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 626–650 of 1,560 labs

UKAS 0101 Bridge of Don, GB
ASTM D 5443 ASTM D2892 (modified) ASTM D2503 ASTM D4052 (modified) ASTM D2887 (modified) + 3 more
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UKAS 0123 Aberdeen, GB
DC Resistance DC VOLTAGE Temperatur-Simulation AC CURRENT Base metal thermocouples + 3 more
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UKAS 0102 Grays, GB
ASTM D3338 ASTM D 2624 ASTM D 5006 ASTM D 2386 ASTM D7153 + 3 more
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UKAS 1158 Chester, GB
UK 3725 based on ASTM D2163 and BS EN 15984:2011-07 IP 411, ISO 6251 ASTM D6667 mod ISO 8973 modified + 3 more
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DAkkS D-PL-11283-01-01 Seevetal, DE
ISO 6508-1 Charpy impact test (ISO 148-1) Tensile testing of metallic materials (I BS EN ISO 9015-2 BS EN ISO 9016:2022 + 3 more
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DAkkS D-K-12001-01-01 Ottobrunn, DE
- Gleichstromwiderstand / Messgeräte Quellen >100 Ω > 10 kΩ + 3 more
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DAkkS D-PL-12023-01-01 Darmstadt, DE
DIN 56912 DIN EN 12198-1 DIN EN 12198-2 DIN EN 12198-3 DIN EN 60825-1 + 3 more
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DAkkS D-PL-17201-01-00 Rheinmünster, DE
ISO 17987-6 ISO 17987-7 ISO 16845
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DAkkS D-K-20838-01-02 Bietigheim, DE
Taupunkttemperatur Railway braking — urban guided transport Railway vehicle body structural requirem Railway bogies — wheelsets and bogies st Elektrische + 3 more
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UKAS 8401 Drighlington, GB
Appendix 5 of HSG 227 (2004))
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COFRAC 1-5970 Saint-Gregoire, FR
ISO 22262-1 NF X 43-050 NF X43-050 (parties utiles de la
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COFRAC 1-6090 Brest, FR
ISO 22262-1 NF X 43-050 NF X 43-269 – NF X43-050 (parties
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COFRAC 1-6585 Sainte Marie, FR
ISO 22262-1 NF X 43-050 NF X 43-269 – NF X43-050 (parties utiles de
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COFRAC 1-5971 Villeneuve D'Ascq, FR
NF X 43-269 DIN EN ISO 16017-1 NF X 43-007 NF X 46-032 NF X 43-298 + 3 more
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COFRAC 1-6091 Metz, FR
NF X 43-269 DIN EN ISO 16017-1 NF X 43-007 NF X 43-298 NF X43-050 (parties utiles de + 3 more
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COFRAC 1-1029 Meyreuil, FR
NF X 43-269 DIN EN ISO 16017-1 NF X 43-298 NF X 46-032 ISO 22262-1 + 3 more
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COFRAC 1-5968 Merignac, FR
NF X 43-269 DIN EN ISO 16017-1 NF X43-269 – Annexe NF X 43-007 NF X 43-298 + 3 more
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COFRAC 1-1761 Saint Etienne, FR
NF X 43-269 NF X 43-007 NF X 46-032 NF X 43-014 NF X 43-259 + 3 more
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COFRAC 1-5967 Saint-Gregoire Cedex, FR
NF X 43-269 EN 13087-2 DIN EN ISO 16017-1 NF X 43-007 DIN EN ISO 16017-2 + 3 more
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DAkkS D-PL-14095-03-02 Hamburg, DE
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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DAkkS D-ML-17347-01-00 Ulm, DE
Basophile Granulozyten Eosinophile Granulozyten Erythrozyten Lymphozyten Leukozyten + 3 more
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DAkkS D-ML-18337-01-00 München, DE
Bacillus anthracis Antikörper Direkter Coombstest polyvalent Brucella spp. IgG, IgM Antikörper Francisella tularensis-Antikörper polyvalent, IgG, IgM + 3 more
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DAkkS D-K-18657-01-01 Emmerthal, DE
Kurzschlussstrom 0,5 mA 0,1 V Füllfaktor Solarzellen* 25 % 0,01 mW THD U 0,1 % + 3 more
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DAkkS D-PL-19759-01-05 Duisburg, DE
Erythrozyten im 1,5.10121-1 DIN EN ISO 10121-2 DIN EN ISO 16890-1 DIN EN ISO 16890-2 DIN EN ISO 16890-3 + 3 more
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DAkkS D-PL-19125-01-00 Bonn, DE
DIN EN IEC 60255-1 VDE 0435-300 DIN EN 60255-151 VDE 0435-3151 IEC 60255-151 + 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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