This European Standard specifies test requirements for the braking of vehicles for urban transport systems, running on steel or rubber tyred wheels and guided by steel rails or other equivalent means. This standard applies to vehicles operating on: tramways; light railways; metros on steel wheels; metros on rubber tyred wheels; commuter/regional railways; and is applicable to: all newly designed vehicles; all major refurbishments, if these include either redesign or extensive modifications to the brake system; any new builds of existing designs of vehicles.