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
1,560 Accredited labs
17 Countries

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DAkkS D-ML-13225-01-00 Augsburg, DE
HbA1c β-HCG Blutbild, automatisch Differentialblutbild, automatisch Hb-Äquivalent der Retikulozyten + 3 more
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DAkkS D-ML-13225-07-00 München, DE
angeborener Chromosomensatz partieller angeborener partieller Chromosomensatz (zur Abklärung bekannter familiärer Chromosomenveränderung) + 3 more
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DAkkS D-ML-13202-01-00 Berlin, DE
HbA1c Blutbild, maschinell Differentialblutbild, maschinell Zellzählung Retikulozyten, maschinell + 3 more
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DAkkS D-ML-13095-01-00 Ettlingen, DE
RPR (Cardiolipin) Amiodaron, Desmethylamiodaron Clozapin, Norclozapin HbA1c Cyclosporin A, Everolimus, Sirolimus, Ta + 3 more
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DAkkS D-ML-21958-01-00 Hamburg, DE
Benzodiazepine Kokain Opiate Amphetamine THC + 3 more
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DAkkS D-ML-13129-01-00 Eppelheim, DE
HbA1c Differentialblutbild Erythrozyten Hämatokrit Leukozyten + 3 more
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DAkkS D-ML-21093-01-01 Freiburg, DE
BTD PAH Prader-Willi-Syndrom (PWS) / (PWS)WS/Angelman-Syndrom (AS) Familiärer Brust- und Eierstockkrebs + 2 more
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DAkkS D-ML-13293-01-00 Mannheim, DE
ABCC6 Pseudoxanthoma elasticum (PXE) Arterienkalzifikation, generalisierte in ABCC8 Hyperinsulinämische + 3 more
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DAkkS D-ML-18938-01-01 Varel, DE
HbA1c Differentialblutbild, maschinell Kleines Blutbild Retikulozyten, maschinell Zellzahl (Leukozyten, Erythrozyten) + 3 more
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DAkkS D-ML-13122-01-00 Trier, DE
Cardiolipin (CMT) HbA1c Basophile Eosinophile Erythrozyten + 3 more
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DAkkS D-ML-13122-02-00 Neuwied, DE
HbA1c Kleines Blutbild Großes Blutbild Differentialblutbild Retikulozyten + 3 more
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DAkkS D-ML-13014-01-00 Weiden, DE
Aceton, Isopropanol, Methanol Ethanol (Morphin, 6-Monoacetyl-morphin, Codein u Quantitative Bestätigungsanalyse Barbiturate (qualitative + 3 more
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DAkkS D-ML-13014-02-00 Nürnberg, DE
HbA1c Mittlere Blutglucose Aktivitätskonzentration Blutsenkung % Hyperchrome Erythrozyten + 3 more
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DAkkS D-ML-13014-03-01 Jena, DE
5-Fluorouracil Unverträglichkeit: DPD Mutationen Exon 14 c.1905+1 G>A rs3918290, Exon 11 c.1236G>A rs56038477, Exon 13 c.1679T>G rs55886062, Exon 22 c.2846A>T + 3 more
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DAkkS D-K-15008-01-01 Gladbeck, DE
Parallelendmaße 0,5 mm DIN EN ISO 3650:1999 Parallelendmaße aus Wolframkarbid nach Parallelendmaße aus 0,5 mm + 3 more
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DAkkS D-K-15216-01-00 Langenfeld, DE
Kraft (WPM) Werkstoffprüfmaschinen Acoustics — tonality assessment (DIN 456 Länge (WPM) messeinrichtungen von + 3 more
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DAkkS D-K-21043-01-00 Regenstauf, DE
Tensile testing of metallic materials (I Vickers hardness test (ISO 6507) Temperaturmessgrößen - Direktanzeigende Thermometer direktanzeigende > 200 °C + 3 more
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DAkkS D-K-22209-02-01 Erkrath, DE
− Abgasmessgeräte für Kompressionszündun Railway brake — magnetic track brakes (U Railway brakes — electropneumatic brakes Abgasmessgeräte für zündungsmotoren 5000 cm + 1 more
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DAkkS D-PL-11327-03-00 Hamburg, DE
DIN EN ISO 12185 ASTM D 4052 DIN EN ISO 3405 DIN EN 13016-1 DIN EN 13016-2 + 3 more
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DAkkS D-PL-11222-01-01 Oststeinbek, DE
ISO 37 ISO 8513 DIN EN 1393 ISO 21527-2 DIN EN ISO 527-4 + 3 more
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DAkkS D-K-11055-06-02 Fürth, DE
Thermodynamische Messgrößen Temperaturmessgrößen - Direktanzeigende Thermometer Railway brake handbooks (UIC 547) - Thermopaare, Thermoelemente + 3 more
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DAkkS D-PL-22642-01-01 Erlangen, DE
DIN EN 60601-1 IEC 60601-1 DIN EN 60601-1-3 IEC 60601-1-3 DIN EN 60601-2-54 + 3 more
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DAkkS D-PL-21237-02-00 Wegberg, DE
DIN EN 15625 IEC 61133 DIN 27202-10 DIN EN 15746-1 DIN EN 60068-2-64 + 2 more
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DAkkS D-K-21044-02-01 Clausthal-Zellerfeld, DE
Sound power — engineering method using a Kalibrierung von 250 N Kraftmessgeräten Kraftaufnehmer und 0,25 kN + 3 more
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DAkkS D-ML-13177-02-00 Bamberg, DE
Verschlußzeit Kollagen/ADP Kollagen/Epinephrin Basophile Granulozyten Eosinophile Granulozyten Erythrozyten + 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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