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
๐Ÿ‡ง๐Ÿ‡ช NBN EN 14531-1 ๐Ÿ‡ฉ๐Ÿ‡ช DIN EN 14531-1 ๐Ÿ‡ฌ๐Ÿ‡ง BS EN 14531-1 ๐Ÿ‡ซ๐Ÿ‡ท NF EN 14531-1 ๐Ÿ‡ฎ๐Ÿ‡น UNI EN 14531-1 ๐Ÿ‡ช๐Ÿ‡ธ UNE EN 14531-1 ๐Ÿ‡ณ๐Ÿ‡ฑ NEN EN 14531-1
3,687 Accredited labs
21 Countries

Showing 26โ€“50 of 783 labs

UKAS 8441 London, GB
Upper GI | Impedance Breath Tests (13C Urea, Acetate, Octanoi Postal and In Clinic Breath Tests โ€“ Foil Lower GI | Biofeedback Therapy Lower GI | Defecating Proctograms
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UKAS 0666 Pontypridd, GB
(enzephalomyopathische Form DC Resistance Hydraulic pressure (gauge) TEMPERATURE DC VOLTAGE + 3 more
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UKAS 6093 Scorrier, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248
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UKAS 1011 Warrington, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248 OM H-3 based on ISO 9698:2019 ISO 9696:2017 and ISO staining based on HSG 248.
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UKAS 2713 Newhaven, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248
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UKAS 0934 Neath, GB
DIN EN 13126-19 DIN EN 13284-1 DIN EN 14790 DIN EN 14792 IEC 60519-11 + 3 more
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UKAS 4147 Bellshill, GB
DIN EN ISO 17141 DIN EN ISO 15883-4 DIN EN 16442 requirements of HTM 01-06 Part E BS EN ISO 14644-2:2015:Part 2 + 3 more
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UKAS 7874 Caerleon, GB
abs Ethanol Digoxin HbA1c Cortisol + 3 more
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UKAS 10338 Newport, GB
Helicobacter pylori Squamous-cell-carcinoma Fungi Measurement Demonstration of: | Operation and Mainte + 3 more
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UKAS 8630 London, GB
Anthony Nolan Lymph node | HLA-DRB1 DOC293 Lymph node | CCR5 ฮ”32 DOC3755 Lymph node | HFE Cells | RSC Buccal swab DNA kit TM479 + 3 more
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UKAS 27746 Blackley, GB
DIN EN 1650 DIN EN 13624 DIN EN 16615 DIN EN 1276
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UKAS 10243 Royston, GB
(PCM) based on HSG 248 Analystsโ€™ Guide (HSG 248)
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UKAS 2230 Prestwick, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248 LSD.ASB.02 based on HSG 248 LSD.ASB.04 based on HSG 248
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UKAS 10194 Hockliffe, GB
(PCM) based on HSG 248 Analystsโ€™ Guide (HSG 248
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UKAS 0472 Grays, GB
ASB/SOP/OM8 based on HSG 248 (HSG 248) โ€“ 2021 QOP03 based on HSG 248 (PCM) based on HSG 248 (PCM) based on HSG 248) + 1 more
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UKAS 10792 Mansfield Woodhouse, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248
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UKAS 4234 Slough, GB
(HSG 264, 2012) (HSG 248) โ€“ 2021 (PCM) based on HSG 248
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UKAS 2544 Hebburn, GB
(HSG 248) โ€“ 2021 QOP03 based on HSG 248 (PCM) based on HSG 248 QOP01 based on HSG 248
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UKAS 32982 Sunderland, GB
(PCM) based on HSG 248 M3 based on HSG 248 (HSG 248) โ€“ 2022 UP02 based on HSG 248 UP03 based on HSG 248 and HSG
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UKAS 0438 London, GB
(HSG 264, 2012)
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UKAS 30612 Cambridge Biomedical Campus, GB
BetriebsรผbertragungsmaรŸ Hydraulic pressure (gauge) AC CURRENT RELATIVE HUMIDITY DC CURRENT + 3 more
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UKAS 4696 Rochford, GB
(PCM) based on HSG 248 Analystsโ€™ Guide (HSG 248) (HSG 248) โ€“ 2021 Asbestos: The
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UKAS 21002 Badersfield, GB
OMIM*601129, CYP2C9 OMIM*601130, CYP2C19 OMIM*108330, CYP1A2 OMIM*124060, CYP2B6 OMIM*123930, CYP2C8 + 3 more
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UKAS 0612 Orpington, GB
(PCM) based on HSG 248 (HSG 248) โ€“ 2021 ) Surveying) based on HSG 248
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UKAS 0389 Barrow-in-Furness, GB
BetriebsรผbertragungsmaรŸ DC Resistance Hydraulic pressure (gauge) TEMPERATURE Measurement + 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 โ€” Braking performance
  • UIC 541-01 Railway brakes โ€” Brake pads โ€” Part 1: Friction material specification
  • EN 14531-1 Railway applications โ€” Safety requirements for the design of rolling stock

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