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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21 Countries

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IEC 61010-1 : 2010 IEC 60529: 1989 DIN EN 13463-1 DIN 50104 DIN EN 13012 + 3 more
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Ethanol Digoxin Cortisol Glucose CA 125 + 3 more
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DC Resistance Hydraulic pressure (gauge) DC VOLTAGE Generation (continued) Measurement (continued) + 3 more
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UKAS 20070 Cambridge, GB
routine RESPONSE: complex Routine Hearing Services: Otoscopy Hearing Diagnostic History Taking + 3 more
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UKAS 8027 Cambridge, GB
Digoxin HbA1c Cortisol Glucose Biotinidase + 3 more
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UKAS 23111 Trumpington, GB
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UKAS 0789 Great Dunmow, GB
Total Harmonic Distortion FREQUENCY Sound Calibrators based: Microphones + 3 more
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UKAS 1079 Gloucestershire, GB
IEC 60512-17-1 ISO 18787 ISO 21527-2 ISO 4833-1 ISO 7932 + 3 more
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UKAS 8985 Cardiff, GB
Ferritin Erythropoietin Folate ABO Measurement + 3 more
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UKAS 8989 Cardiff, GB
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UKAS 8987 Cardiff, GB
Helicobacter pylori BK-Virus Cytomegalovirus MSH6 Immunoglobulin A + 3 more
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UKAS 7914 Willsbridge, GB
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UKAS 1643 Chelmsford, GB
(cdt), Deletion an Pos 117 (HSG 248) – 2021 (PCM) based on HSG 248 BS 6068-4.12:1998 (withdrawn)
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UKAS 9685 Watford, GB
S 100 PSA CD15 CD45 CD5 + 3 more
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UKAS 0822 Southam, GB
Hydraulic pressure (gauge) TEMPERATURE AC CURRENT Calibration of pressure Gas pressure (gauge) + 3 more
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UKAS 9966 Isleworth, GB
Pure Tone Audiometry Tympanometry Impression Taking Hearing Aid Fitting Hearing Aid Diagnostics and Adjustments + 3 more
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UKAS 8714 Calow, GB
Audiology | Adult Hearing Services: Audiology | Otoscopy Audiology | Impression Taking Audiology | Hearing Aid Fitting Audiology | Real Ear Measurement + 3 more
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UKAS 9344 London, GB
HbA1c Cortisol Glucose AMH CA 125 + 3 more
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UKAS 6536 Leicester, GB
(HSG 264, 2012) Surveying for asbestos in premises
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UKAS 27641 London, GB
Location details | Activity HUMAN BODY FLUIDS Biochemistry examinati clinical diagnosis | DxC700 Beckman coul clinical diagnosis | Access-2 Beckman Co clinical diagnosis | Immunossay Method + 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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