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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DAkkS D-PL-22818-01-01 Willich, DE
DIN EN ISO 11426 ISO 11427 ISO 11426 UNE-EN 15934 DIN 51081
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DAkkS D-ML-18337-01-00 München, DE
SARS-CoV-2 SARS-CoV-2-Antikörper West-Nil-Virus Grampositive und gramnegative Chikungunya Virus + 3 more
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CalTeC

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DAkkS D-K-18657-01-01 Emmerthal, DE
0,1 V 0,01 mW spektrale Mikrofonempfindlichkeit chung zwischen Stirnfläche + 3 more
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DAkkS D-PL-19759-01-05 Duisburg, DE
Erythrozyten im 1,5.10121-1 DIN EN ISO 11885 (E 22) DIN 38402-A 30 DIN EN 12341 ISO 8573-7 + 3 more
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DAkkS D-PL-13209-01-01 Erfurt, DE
DIN EN ISO 19458 DIN 38404-C 4 DIN EN ISO 19458 (K 19) DIN EN 13060 DIN EN ISO 15883-7 + 3 more
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DAkkS D-PL-19125-01-00 Bonn, DE
DIN EN 13018 ISO 16750-5 ISO 20653 DIN EN ISO 6270-2 DIN EN ISO 6988 + 3 more
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DAkkS D-K-19125-01-01 Bonn, DE
Railway braking — urban guided transport Railway vehicle body structural requirem Railway bogies — wheelsets and bogies st Quellen > 1 kV + 3 more
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DAkkS D-PL-19052-01-00 München, DE
DIN EN 13032-1 DIN 5032-1 DIN EN ISO/CIE 11664-1 DIN EN ISO/CIE 11664-2 DIN EN ISO/CIE 11664-3 + 3 more
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UKAS 8646 Harrogate, GB
Digoxin Cortisol Glucose CA 15-3 CA 19-9 + 3 more
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UKAS 9033 Steeton, GB
Digoxin Cortisol CA 15-3 CA 19-9 CA 125 + 3 more
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Intek

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ACCREDIA 00855 Rezzato, IT
9 ISO 20653 DIN EN 50155 DIN EN 60068-2-14 DIN EN 60068-2-30 + 3 more
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ACCREDIA 02096 Brunico, IT
Salt spray / neutral salt fog test (ISO Technical cleanliness of fluid system co DIN EN 13018 DIN EN 60068-2-14 DIN EN 60068-2-30 + 3 more
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ACCREDIA 01945 Monfalcone, IT
DIN EN 27888 DIN EN ISO 17294-2 DIN EN 12457-2 ISO 11731 ISO 6222 + 3 more
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DAkkS D-PL-11307-01-00 Hamburg, DE
ID116 (LBLS) (OMIM 611105) (c.228- DIN 51757 ASTM D 4052 DIN EN ISO 12185 + 3 more
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DAkkS D-PL-14184-01-02 Fürth, DE
DIN EN 1264-5 DIN EN 717-3 DIN EN ISO 11885 DIN EN 61340-4-4 DIN EN ISO 11885 (E 22) + 3 more
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DAkkS D-PL-12085-01-01 Kaufbeuren, DE
ISO 16750-5 ISO 20653 DIN EN ISO 6270-2 DIN EN 50155 DIN EN IEC 60068-2-11 + 3 more
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DAkkS D-PL-14171-01-01 Bremen, DE
> 660 DIN EN 15763 DIN EN 27888 DIN EN ISO 659 DIN EN ISO 665 + 3 more
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RvA L377 Geleen, NL
(p.Ala222Val); dbSNP rs1801133 ISO 3795 DIN EN 12879 DIN EN 12880 DIN EN ISO 19458 + 3 more
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UKAS 10641 Churcham, GB
HUMAN BODY FLUIDS | SOP 7.5.4 Venous Serum | LDH IFCC Venous Serum | AST IFCC Venous Serum | Magnesium Colourmetric Venous and Capillary Serum | CRP4 Partic + 3 more
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UKAS 8993 London, GB
Measurement Molecular and Cytogenetics examination a Detection of unbalanced structural chrom
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Irccos Srl

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ACCREDIA 02281 Cassano Magnago, IT
IEC 60512-15-2 IEC 60512-15-3 IEC 60512-15-4 IEC 60512-15-5 DIN EN 1026 + 3 more
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Ire-Omba Spa

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ACCREDIA 01551 Bergamo, IT
Tensile testing of metallic materials (I Charpy impact test (ISO 148-1) DIN EN 10228-3 DIN EN 10228-4 DIN EN ISO 3651-2 + 3 more
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ACCREDIA 00161 Genova, IT
DIN EN ISO 15587-2 DIN EN ISO 10304-1 DIN EN ISO 17294-2 DIN EN 1484 DIN EN ISO 9377-2 + 3 more
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DAkkS D-K-19500-01-01 Dillenburg, DE
Tensile testing of metallic materials (I Railway braking — urban guided transport - Gleichstromwiderstand - Thermopaare, Thermoelemente Widerstandssensor * > 250 °C + 3 more
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UKAS 9437 Newport, GB
Ethanol Digoxin Cortisol Glucose CEA + 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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