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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ACCREDIA 00619 Lanciano, IT
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ACCREDIA 00176 Campi Bisenzio, IT
dbSNP rs1800562, rs1799945, rs1800730, r DIN EN 27888 ISO 18787 ISO 4832 ISO 15214 + 3 more
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ACCREDIA 00740 Modena, IT
IEC 60512-17-1 DIN EN ISO 12966-2 DIN EN ISO 3960 ISO 18787 ISO 6496 + 3 more
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DAkkS D-PL-13096-01-01 Rostock, DE
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ENAC LE582 Sant Quirze del Valles, ES
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COFRAC 1-7423 Chalon-Sur-Saône, FR
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COFRAC 1-6232 Nantes, FR
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COFRAC 1-0973 Sevres, FR
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BK Werkstofftechnik - Prüfstelle für Werkstoffe

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DAkkS D-PL-11336-01-01 Bremen, DE
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ACCREDIA 00586 Lucca, IT
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BODEMKUNDIGE DIENST VAN BELGIE vzw

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BELAC 127-TEST Leuven, BE
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DAkkS D-PL-19488-01-02 Berlin, DE
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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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