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

Showing 1,151–1,175 of 1,560 labs

DAkkS D-ML-22313-01-00 Gauting, DE
Mycobacterium tuberculosis Komplex Mykobakterien Obligat aerobe Aktinomyceten Interferon-gamma nach + 3 more
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DAkkS D-ML-13014-02-01 Nürnberg, DE
HbA1c Albumin Oestradiol 17ß Cortisol Salmonella spp. + 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-13095-01-00 Ettlingen, DE
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DAkkS D-ML-13129-01-00 Eppelheim, DE
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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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ABCC6 Pseudoxanthoma elasticum (PXE) Arterienkalzifikation, generalisierte in ABCC8 Hyperinsulinämische + 3 more
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DAkkS D-ML-18938-01-01 Varel, DE
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DAkkS D-ML-13122-01-00 Trier, DE
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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
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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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UKAS 4430 Swansea, GB
BS EN 1440:2016 + A1:2018 + EN ISO 23088:2020 Cylinders EN ISO 10460:2018 EN 14208:2004
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UKAS 4103 Bangor, GB
M002based on HSG 248 (HSG 248) – 2021 (PCM) based on HSG 248
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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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UKAS 0772 Rochford, GB
TORQUE increasing torque only.
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UKAS 2577 Redruth, GB
(HSG 248) – 2021 D3TA2 based on HSG 248 (PCM) based on HSG 248 D3TA8 based on HSG 248
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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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