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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Ludwig-Maximilians-Universität München Max-von-Pettenkofer-Institut, Lehrstuhl Virologie

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DAkkS D-ML-14413-01-01 München, DE
Albumin Astrovirus Rotavirus A Hepatitis-B-core-Antikörper Hepatitis-B-surface-Antigen + 3 more
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Lynxeo Deutschland

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DAkkS D-PL-22266-01-00 Nürnberg, DE
ISO 6722-1 ISO 6722-2 ISO 14572 DIN VDE 0276-604 DIN EN 60684-2 + 3 more
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M E Broadstone Limited

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UKAS 0227 Poole, GB
LENGTH Plain gap gauges (parallel) ANGLE Depth Plain plug gauges (taper) + 3 more
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M.P. s.u.r.l.

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ACCREDIA 00486 Cucciago, IT
DIN EN ISO 3679 ISO 4832 DIN ISO 16649-2 DIN EN 12880 DIN EN ISO 19458 + 3 more
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M2A di Matteoni Marco

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ACCREDIA 01218 Lucca, IT
DIN EN ISO 4833-1 DIN EN ISO 6579-1 DIN EN ISO 11290-1 DIN EN ISO 11290-2 DIN EN ISO 21528-2 + 3 more
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M2lab

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RvA L696 Udenhout, NL
DIN EN ISO 4628-8 ISO 2813 ISO 6270-1 ISO 2409 BS EN ISO 16474-3:2021 + 3 more
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MAControls

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UKAS 32229 Cheltenham, GB
Hydraulic pressure (gauge) Gas pressure (gauge) Resistance thermometers probe types
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MAIN LABORATORY SASSUOLO SRL

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ACCREDIA 00853 Scandiano, IT
DIN EN 1348 DIN EN 12004-2 DIN CEN/TS 16165 DIN EN 1308 DIN EN 1324 + 3 more
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MANUMESURE

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COFRAC 1-2000 Meyzieu, FR
DIN EN 13126-19 ISO 10780 DIN EN ISO 16911-1 DIN EN 13284-1 DIN EN 14790 + 3 more
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MANUMESURE

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COFRAC 1-1318 Asnieres Sur Seine, FR
DIN EN 13126-19 ISO 10780 DIN EN ISO 16911-1 DIN EN 13284-1 DIN EN 14790 + 3 more
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MANUMESURE

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COFRAC 1-7496 Asnieres Sur Seine, FR
ISO 10780 NF X43-329 BS EN BS EN ISO 21877:2019 BS EN ISO 16911-1:2013 using IS EN 15058:2017 + 3 more
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MAPE - Métier Environnement

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COFRAC 1-1678 Etupes, FR
DIN EN 13284-1 DIN EN ISO 21877 DIN EN 14791 DIN EN 13211 DIN EN 14385 + 3 more
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MAPE - Métier Environnement

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COFRAC 1-6837 Lievin, FR
DIN EN 13126-19 DIN EN ISO 10523 ISO 10780 DIN EN ISO 16911-1 DIN EN 13284-1 + 3 more
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MARCONCINI SRL

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ACCREDIA 00643 Prato, IT
ISO 4832 DIN ISO 16649-2 DIN EN ISO 4833-1 DIN EN ISO 21528-2 DIN EN 13126-19 + 3 more
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MARE.A SRL

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ACCREDIA 00729 Cattolica, IT
DIN EN 27888 DIN EN ISO 10523 ISO 11731 DIN EN ISO 4833-2 ISO 21528-2 + 3 more
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MARINO

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ACCREDIA 00288 Santa Maria a Vico, IT
DIN EN ISO 12966-2 ISO 18787 ISO 4832 ISO 15214 ISO 21527-1 + 3 more
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MARTECH ENVIRONNEMENT

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COFRAC 1-6308 Cachan, FR
NF X 43-262 NF X 43-257 NF X 43-050 NF X 43-269 NF X 43-259 + 2 more
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MATE SRL

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ACCREDIA 01525 Torrita di Siena, IT
Salt spray / neutral salt fog test (ISO DIN EN IEC 60068-2-11 DIN EN IEC 60068-2-13 DIN EN 60068-2-14 DIN EN 60068-2-30 + 3 more
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MATED

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ACCREDIA 01130 Trento, IT
Salt spray / neutral salt fog test (ISO DIN EN ISO 2812-1 DIN EN ISO 2813 DIN EN ISO 6270-2 DIN EN IEC 60068-2-11 + 3 more
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MATtest

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UKAS 2643 Glasgow, GB
DIN EN 12350-1 DIN EN 12390-1 DIN EN 12390-2 DIN EN 12390-3 DIN EN 12504-1 + 3 more
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MBS

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DAkkS D-PL-12159-01-00 Krefeld, DE
DIN EN ISO 16484-5 DIN EN ISO 16484-6 IEC 62386-101 IEC 62386-102 IEC 62386-103 + 3 more
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MCV

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ENAC LC10.124 Collbató, ES
0,005 l/min ≤ Q ≤ 50 l/min 0,5 m3/h≤ Q ≤ 2,8 m3/h 0,6 m3/h  Q  2,8 m3/h 20 m3/h  Q  30 m3/h 30 m3/h < Q  70 m3/h + 3 more
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MD ELEKTRONIK GmbH MD Test Laboratory (Prüflabor)

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DAkkS D-PL-19548-01-03 Waldkraiburg, DE
DIN EN 13018 ISO 20653 VDE 0468-2-1 DIN EN IEC 60068-2-11 DIN EN 60068-2-14 + 3 more
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MDI Limbach Berlin

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DAkkS D-ML-13341-01-01 Berlin, DE
Digitoxin HbA1c Aldosteron Cortisol Testosteron + 3 more
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ME-Meßsysteme

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DAkkS D-K-21980-02-01 Hennigsdorf, DE
Sound power — survey method (ISO 3746) Railway brake — automatic variable load 0,2 kN 50 kN Handkraftmessgeräte + 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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