This test measures dynamic forces between wheels and rails during actual on-track operation to evaluate vehicle stability, safety, and track loading characteristics. The test uses instrumented wheelsets and track-mounted sensors to quantify vertical, lateral, and longitudinal forces under various speeds and track conditions. Understanding wheel-rail dynamics is essential for preventing derailment, ensuring passenger safety, and predicting track maintenance requirements. Rolling stock manufacturers, railway operators, and infrastructure managers require this testing for vehicle certification and performance validation. ISO 17025 accreditation guarantees measurement accuracy, proper calibration, and adherence to international testing protocols critical for safe railway system operation.
What it measures
Vertical wheel-rail contact forces
Lateral force magnitudes and distributions
Longitudinal accelerations and braking forces
Derailment risk coefficients (Y/Q ratios)
Track loading effects and dynamic behavior
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DIN EN 14531-1
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BS EN 14531-1
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NF EN 14531-1
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UNI EN 14531-1
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UNE EN 14531-1
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NEN EN 14531-1
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DIN EN 15806
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BS EN 15806
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NF EN 15806
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UNI EN 15806
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UNE EN 15806
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NEN EN 15806
cartridges, based on HTM 20309.201 to 9.212 and BS EN ISO35 °C/3 days based on HTM 2030section 9.201 to 9.212, BS ENISO 15883-1:2009 6.4.2.3 and+ 3 more
Rolling stock manufacturers and designersRailway operators and train companiesRailway infrastructure operatorsVehicle safety and certification authoritiesTrack maintenance and engineering consultants
Related Standards
EN 14531-1Railway applications — Braking systems — Part 1: General terminology and calculations
EN 15806Railway applications — Traction effort and braking forces
EN 13848-1Railway applications — Track — Track geometry quality — Part 1: Characterization of track geometry
Scope