.