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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DAkkS D-PL-11104-01-02 000000 Hong Kong S.A.R., HK
(NM_001718: c.1-c.500) DIN EN 1371-2 DIN EN ISO 2719 DIN EN 16715 ASTM D 1322 + 3 more
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DAkkS D-PL-14153-02-01 München, DE
Occupational noise exposure measurement Vibration measurements near traffic — me Vibration measurements near traffic — ev Low-frequency noise measurement and asse Acoustics — tonality assessment (DIN 456 + 3 more
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TÜV SÜD Industrie Service GmbH Abt. IS-TAK-MUC

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DAkkS D-K-14153-01-00 München, DE
Vickers hardness test (ISO 6507) Railway braking — urban guided transport Temperaturmessgrößen Widerstandssensor * > 250 °C Absolutdruck Pabs + 3 more
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TÜV SÜD Industrie Service GmbH Abteilung Chemische Analytik

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DAkkS D-PL-14153-06-06 München, DE
ASTM E 648 DIN EN 61646 DIN EN 55103-2 DIN EN ISO 7971-3 DIN EN ISO 4120 + 3 more
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TÜV SÜD Industrie Service GmbH Prüflabor Technische Ausrüstung der Abteilungen Kälte- und Klimatechnik sowie Feuerungs- und Wärmetechnik

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DAkkS D-PL-14153-04-00 München, DE
Sound power level determination — genera Sound power — in-situ using reference so Sound intensity — scanning method (ISO 9 Whole-body vibration — evaluation of hum 100 HV 125 + 3 more
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DAkkS D-PL-11321-01-02 Frankfurt/Main, DE
IEC 60335-1: 2010 DIN EN 62368-1: 2016 EN IEC 62368-1 IEC 62368-3 DIN EN 60950-1 + 3 more
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DAkkS D-PL-11321-09-01 Garching, DE
5/750 blaOXA515, blaOXA519, blaOXA546, blaOXA5 rs111033565 rs111033568 ID174 + 3 more
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DAkkS D-PL-11321-10-00 Hamburg, DE
5/750 (NM_001718: c.1-c.500) DIN EN 1371-1 DIN EN IEC 61851 DIN EN ISO 80601-2-70 + 3 more
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DAkkS D-PL-11321-12-01 Hannover, DE
DIN EN 62368-1: 2016 EN IEC 62368-1 IEC 62368-3 DIN EN 60950-22: 2006 IEC 60950-22: 2016 + 3 more
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DAkkS D-PL-11321-14-01 München, DE
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DAkkS D-PL-11321-22-01 Hannover, DE
DIN EN 60601-1 IEC 60601-1 DIN EN 60601-2-52 IEC 60601-2-52 IEC 60601-2-46 + 3 more
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DAkkS D-PL-11321-13-01 Frankfurt am Main, DE
DIN EN ISO 7971-3 DIN EN 14389 DIN 53160-1 DIN 53160-2 DIN EN 61340-4-5 + 3 more
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TÜV SÜD Product Service GmbH Laborbereich Reifen & Räder

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DAkkS D-PL-11321-16-02 Garching, DE
DIN EN 60068-2-14 DIN EN IEC 60068-2-38 DIN EN 60068-2-78 IEC 60068-2-1 IEC 60068-2-2 + 3 more
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TÜV SÜD Rail GmbH Prüfstelle für Schienenfahrzeuge

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DAkkS D-PL-11190-01-01 Halle, DE
Sound power — engineering methods for sm Sound power — in-situ using reference so Sound system equipment — speech transmis Whole-body vibration — evaluation of hum Railway ride comfort for passengers (EN + 3 more
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TÜV SÜD Rail GmbH Prüfstelle für Schienenfahrzeuge

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DAkkS D-K-11190-02-01 Berlin, DE
Railway brake — magnetic track brakes (U - Gleichspannung auch Vor-Ort Kalibrierung Kraft 100 kN + 3 more
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TÜV SÜD Rail GmbH Prüfstelle für Sicherheitsbauteile

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DAkkS D-PL-11190-08-01 München, DE
ID280 DIN EN ISO 2812-1 DIN EN ISO 2813 IEC 60335-1: 2010 IEC 61131-2: 2020 + 3 more
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TÜV Technische Überwachung Hessen GmbH EMV-Labor

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DAkkS D-PL-14137-02-01 Kassel, DE
VDI/VDE/DGQ 2618 DIN EN 50155 VDE 0115-200 IEC 61000-4-2: 2008 IEC 61000-4-3: 2006 + 3 more
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TÜV Technische Überwachung Hessen GmbH Werkstoffprüflabor

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DAkkS D-PL-14137-09-02 Frankfurt am Main, DE
229600 (A150P u. A175 DIN EN 10160 DIN EN ISO 16810 DIN EN ISO 13588 DIN EN ISO 17637 + 3 more
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TÜV Thüringen Anlagentechnik GmbH & Co. KG Kalibrierlabor

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DAkkS D-K-16047-01-01 Arnstadt, DE
Railway braking — urban guided transport Railway vehicle body structural requirem Gleichstrom- und Niederfrequenzmessgröße - Gleichspannung - Gleichstromstärke + 3 more
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TÜV Thüringen Anlagentechnik GmbH & Co. KG Prüflabor für Gerätesicherheit

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DAkkS D-PL-16047-06-00 Arnstadt, DE
DIN EN 12102-2 DIN EN 1728 DIN EN 1729-2 DIN 4547-1 DIN 4547-2 + 3 more
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ACCREDIA 01253 Firenze, IT
DIN EN 1484 ISO 11731 ISO 6222 ISO 7899-2 ISO 9308-1 + 3 more
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ACCREDIA 02131 Cura Carpignano, IT
ISO 10993-12 BS EN ISO 11737-1:2018 ISO 21149:2017+Amd1:2022 ISO 16212:2017+Amd1:2022 ISO 10993-5 + 3 more
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ACCREDIA 00579 Firenze, IT
ISO 18787 ISO 4832 ISO 21527-1 ISO 21527-2 DIN EN ISO 4833-1 + 3 more
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UG - LABORATORIUM MAGNEL-VANDEPITTE VOOR BOUWKUNDIGE CONSTRUCTIES EN BOUWMATERIALEN

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BELAC 220-TEST Gent-Zwijnaarde, BE
NBN EN 12390-3 NBN EN 12504-1 NBN B 15-215 Proefmachines in druk (in situ) Voorspanapparatuur in trek (in situ) + 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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