UIC 544-2 provides standardized calculation and estimation methods for determining braking force in railway rolling stock across different brake system types and operational scenarios. This technical standard defines mathematical models for translating brake system pressure, line force, and mechanical leverage into actual stopping power, accounting for variables such as wheel slip, temperature effects, and load conditions. The standard enables consistent performance prediction and certification across diverse European rail systems. Accreditation for this calculation methodology ensures reproducible, safety-critical engineering assessments used in rail fleet design and operational planning.
What it measures
Brake force calculation from system pressure and geometry
Adhesion coefficient effects on available braking force
Load-dependent braking force variations
Dynamic brake force response characteristics
Braking force distribution optimization
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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
requirements of HTM 01-06 Part E35 °C/3 days based on HTM 2030Part E, WHTM 01-06 Part E & BS ENISO 15883-4 using R2A andPart E, HTM 0106 Part E, WHTM 01-+ 3 more
Charpy impact test (ISO 148-1)Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32)1) In den CMC sind die erweiterten Messunichtselbsttätige+ 2 more
Railway rolling stock engineering and designBrake system manufacturers and integratorsRailway fleet operatorsRail vehicle certification authoritiesTransport safety and compliance consulting
Related Standards
UIC 544-1Railway brakes — Braking performance
UIC 541-01Railway brakes — Brake pads — Part 1: Friction material specification
EN 14531-1Railway applications — Safety requirements for the design of rolling stock
Scope