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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PFIZER SA - CLINICAL RESEARCH UNIT BRUSSEL

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BELAC 653-TEST Anderlecht, BE
BEL-BRLAB04-WI04 Sysmex CS-2500 Coagulat CRU-LAB13-WI04
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ACCREDIA 01882 Orio al Serio, IT
DIN EN 60068-2-57 DIN EN 60068-2-64 DIN EN 61373 IEC 60068-2-6 DIN EN-60068-2-6 + 3 more
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PMI Service Srl

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ACCREDIA 02364 Arezzo, IT
ISO 10304-1 ISO 23695 APAT CNR IRSA 2060 Man 29 2003 ISPRA Man 117 2014
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PMK - GmbH (Prüfen+Messen+Kalibrieren)

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DAkkS D-K-17519-01-01 Niestetal, DE
Tensile testing of metallic materials (I Vickers hardness test (ISO 6507) Sound power — survey method (ISO 3746) > 2,0 bar > 0,0 bar + 3 more
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COFRAC 1-1033 Saint Symphorien, FR
DIN EN ISO 14780 DIN EN ISO 17831-1 DIN EN ISO 18122 DIN EN ISO 18134-2 DIN EN 1856-1 + 3 more
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ACCREDIA 00958 San Giovanni Lupatoto, IT
DIN EN 27888 ISO 4832 ISO 15214 DIN ISO 16649-2 DIN EN ISO 4833-1 + 3 more
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COFRAC 1-5948 Cognac, FR
NF X 43-050 NF X 43-269 NF X 43-269 - Annexe K NF X43-050 (parties utiles de ISO 16000-7 + 1 more
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ACCREDIA 02145 Rubiera, IT
ASTM E 1409-13 ASTM E3-11 ASTM E407-23 ASTM E1447-22 ASTM E8 + 1 more
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ACCREDIA 01573 Spresiano, IT
ISO 21527-2 DIN EN ISO 17141 DIN EN 868-5 ISO 11737-3 DIN EN ISO 4833-2 + 3 more
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PRIMORIS HOLDING cvba

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BELAC 057-TEST Gent, BE
NF EN ISO 13688 et méthode interne AOAC 963.15 Eigen methode Methode volgens instructies leverancier Denrées alimentaires d'origine végétale + 3 more
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PRINCES ITALIA S.p.A. - Laboratori LT

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ACCREDIA 00706 Latina, IT
DIN EN ISO 4833-1 DIN EN ISO 7932 BS EN 15662 DIN EN 13805 DIN EN ISO 14501 + 3 more
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PRISE D'AIR

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COFRAC 1-6799 Le Moule, FR
NF X 43-050 NF X 43-269 ISO 16000-7 FD X 46-033
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COFRAC 1-5789 Montois-La-Montagne, FR
NF X 43-050 NF X 43-269 NF X 43-269 - Annexe K NF X43-050 (parties utiles de ISO 16000-7 + 1 more
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PROCHEM SRL Studio Chimico Professionale

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ACCREDIA 02079 Ploaghe, IT
DIN EN 12457-2 EPA 6010 EPA 8270 EPA 3051 EPA 3540 + 3 more
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ENAC LE2092 Alcázar de San Juan, ES
OIV-MA-AS312-01 OIV-MA-AS2-01 OIV-MA-AS313-01 OIV-MA-AS313-26 OIV-MA-AS313-25 + 3 more
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PROGETTO ALIMENTI

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ACCREDIA 00635 Arezzo, IT
ISO 15214 DIN EN ISO 4833-1 DIN EN ISO 6579-1 ISO 11731 ISO 11290-1 + 3 more
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PROGRAMMA AMBIENTE SrL

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ACCREDIA 00462 Siracusa, IT
ISO 4832 DIN EN ISO 4833-1 DIN EN ISO 6579-1 DIN EN ISO 11290-1 DIN EN ISO 21528-2 + 3 more
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PROGRESS

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ACCREDIA 00475 Milano, IT
DIN EN 13725:2003-07 und Berichtigung UNI EN 13725
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PROMESS Gesellschaft für Montage- und Prüfsysteme

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DAkkS D-K-21209-02-00 Berlin, DE
Vibration measuring instruments — test m Railway brake — magnetic track brakes (U nur Vor-Ort-Kalibrierungen entsprechen nicht der DIN 51220 + 3 more
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PROMOCOSENZA - DIVISIONE LABORATORIO CALAB

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ACCREDIA 00280 Montalto Uffugo, IT
COI/T.20/Doc n 35/rev 1 2017 COI/T.20/Doc n 33/rev 1 2017 COI/T.20/Doc n 34/rev 1 2017 COI/T.20/Doc n 19/rev 5 2019 OIV-MA-AS313-01 cap 5.2 R2015 + 3 more
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PROTEZIONE AMBIENTALE SrL

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ACCREDIA 00342 Alessandria, IT
ISO 4832 DIN EN ISO 6579-1 DIN EN ISO 7932 DIN EN ISO 11290-1 DIN EN 13126-19 + 3 more
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PROVINCIA AUTONOMA DI TRENTO AGENZIA PROVINCIALE PER LA PROTEZIONE DELL'AMBIENTE - SETTORE LABORATORIO

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ACCREDIA 00799 Trento, IT
DIN EN ISO 17294-2 DIN ISO 22036 DIN EN ISO 16911-1 DIN EN 14790 DIN EN 14792 + 3 more
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PRS LAB srl Unipersonale - Sede di Faloppio

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ACCREDIA 00983 Faloppio, IT
9 DIN EN 50155 IEC 61000-4-2: 2008 IEC 61000-4-3: 2006 IEC 61000-4-4: 2012 + 3 more
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PTS - Institut für Fasern & Papier g

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DAkkS D-PL-23019-01-01 Heidenau, DE
HABP2-Gen (c.1601G>A) rs7080536 rs11887534 DIN EN ISO 16535 DIN EN ISO 12759 DIN EN 303-7 + 3 more
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PTW - Freiburg Physikalisch-Technische Werkstätten Pychlau

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DAkkS D-K-15059-01-00 Freiburg im Breisgau, DE
Luftkerma Dosimetrie 5 mGy 2 mGy 100 µGy + 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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