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

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DAkkS D-K-20511-01-00 Admannshagen-Bargeshagen, DE
Durchfluss von Gasen 0,3 0,5° bis 1,0° Strömungsgeschwindigkeit Betrag des Richtung des + 3 more
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DAkkS D-K-19592-01-00 Pforzheim, DE
Tensile testing of metallic materials (I Railway braking — urban guided transport Railway bogies — wheelsets and bogies st Temperaturmessgrößen relativen Feuchte + 3 more
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DAkkS D-PL-20258-01-01 Heilbronn, DE
ISO 20653 DIN EN ISO 6270-2 DIN EN IEC 60068-2-11 DIN EN 60068-2-14 DIN EN 60068-2-30 + 3 more
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UKAS 2713 Newhaven, GB
(HSG 248) – 2021 (PCM) based on HSG 248
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ACCREDIA 00592 Mirandola, IT
DIN EN ISO 10523 DIN EN 14346 DIN EN 15169 DIN EN ISO 10304-1 DIN EN 14039 + 3 more
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DAkkS D-PL-18759-01-01 Penzlin, DE
DIN EN ISO 11885 DIN EN ISO 10523 (C 5) DIN EN 27888 (C 8) DIN EN ISO 10304-1 (D 20) DIN EN ISO 11885 (E 22) + 3 more
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DAkkS D-PL-18062-01-02 Leipzig, DE
DIN EN ISO 12185 DIN EN ISO 2160 DIN ISO 2049 DIN EN ISO 2719 DIN EN ISO 6245 + 3 more
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ACCREDIA 01112 Settimo di Pescantina, IT
ISO 4832 DIN EN 13657 DIN EN 14346 DIN EN 14039 DIN EN ISO 16703 + 3 more
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DAkkS D-PL-21433-01-00 Duisburg, DE
DIN EN ISO 12185 DIN EN 27888 DIN EN ISO 11885 DIN EN ISO 10523 DIN EN ISO 10304-1 + 3 more
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DAkkS D-PL-14501-01-03 Fürth, DE
DIN EN 27888 DIN ISO 16649-2 DIN EN ISO 4833-1 DIN EN ISO 6579-1 DIN EN ISO 7932 + 3 more
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DAkkS D-PL-20885-01-03 Obernburg, DE
AK gegen BP 180 rs2066845 ISO 3795 DIN 75200 DIN EN ISO 1463 + 3 more
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DAkkS D-PL-14414-01-01 Fellbach, DE
DIN EN 12880 DIN EN ISO 10523 (C 5) DIN EN 27888 (C 8) DIN EN ISO 10304-1 (D 20) DIN EN ISO 11885 (E 22) + 3 more
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RvA L493 Willemstad, Curacao, NL
ISO 6222 ISO 7899-2 ISO 9308-1 ISO 16266 DIN EN 26461-2 + 3 more
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UKAS 0934 Neath, GB
DIN EN 13126-19 DIN EN 13284-1 DIN EN 14790 DIN EN 14792 IEC 60519-11 + 3 more
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UKAS 4147 Bellshill, GB
DIN EN ISO 17141 DIN EN ISO 15883-4 DIN EN 16442 requirements of HTM 01-06 Part E BS EN ISO 14644-2:2015:Part 2 + 3 more
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UKAS 7874 Caerleon, GB
abs Ethanol Digoxin HbA1c Cortisol + 3 more
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UKAS 10338 Newport, GB
Helicobacter pylori Squamous-cell-carcinoma Fungi Measurement Demonstration of: | Operation and Mainte + 3 more
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Anthony Nolan

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UKAS 8630 London, GB
Anthony Nolan Lymph node | HLA-DRB1 DOC293 Lymph node | CCR5 Δ32 DOC3755 Lymph node | HFE Cells | RSC Buccal swab DNA kit TM479 + 3 more
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ACCREDIA 00482 Bienno, IT
Tensile testing of metallic materials (I Charpy impact test (ISO 148-1) DIN EN ISO 7438 DIN EN ISO 5173 DIN EN ISO 9016 + 3 more
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RvA I251 Rotterdam, NL
DIN EN 10160 DIN EN 10228-3 DIN EN 10228-4 DIN EN 1593 DIN EN 14127 + 3 more
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DAkkS D-PL-11092-04-01 Wuppertal, DE
DIN EN 13018 ISO 20653 DIN EN IEC 60068-2-11 DIN EN 60068-2-14 DIN EN 60068-2-30 + 3 more
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DAkkS D-PL-11092-01-01 Neumarkt, DE
Salt spray / neutral salt fog test (ISO ISO 20653 VDE 0468-2-1 DIN EN IEC 60068-2-11 VDE 0468-2-11 + 3 more
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DAkkS D-PL-11092-01-00 Nürnberg, DE
ISO 20653 DIN EN IEC 60068-2-11 DIN EN 60068-2-30 IEC 60068-2-82 ISO 16750-3 + 3 more
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ACCREDIA 01348 Lonate Pozzolo, IT
DIN EN ISO 11885 DIN EN 13657 DIN EN ISO 9377-2 DIN EN 15934 DIN EN ISO 16703 + 3 more
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DAkkS D-PL-17148-01-02 Eisenhüttenstadt, DE
DIN 51757 DIN EN ISO 10523 (C 5) DIN EN 27888 (C 8) DIN EN ISO 10304-1 (D 20) DIN EN ISO 11885 (E 22) + 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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