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
3,525 Accredited labs
21 Countries

Showing 276–300 of 3,525 labs

UKAS 27746 Blackley, GB
DIN EN 1650 DIN EN 13624 DIN EN 16615 DIN EN 1276
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DAkkS D-PL-17278-01-02 Berlin, DE
DIN EN 27888 DIN 19682-1 DIN 19682-2 DIN EN ISO 14688-2 DIN EN 12457-4 + 3 more
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ACCREDIA 00203 Bologna, IT
DIN EN 27888 DIN EN ISO 17294-2 ISO 11731 ISO 6222 ISO 7899-2 + 3 more
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DAkkS D-K-17702-01-00 Garching, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) 1) In den CMC sind die erweiterten Messu − Waagen + 2 more
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ACCREDIA 01433 Ovada, IT
DIN EN 12880 DIN EN 933-1 DIN EN 933-11 DIN EN 1097-2 DIN EN 1097-5 + 3 more
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UKAS 10243 Royston, GB
(PCM) based on HSG 248 Analysts’ Guide (HSG 248)
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UKAS 2230 Prestwick, GB
(HSG 248) – 2021 (PCM) based on HSG 248 LSD.ASB.02 based on HSG 248 LSD.ASB.04 based on HSG 248
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UKAS 10194 Hockliffe, GB
(PCM) based on HSG 248 Analysts’ Guide (HSG 248
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UKAS 0472 Grays, GB
ASB/SOP/OM8 based on HSG 248 (HSG 248) – 2021 QOP03 based on HSG 248 (PCM) based on HSG 248 (PCM) based on HSG 248) + 1 more
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UKAS 10792 Mansfield Woodhouse, GB
(HSG 248) – 2021 (PCM) based on HSG 248
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UKAS 4234 Slough, GB
(HSG 264, 2012) (HSG 248) – 2021 (PCM) based on HSG 248
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UKAS 2544 Hebburn, GB
(HSG 248) – 2021 QOP03 based on HSG 248 (PCM) based on HSG 248 QOP01 based on HSG 248
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UKAS 32982 Sunderland, GB
(PCM) based on HSG 248 M3 based on HSG 248 (HSG 248) – 2022 UP02 based on HSG 248 UP03 based on HSG 248 and HSG
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DAkkS D-K-15079-01-00 Alsdorf, DE
> 2,0 bar positiver Überdruck Absolutdruck Pabs > 0,03 bar > 7 bar + 3 more
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DAkkS D-PL-22860-01-01 Reutlingen, DE
Salt spray / neutral salt fog test (ISO ISO 16750-5 VDE 0468-2-1 DIN EN IEC 60068-2-5 VDE 0468-2-5 + 3 more
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ACCREDIA 00117 Saint Christophe, IT
ISO 4833-2 based on ISO 13366-2:2006 ISO 14675 UNI 10935 UNI 10934 + 2 more
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ACCREDIA 00595 Cuneo, IT
DIN EN ISO 5983-2 ISO 18787 ISO 21527-1 DIN EN ISO 4833-1 DIN EN ISO 6888-2 + 3 more
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ACCREDIA 00921 Putignano, IT
based on ISO 13366-2:2006 ISO 9622 ISO 13366-2
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ACCREDIA 00545 Vicenza, IT
ISO 4832 DIN EN ISO 6888-2 ISO 6222 ISO 7899-2 ISO 9308-1 + 3 more
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ACCREDIA 00898 Andria, IT
BS EN 15662 UNI EN 15662
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UKAS 0438 London, GB
(HSG 264, 2012)
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UKAS 30612 Cambridge Biomedical Campus, GB
Betriebsübertragungsmaß Hydraulic pressure (gauge) AC CURRENT RELATIVE HUMIDITY DC CURRENT + 3 more
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UKAS 4696 Rochford, GB
(PCM) based on HSG 248 Analysts’ Guide (HSG 248) (HSG 248) – 2021 Asbestos: The
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DAkkS D-K-17447-01-01 Essen, DE
Railway braking — urban guided transport Railway — traction effort and braking fo mentschraubwerkzeuge Druckkraftrichtung 0,2 N∙m + 3 more
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DAkkS D-PL-14564-01-03 Berlin, DE
DIN EN ISO 1463 DIN EN ISO 6270-2 DIN EN ISO 22479 DIN EN 60243-1 ISO 6270-2 + 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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