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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anemos Gesellschaft für Umweltmeteorologie

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DAkkS D-PL-17580-01-00 Reppenstedt, DE
DIN ISO 9613-2 * IEC 61400-12-1 * IEC 61400-50 * IEC 61400-50-1 * IEC 61400-50-2 * + 3 more
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bactologicum

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DAkkS D-PL-22114-01-01 Hamburg, DE
10/1500 DIN EN IEC 60601-2-75 IEC 60127-6 DIN EN 1040 DIN EN 13697 + 3 more
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bfq Qualitäts-Kalibrierservice

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DAkkS D-K-15056-01-00 St. Georgen, DE
Railway maintenance — track geometry (EN DIN EN ISO 3650:1999 Kalibrierung der 0,01 mm Optische > 300 mm + 3 more
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biomedis Kalibrierservice

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DAkkS D-K-18768-01-00 Gießen, DE
Vickers hardness test (ISO 6507) Railway braking — urban guided transport Railway vehicle body structural requirem Thermoelementsensor* meter, direkt anzeigende + 3 more
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biovis Diagnostik MVZ

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DAkkS D-ML-13188-01-01 Limburg a. d. Lahn- Eschhofen, DE
tration von Harnsäure tration von Harnstoff HbA1c Cortisol Hydroxy-progesteron + 3 more
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cetecom advanced

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DAkkS D-PL-12047-01-01 Saarbrücken, DE
ISO 20653 DIN EN 50155 DIN EN IEC 60068-2-11 DIN EN 60068-2-14 DIN EN 60068-2-30 + 3 more
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crashtest-service.com

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DAkkS D-PL-17359-01-00 Münster, DE
DIN EN 1317-1* DIN EN 1317-2* DIN EN 1317-3* DIN V ENV 1317-4* DIN CEN/TS 1317-7* + 3 more
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wernecke Feuchtemesstechnik GmbH Kalibrierlabor

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DAkkS D-K-19202-01-00 Strausberg, DE
Railway braking — urban guided transport meter, direkt anzeigende *) > 30 % > 60 % hygrometrische + 3 more
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eco-INSTITUT Germany

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DAkkS D-PL-20051-01-01 Köln, DE
DIN EN ISO 717-1 DIN EN 717-3 DIN ISO 16000-3 DIN ISO 16000-6 DIN EN ISO 16000-9 + 3 more
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esz AG calibration & metrology

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DAkkS D-K-15019-01-01 Landkreis Fürstenfeldbruck, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) Technical cleanliness of fluid system co Railway braking — urban guided transport + 3 more
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eumetron

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DAkkS D-K-15151-01-01 Aalen, DE
Railway maintenance — track geometry (EN auch Vor-Ort Kalibrierung Koordinatenmesstechnik DIN EN ISO 3650:1999 133 mm + 3 more
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europascal

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DAkkS D-K-15055-01-01 Hanau, DE
Railway braking — urban guided transport Railway vehicles — specific test require - Gleichspannung - Gleichstromstärke - Gleichstromwiderstand + 3 more
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gbd TEC

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DAkkS D-PL-23168-01-00 Kissing, DE
ASTM E283/E283M-19 ASTM E 330/E330M-14 ASTM E 331-00(2023) UNE-EN 12153 UNE-EN 12155 + 3 more
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halstrup-walcher

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DAkkS D-K-21048-01-00 Kirchzarten, DE
positiver Überdruck 1) In den CMC sind die erweiterten Messu Positiver Überdruck p e Positiver und negativer
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i2 FAST

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UKAS 10852 Hemel Hempstead, GB
ISO 21527-1 ISO 21527-2 DIN EN ISO 11290-2 DIN 53483-2 DIN EN ISO 6888-1 + 3 more
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iKM Service

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DAkkS D-K-21115-01-00 Zwickau, DE
Industrielle Messtechnik ≤ 860 mm GmbH, Oberkochen, D Steuerungssoftware Messvolumen mit
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iLF Magdeburg

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DAkkS D-PL-18869-01-01 Magdeburg, DE
ISO 3795 DIN 75200 DIN EN ISO 1463 DIN EN ISO 2812-1 DIN EN ISO 2813 + 3 more
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iRhythm Technologies

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UKAS 30733 Bagshot, GB
Cardiac Science | Reporting
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ifm prover gmbh Sensorik für die Prozeß- und Verfahrenstechnik

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DAkkS D-K-17060-01-00 Tettnang, DE
Railway pantographs — requirements for m > 35 bar bis Taupunkttemperatur Positiver Überdruck p e (ein- oder mehrgängige + 3 more
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ifn Forschungs- und Technologiezentrum GmbH Prüf- und Umweltlaboratorium

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DAkkS D-PL-18800-01-03 Elsteraue OT Tröglitz, DE
rs738409 DIN EN ISO 20846 DIN EN ISO 2719 DIN EN ISO 6245 DIN EN 12879 + 3 more
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ifp-labs UK West Yorkshire

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UKAS 1916 Hebden Bridge, GB
DIN ISO 11665-4 ISO 11290-1 ISO 11290-2 ISO 21528-2 ISO 22964 + 3 more
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ift Rosenheim

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DAkkS D-K-11349-01-02 Rosenheim, DE
Vickers hardness test (ISO 6507) Railway brake — anti-slide device (UIC 5 Railway brake — magnetic track brakes (U Railway brakes — conditions for homologa Railway brakes — disc brake pads (UIC 54 + 3 more
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ift Rosenheim

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DAkkS D-PL-11349-01-01 Rosenheim, DE
N334K rs7840951 A>C rs34018205 ID179 OMIM# 614024 C-KIT Ex17 N822 + 3 more
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iki Institut für Krankenhaushygiene und Infektionskontrolle

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DAkkS D-PL-21129-01-03 Gießen, DE
10/1500 DIN EN ISO 19458 DIN EN ISO 10523 (C 5) DIN EN 27888 (C 8) DIN EN ISO 5667-3 (A 21) + 3 more
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imat-uve

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DAkkS D-PL-14052-01-01 Mönchengladbach, DE
Bauart wie GR 1482 17 I/D rs1799752 AK gegen BP 180 rs2066845 OMIM# 188400, 192430 + 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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