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
🇧🇪 NBN EN 14531-1 🇩🇪 DIN EN 14531-1 🇬🇧 BS EN 14531-1 🇫🇷 NF EN 14531-1 🇮🇹 UNI EN 14531-1 🇪🇸 UNE EN 14531-1 🇳🇱 NEN EN 14531-1
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21 Countries

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UKAS 8043 Westbury on Trym, GB
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Cryptococcus neoformans Hepatitis B-e-Antigen Linezolid Mumps IgG Coronavirus 229E + 3 more
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Streptococcus pneumoniae Enterobacteriaceae Hepatitis-B-surface-Antigen Hepatitis B-e-Antigen Adenovirus + 3 more
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ISO 4832 ISO 11731 DIN EN ISO 4833-2 ISO 16649-2 ISO 11290-2 + 3 more
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agents provided by associated for the pu agents provided by associated for the pu agents provided by associated for the pu agents provided by associated intended f agents provided by associated intended f + 3 more
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IEC 61000-4-2: 2008 IEC 61000-4-3: 2006 IEC 61000-4-4: 2012 IEC 61000-4-5: 2005 IEC 61000-4-6: 2013 + 3 more
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DAkkS D-PL-19381-01-02 Neu-Isenburg, DE
IEC 61000-4-2: 2008 IEC 61000-4-4: 2012 IEC 61000-4-5: 2005 IEC 61000-4-6: 2013 IEC 61000-4-8: 2009 + 3 more
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DAkkS D-PL-11095-02-00 Neu-Ulm, DE
ISO 14708-1 ISO 14708-7 DIN EN ISO 11737-2 DIN EN ISO 17141 DIN EN ISO 17405 + 3 more
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ACCREDIA 00999 Carugate, IT
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RvA L662 'S-Gravenhage, NL
IEC 15408-1 IEC 18045
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ACCREDIA 00908 Piazzola sul Brenta, IT
DIN EN ISO 4833-1 DIN EN ISO 6579-1 DIN EN ISO 6888-2 DIN EN ISO 17141 ISO 11731 + 3 more
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ACCREDIA 00200 Ranica, IT
DIN EN 27888 DIN EN ISO 17294-2 ISO 11731 DIN EN 17892 DIN EN ISO 10304-4 + 3 more
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DAkkS D-K-19403-01-00 Grävenwiesbach, DE
0,1 pF Messschieber für 0 mm Außen-, Innen- und Bügelmessschrauben 0 mm Feinzeiger + 3 more
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ENAC LC10.082 Legutiano, ES
CEM DI-012 CEM DI-008 CEM DI-021 CEM DI-005 UNE-EN ISO 10360-2 + 3 more
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ACCREDIA 00328 Verona, IT
DIN EN ISO 4120 DIN EN ISO 17294-2 BS EN ISO 17294-2 DIN EN ISO 13299 ISO 13299 + 3 more
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ENAC LE178 Madrid, ES
UNE-EN 60947-5-1 UNE-EN 81-1 UNE-EN 81-2 UNE-EN 81-50 UNE-EN 81-20 + 3 more
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ENAC LE2485 Girona, ES
UNE-EN ISO 10523 UNE EN 27888 UNE-EN 872 UNE-EN ISO 6878 UNE-EN 25663 + 3 more
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DAkkS D-PL-18334-01-02 Stendal, DE
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ENAC LE775 Zamudio, ES
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DAkkS D-K-15071-01-00 Otzberg-Lengfeld, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO elektronische Waagen − Waagen nichtselbsttätige
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UKAS 10209 Belfast, GB
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ACCREDIA 01074 Perugia, IT
DIN EN ISO 10304-1 DIN EN ISO 17294-2 DIN EN 1484 VDE 414-9-11 ISO 11731 + 3 more
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DAkkS D-PL-14312-01-00 Münster, DE
ISO 21527-2 DIN ISO 16649-2 DIN EN ISO 22964 DIN EN ISO 16212 DIN EN ISO 18416 + 3 more
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RvA M295 Amsterdam, NL
Immunoflowcytometrie Hemocytometrie en microscopie Beenmergonderzoek Bloedafname (extra-muraal) Bloedafname (intra-muraal) + 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 — Braking performance
  • UIC 541-01 Railway brakes — Brake pads — Part 1: Friction material specification
  • EN 14531-1 Railway applications — Safety requirements for the design of rolling stock

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