UIC 505-1

Railway Vehicle Gauge Limits and Clearances

This test method establishes the maximum permissible dimensions and clearance gauges for railway rolling stock to ensure safe passage through railway infrastructure, stations, and tunnels across European rail networks. It defines the envelope within which vehicles must fit to prevent collision with track infrastructure, platforms, and fixed installations. Compliance verification is critical for manufacturers, infrastructure operators, and interoperability authorities to maintain operational safety and network compatibility. Accredited testing ensures objective measurement of vehicle dimensions and systematic verification against gauge requirements, preventing costly delays and safety incidents.

What it measures

Vehicle overall width and height envelope
Side clearance from track centerline
Bogie and wheelset overhang dimensions
Buffer and coupling heights
Interior and exterior protrusion limits

🇩🇪 DIN EN 15273-1 🇬🇧 BS EN 15273-1 🇫🇷 NF EN 15273-1 🇮🇹 UNI EN 15273-1 🇪🇸 UNE EN 15273-1 🇳🇱 NEN EN 15273-1

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TÜV SÜD Hong Kong

DAkkS D-PL-11104-01-02 000000 Hong Kong S.A.R., HK

ISO 14389 DIN EN 14389 BS EN ISO 14362-1 BS EN ISO 14362-3 ISO 17234-1 + 3 more

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UIC 505-2 Railway vehicles — gauge limits — Part 2: Detailed geometric requirements for coaches
EN 15273-1 Railway applications — Gauges — Part 1: General — Definitions and gauges of vehicles
UIC 506 Railway vehicles — couplings — Mechanical coupling devices