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
3,963 Accredited labs
21 Countries

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ACCREDIA 00543 Salara, IT
DIN EN ISO 4833-1 DIN EN 12880 DIN EN 14346 DIN EN ISO 16911-1 DIN EN 13284-1 + 3 more
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ACCREDIA 00400 Pescara, IT
OIV-MA-AS313-01 cap 5.2 R2015 OIV-MA-AS313-02 R2015 OIV-MA-AS323-04B R2009 OIV-MA-AS2-03B R2012 OIV-MA-AS311-02 R2009 + 3 more
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ACCREDIA 00029 Busto Arsizio, IT
ISO 3795 DIN EN ISO 659 DIN EN ISO 16212 DIN EN ISO 10863 DIN EN 1015-11 + 3 more
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CENTROCAL

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DAkkS D-K-17734-01-01 Werne, DE
Railway brake handbooks (UIC 547) - Direktanzeigende Thermometer - Thermopaare, Thermoelemente Taupunkttemperatur Temperatursimulatoren + 3 more
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ACCREDIA 01358 Casalecchio di Reno, IT
BS EN ISO 16911-1:2013 using ISO 23695 NF EN 13284-1 APAT CNR IRSA 2060 Man 29 2003 ISPRA Man 117 2014 + 3 more
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ACCREDIA 01987 Cerea, IT
DIN EN 27888 DIN EN ISO 1133-1 DIN EN ISO 3451-1 DIN EN ISO 15587-2 DIN EN 13657 + 3 more
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COFRAC 1-1209 Garons, FR
DIN EN 27888 ISO 4832 ISO 15214 ISO 21527-2 DIN ISO 16649-2 + 3 more
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COFRAC 1-0894 Lieu Saint-Amand, FR
DIN EN 27888 ISO 15214 DIN EN ISO 6579-1 DIN EN ISO 7932 DIN EN ISO 11290-1 + 3 more
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COFRAC 1-7543 Sourdun, FR
Tensile testing of metallic materials (I Salt spray / neutral salt fog test (ISO ISO 6270-1 DIN EN ISO17892-12 ISO 19840 + 3 more
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COFRAC 1-5710 Saint-Quentin, FR
Tensile testing of metallic materials (I DIN EN 12390-3 DIN EN 933-1 DIN EN 933-3 DIN EN 1097-2 + 3 more
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COFRAC 1-5697 Aix-En-Provence, FR
Tensile testing of metallic materials (I DIN EN 62196-1: 2015 DIN EN 12390-3 DIN EN 932-2 DIN EN 933-1 + 3 more
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COFRAC 1-5706 Toulouse, FR
DIN EN 62196-1: 2015 DIN EN 12390-3 DIN EN 932-1 DIN EN 932-2 DIN EN 932-3 + 3 more
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CERIB

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COFRAC 1-0001 Epernon, FR
DIN EN 62196-1: 2015 DIN EN 12350-3 DIN EN 12390-3 DIN EN 932-2 DIN EN 933-1 + 3 more
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DAkkS D-PL-19907-01-01 Zorneding-Pöring, DE
DIN 75200 DIN EN ISO 5173 DIN EN ISO 18203 DIN EN ISO 6506-1 DIN EN ISO 6507-1 + 3 more
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DAkkS D-K-19907-01-01 Aichach, DE
Elementanalyse in Festkörpern spektrometrie von Kupfer (Cu) Nickel (Ni) + 3 more
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DAkkS D-PL-11312-01-00 Nürnberg, DE
DIN EN 16334 DIN EN 50215 EN 50128 EN 50657 EN 50129 + 3 more
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ACCREDIA 00719 Longarone, IT
DIN EN 61439-7: 2016-10 DIN EN ISO 17636-2 DIN EN ISO 1172 DIN EN ISO 17075-1 DIN EN 1122 + 3 more
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ACCREDIA 01189 Longarone, IT
DIN EN 61439-7: 2016-10 DIN EN ISO 16212 DIN EN ISO 17636-2 DIN EN 143 DIN EN 13274-3 + 3 more
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UKAS 2338 Burton-upon-Trent, GB
ISO 11948-1 DIN EN 13126-19 DIN EN ISO 16911-1 DIN EN 13284-1 DIN EN 14790 + 3 more
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CESI

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ACCREDIA 00026 Milano, IT
DIN EN 60068-2-75 DIN EN 60529 DIN EN 62262 DIN EN 62271-1 DIN EN 62271-100 + 3 more
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CESILAB

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ACCREDIA 01912 Turbigo, IT
DIN EN ISO 15587-2 DIN EN ISO 10304-1 DIN EN ISO 16703 DIN EN 16173 ISO 10304-1 + 3 more
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ACCREDIA 01678 Villa Lagarina, IT
DIN EN 1926 DIN EN 12372 DIN EN 1936 DIN EN 12371 DIN EN 13755 + 3 more
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DAkkS D-K-19566-01-00 Hilden, DE
Railway pantographs — requirements for m > 0,05 bar > 1,0 bar bis dV/dt von (ein- oder mehrgängige + 3 more
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CETIAT

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COFRAC 1-0021 Villeurbanne Cedex, FR
DIN EN 442-2 DIN EN 1860-1 IEC 62442-1 DIN EN ISO 16890-1 DIN EN ISO 16890-2 + 3 more
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CETIM

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COFRAC 1-7263 Senlis, FR
Tensile testing of metallic materials (I Charpy impact test (ISO 148-1) DIN EN ISO 4136 DIN EN ISO 5173 DIN EN ISO 9016 + 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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