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
🇩🇪 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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IHP Institut für Hämostaseologie und Pharmakologie MVZ

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IMA Materialforschung und Anwendungstechnik

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ASTM F1978 ASTM G195 DIN EN ISO 4287 DIN EN ISO 4288 DIN EN ISO 5470-1 + 3 more
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IMD Institut für Medizinische Diagnostik Berlin-Potsdam GbR IMD Berlin MVZ

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IMD Labor Oderland GmbH MVZ Ärztliches Labor Frank Berthold und Kollegen

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IPH Institut "Prüffeld für elektrische Hochleistungstechnik"

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ISEGA, Forschungs- und Untersuchungs

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Industrieanlagen- Betriebsgesellschaft mit beschränkter Haftung Kalibrierlabor

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Ingenieurbüro g o e b e l

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ISO 17987-6 ISO 17987-7 ISO 16845
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Inotech Meter Calibration Systems

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Taupunkttemperatur Railway braking — urban guided transport Railway vehicle body structural requirem Railway bogies — wheelsets and bogies st Elektrische + 3 more
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Institut für Hygiene und Umwelt

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DIN 38402-A 12 DIN ISO 5667-5 (A 14) DIN EN ISO 5667-6 (A 15) DIN EN ISO 19458 (K 19) DIN 19643-1 + 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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ISO 2178 ISO 4892-2: 2013-03 UNE-EN ISO 11998 BS EN ISO 16474-3:2021 ISO 6270-1 + 3 more
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Institut für Mikrobiologie der Bundeswehr Zentralbereich Diagnostik

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CalTeC

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Kurzschlussstrom 0,5 mA 0,1 V Füllfaktor Solarzellen* 25 % 0,01 mW THD U 0,1 % + 3 more
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Institute for International Product Safety

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DIN EN IEC 60255-1 VDE 0435-300 DIN EN 60255-151 VDE 0435-3151 IEC 60255-151 + 3 more
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Intertek Caleb Brett GERMANY

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Intertek Deutschland

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Isabellenhütte Heusler

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Isserstedt Prüfmaschinen

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Härte* 20 HRA Härtevergleichsplatten 20 HRB 20 HRC 40 HRD + 3 more
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JUMO GmbH & Co. KG Kalibrierlabor

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Temperaturmessgrößen (Härteskalen HV0,01 Widerstandssensor * direktanzeigende > 200 °C Messumformer mit + 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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