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
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Johann Spotka

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DAkkS D-PL-11247-01-00 Postbauer-Heng, DE
DIN EN 932-1 DIN EN 932-2 DIN EN 933-1 DIN EN ISO 17892-4 DIN 18128 + 3 more
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DAkkS D-K-11250-01-00 Lübeck, DE
Railway pantographs — requirements for m Railway overhead lines — pantograph head positiver Überdruck Volumendurchfluss dV/dt von + 3 more
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DAkkS D-PL-11250-01-01 Lübeck, DE
DIN EN 60601-1 IEC 60601-1 DIN EN 60601-1-1 IEC 60601-1-1 DIN EN 60601-1-4 + 3 more
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Duravit

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DAkkS D-PL-21217-01-00 Hornberg, DE
(-13910T>C) rs4988235 - PiM rs6647, PiZ rs28929474, rs17580 Laktoseintoleranz (LCT -14055 *6095991, BAG3 [OMIM *6038831 ISO 11452-8: 2015 + 3 more
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E C L (2000)

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UKAS 0709 Forest Hall, GB
(HSG 248) – 2021 (PCM) based on HSG 248)
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DAkkS D-PL-12144-01-01 Altdorf, DE
VDE 0468-2-1 DIN EN IEC 60068-2-11 DIN EN IEC 60068-2-13 DIN EN 60068-2-14 VDE 0468-2-14 + 3 more
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DAkkS D-K-18994-01-00 Pleidelsheim, DE
/ Messgeräte verwendete Abkürzungen: Volumenmessgeräte optische 0 mm Werkzeugeinstell- und + 1 more
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ACCREDIA 00742 Catania, IT
ISO 4832 DIN EN ISO 4833-1 DIN EN ISO 17141 ISO 11731 ISO 11290-1 + 3 more
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E.L.A.

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ACCREDIA 01115 Asti, IT
DIN EN 27888 DIN EN ISO 4833-1 DIN EN ISO 11885 DIN EN 13657 DIN EN ISO 10523 + 3 more
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E.S.T.

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ACCREDIA 00085 Grassobbio, IT
DIN EN 13126-19 DIN EN ISO 15587-2 DIN EN 14039 DIN EN ISO 16703 DIN EN ISO 16911-1 + 3 more
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ECAMRICERT

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ACCREDIA 00575 Monte di Malo, IT
Tensile testing of metallic materials (I Charpy impact test (ISO 148-1) DIN EN ISO 4136 DIN EN ISO 9016 DIN EN ISO 6507-1 + 3 more
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ACCREDIA 00886 Spoltore, IT
DIN EN 27888 DIN ISO 16649-2 DIN EN ISO 4833-1 DIN EN ISO 18593 DIN EN ISO 11885 + 3 more
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ACCREDIA 01396 Villa San Pietro, IT
DIN ISO 16649-2 DIN EN ISO 4833-1 DIN EN ISO 21528-2 DIN EN ISO 18593 DIN EN ISO 11885 + 3 more
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ACCREDIA 00623 FERMO, IT
DIN EN ISO 4833-1 DIN EN ISO 6579-1 DIN EN ISO 6888-2 DIN EN ISO 7932 DIN EN ISO 11290-1 + 3 more
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ACCREDIA 01231 Vallata, IT
DIN EN ISO 21528-2 DIN EN 13657 ISO 11731 ISO 21528-2 ISO 6222 + 3 more
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ACCREDIA 00829 Balvano, IT
ISO 18787 ISO 4832 ISO 21527-1 ISO 21527-2 DIN ISO 16649-2 + 3 more
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ACCREDIA 00523 Orbassano, IT
ISO 4832 ISO 15214 ISO 21527-1 ISO 21527-2 DIN EN ISO 4833-1 + 3 more
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ECOCHEM

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ACCREDIA 00218 Vicenza, IT
DIN EN 12880 DIN EN 13126-19 DIN EN ISO 15587-2 DIN EN 13657 DIN EN 14346 + 3 more
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ECOCONTROL

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ACCREDIA 00359 Pomezia, IT
ISO 21527-1 ISO 21527-2 DIN EN ISO 4833-1 DIN EN ISO 6579-1 DIN EN ISO 7932 + 3 more
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ECOCONTROL

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ACCREDIA 00756 Caraffa di Catanzaro, IT
ISO 4832 ISO 21527-1 ISO 21527-2 DIN EN ISO 4833-1 DIN EN ISO 6579-1 + 3 more
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ACCREDIA 00340 Priolo Gargallo, IT
DIN EN 12662-1 DIN EN 15984 IEC 60512-17-1 ISO 4832 DIN ISO 16649-2 + 3 more
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ECOGAM

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ACCREDIA 00657 Grosseto, IT
ISO 18787 ISO 21527-1 ISO 21527-2 DIN ISO 16649-2 DIN EN ISO 4833-1 + 3 more
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ACCREDIA 00590 Quart, IT
ISO 4832 DIN EN 846-7 ISO 11731 ISO 16649-2 ISO 11290-1 + 3 more
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ACCREDIA 01023 Bergamo, IT
DIN EN ISO 4833-1 DIN EN ISO 21528-2 DIN EN ISO 18593 DIN EN ISO 10304-1 DIN EN ISO 17294-2 + 3 more
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ACCREDIA 00114 Lucca, IT
dbSNP rs1800562, rs1799945, rs1800730, r DIN EN 27888 DIN EN ISO 19458 DIN EN 13126-19 DIN EN 1104 + 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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