UIC 544-2

Railway Braking Force Estimation Methods

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
๐Ÿ‡ง๐Ÿ‡ช NBN EN 14531-1 ๐Ÿ‡ฉ๐Ÿ‡ช DIN EN 14531-1 ๐Ÿ‡ฌ๐Ÿ‡ง BS EN 14531-1 ๐Ÿ‡ซ๐Ÿ‡ท NF EN 14531-1 ๐Ÿ‡ฎ๐Ÿ‡น UNI EN 14531-1 ๐Ÿ‡ช๐Ÿ‡ธ UNE EN 14531-1 ๐Ÿ‡ณ๐Ÿ‡ฑ NEN EN 14531-1
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EBV-IgG Hepatitis C Toxoplasma IgG Streptococcus pneumoniae-Antigen Measurement + 3 more
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Pure Tone Audiometry Tympanometry Impression Taking Hearing Aid Fitting Hearing Aid Diagnostics and Adjustments + 3 more
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(HSG 248) โ€“ 2021 (PCM) based on HSG 248 D3TA2 based on HSG 248 D3TA8 based on HSG 248
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(HSG 264, 2012) Surveying for asbestos in premises
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(HSG 248) โ€“ 2021 staining based on HSG 248 SAC-SOP-15 based on HSG 248 SAC-SOP-07 based on HSG 248
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(HSG 248) โ€“ 2021 (PCM) based on HSG 248 DI/AN/ME/025 based on HSG 248 DI/AN/ME/001 based on HSG 248 DI/AN/ME/026 based on HSG 248
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UKAS 9301 Abergavenny, GB
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CFH-Gen, Macula-Degeneration (indirekter Coombstest), Titer, Direkter Hydraulic pressure (gauge) DC VOLTAGE AC CURRENT + 3 more
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UKAS 9157 Sheffield, GB
LENGTH ANGLE Depth Surface plates Plain plug gauges (parallel) + 3 more
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Ethanol Digoxin Cortisol Glucose AFP + 3 more
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Ethanol Digoxin HbA1c Cortisol Glucose + 3 more
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Ethanol Digoxin HbA1c Cortisol Glucose + 3 more
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Ethanol Cortisol Glucose Gentamicin Insulin + 3 more
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UKAS 9550 Doncaster, GB
Ethanol Digoxin Cortisol Glucose AFP + 3 more
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UKAS 8091 Western Bank, GB
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UKAS 9356 Sutton in Ashfield, GB
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UKAS 7915 Sutton in Ashfield, GB
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UKAS 1066 Leeds, GB
ISO DIN EN 1021-1 DIN EN 1021-2 BS 5852 BS 7177 + 3 more
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Industries

Railway rolling stock engineering and design Brake system manufacturers and integrators Railway fleet operators Rail vehicle certification authorities Transport safety and compliance consulting

Related Standards

  • UIC 544-1 Railway brakes โ€” Braking performance
  • UIC 541-01 Railway brakes โ€” Brake pads โ€” Part 1: Friction material specification
  • EN 14531-1 Railway applications โ€” Safety requirements for the design of rolling stock

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