This standard:
? defines the various profiles needed to install, verify and maintain the various structures near the structure
gauge;
? lists the various phenomena to be taken into account to determine the structure gauge;
? defines a methodology that may be used to calculate the various profiles from these phenomena;
? lists the rules to determine the distance between the track centres;
? lists the rules to be complied with when building the platforms;
? lists the rules to determine the pantograph gauge;
? lists the formulae needed to calculate the structure gauges in the catalogue.