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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Inotech Meter Calibration Systems

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DAkkS D-K-20838-01-02 Bietigheim, DE
Railway braking — urban guided transport Railway vehicle body structural requirem Railway bogies — wheelsets and bogies st Railway pantographs — requirements for m Frequenz + 3 more
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Institut Haag

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DAkkS D-PL-17299-01-02 Kornwestheim, DE
DIN EN 932-1 DIN EN 932-2 DIN EN 932-3 DIN EN 933-1 DIN EN 933-3 + 3 more
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Institut Lörcher und Partner mbB Handelschemiker

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DIN EN 27888 DIN ISO 16649-2 DIN EN ISO 4833-1 DIN EN ISO 7932 DIN EN ISO 11290-1 + 3 more
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DAkkS D-PL-14084-01-03 Bad Kissingen, DE
ISO 4831 DIN EN ISO 19458 DIN 18123 DIN EN ISO 11885 DIN EN ISO 10523 (C 5) + 3 more
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DIN EN 15621 DIN EN 15763 DIN EN 15765 ISO 4831 ISO 4832 + 3 more
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Institut Technique des Gaz et de l'Air - ITGA - Site St Grégoire K

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COFRAC 1-5970 Saint-Gregoire, FR
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COFRAC 1-1029 Meyreuil, FR
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COFRAC 1-5968 Merignac, FR
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COFRAC 1-5969 Arcueil, FR
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COFRAC 1-5967 Saint-Gregoire Cedex, FR
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Institut für Analytik und Umweltchemie

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DAkkS D-PL-19208-01-02 Neuhaus am Rennweg, DE
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Institut für Diabetestechnologie, Forschungs- und Entwicklungsgesellschaft mbH an der Universität Ulm

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DAkkS D-PL-19564-01-00 Ulm, DE
DIN EN ISO 15197 DIN EN 13612
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Institut für Galvano- und Oberflächentechnik Solingen GmbH & Co. KG (IGOS)

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Salt spray / neutral salt fog test (ISO DIN EN ISO 6507-1 DIN EN ISO 1463 ISO 16750-5 DIN EN ISO 6270-2 + 3 more
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Institut für Hygiene und Umwelt

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DAkkS D-PL-14095-03-02 Hamburg, DE
Bakterien, Pilze Salmonella spp. Ektoparasiten Corynebakterien Influenza A Virus + 3 more
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Institut für Klinische Transfusionsmedizin und Immungenetik Ulm gemeinnützige

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Institut für Lackprüfung Andreas Keiner

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DIN EN 303-5 DIN EN 303-5
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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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