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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I.S.Q. LAB. di PERRONE VINCENZO

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ACCREDIA 00826 Cropani, IT
ISO 4832 ISO 16649-2 ISO 11290-1 ISO 21528-2 ISO 6579-1 + 3 more
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I2 Analytical

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UKAS 4041 Croxley Green, GB
DIN EN 12350-1 DIN EN 12390-2 DIN EN 932-1 DIN EN 932-2 DIN EN 933-1 + 3 more
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IAMET Srl

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ACCREDIA 00838 Valdagno, IT
Salt spray / neutral salt fog test (ISO DIN EN ISO 2177 BS ISO 9227:2022 ASTM B764-04 UNI EN ISO 2177
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IAMT Engineering

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DAkkS D-K-19019-01-02 Weischlitz, DE
Tensile testing of metallic materials (I Vickers hardness test (ISO 6507) Railway brake — automatic variable load Railway brake — magnetic track brakes (U Railway brake handbooks (UIC 547) + 3 more
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IANESCO

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COFRAC 1-6209 Poitiers, FR
DIN EN 27888 DIN EN ISO 15549 DIN EN ISO 11885 DIN EN ISO 10523 DIN ISO 17289 + 3 more
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ICA - Institut für chemische Analytik

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DAkkS D-PL-17484-01-02 Leipzig, 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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ICCR-Roßdorf

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DAkkS D-PL-13262-01-00 Roßdorf, DE
DIN EN ISO 17405 DIN EN ISO 10993-5 DIN EN ISO 10993-1 ISO 10993-23 DIN EN ISO 10993-2 + 3 more
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ID-Lindner GmbH Abteilung Prüftechnik

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DAkkS D-PL-21330-01-01 Kinding (Haunstetten), DE
DIN 73411-2 ISO 6803 DIN 73379 DIN SPEC 74106 DIN 73411-2 + 1 more
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IDIADA AUTOMOTIVE TECHNOLOGY

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ENAC LE159 Santa Oliva, ES
Salt spray / neutral salt fog test (ISO Spezifisches IgE gegen 112 ISO 20653 DIN EN IEC 60068-2-11 DIN EN 60068-2-64 + 3 more
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IDRO-CONSULT LABORATORI RIUNITI

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ACCREDIA 00641 Calenzano, IT
DIN EN 13657 DIN EN 14346 DIN EN ISO 17294-2 DIN EN 1484 DIN EN 14039 + 3 more
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IDRO3000

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ACCREDIA 00835 Trofarello, IT
DIN EN ISO 17294-2 DIN EN ISO 9377-2 ISO 6222 ISO 7899-2 ISO 9308-1 + 3 more
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IDROGEOLAB

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ACCREDIA 00384 Alessandria, IT
ISO 4832 ISO 21527-1 ISO 21527-2 ISO 11731 ISO 16649-2 + 3 more
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IDROLAB CONSULT S.a.S. di Romano Antonio Marco & C.

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ACCREDIA 00782 Trapani, IT
DIN ISO 16649-2 DIN EN ISO 4833-1 DIN EN ISO 11290-1 DIN EN ISO 21528-2 DIN EN ISO 18593 + 3 more
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IFB Eigenschenk

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DAkkS D-PL-19746-01-04 Deggendorf, DE
DIN 45691 DIN EN ISO 19458 DIN EN 932-1 DIN EN 932-2 DIN EN 933-1 + 3 more
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IFLb Laboratoriumsmedizin Berlin GmbH MVZ IFLb - Institut für Laboratoriumsmedizin Berlin

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DAkkS D-ML-13224-01-01 Berlin, DE
HbA1c Cortisol Testosteron Glucose Hämoglobin + 3 more
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IFN Schönow

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DAkkS D-PL-13367-01-00 Bernau bei Berlin OT Schönow, DE
Spermienkonzentration Spermienmorphologie Spermienmotilität Fremdzellen Spermienmembranintegrität + 2 more
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IFTS

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COFRAC 1-0847 Foulayronnes, FR
ISO 16232-2 ISO 16232-3 ISO 16232-4 ISO 16232-5 ISO 16232-6 + 3 more
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IGEAM CONSULTING SRL

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ACCREDIA 00264 Brescia, IT
DIN EN 13126-19 DIN EN ISO 16911-1 DIN EN 13284-1 DIN EN 14790 DIN EN 14792 + 3 more
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IGENIA

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ACCREDIA 00749 Salerno, 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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IGIENAIR LORRAINE

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COFRAC 1-6747 Atton, FR
DIN EN 14175-4 ISO 14644-3 BS EN ISO 14644-1:2015 NF EN 12469 Annexe G NF S 90-351 + 3 more
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IGIENAIR RHONE - ALPES

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COFRAC 1-6558 Bron, FR
DIN EN 14175-4 ISO 14644-3 BS EN ISO 14644-1:2015 NF EN 12469 Annexe G NF S 90-351 + 3 more
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IGIENAIR SUD EST

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COFRAC 1-6559 Aix-En-Provence, FR
DIN EN 14175-4 ISO 14644-3 BS EN ISO 14644-1:2015 NF EN 12469 Annexe G NF S 90-351 + 3 more
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IGR Institut für Glas- und Rohstofftechnologie

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DAkkS D-PL-20043-01-00 Göttingen, DE
DIN EN ISO 2719 DIN EN 13346 DIN EN 1388-2 DIN 51086-2 DIN ISO 4802-2 + 3 more
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IGT - Inbetriebnahmegesellschaft Transporttechnik

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DAkkS D-PL-19130-01-00 Salzgitter, DE
EN 50128 EN 50716
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IHP Institut für Hämostaseologie und Pharmakologie MVZ

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DAkkS D-ML-20687-01-00 Berlin, DE
Ethanol Digitoxin Digoxin Testosteron Aminosäuren + 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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