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
3,963 Accredited labs
21 Countries

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UKAS 8555 Carlisle, GB
Ethanol Digoxin Cortisol AFP CA 15-3 + 3 more
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UKAS 7691 Shotton, GB
(HSG 248) โ€“ 2021 (PCM) based on HSG 248 staining based on HSG 248. NSDOC 47 based on HSG 248
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UKAS 7896 Hardwick, GB
Digoxin Cortisol Glucose CEA Gentamicin + 3 more
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UKAS 9587 Hardwick, GB
Amyloid | Congo Red Haemosiderin | Perls Reticulin fibres | Reticulin Tumour suppressor gene | P53 Ovarian tumour marker | CA125 + 3 more
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UKAS 8055 Edith Cavell Campus, GB
Ethanol Digoxin HbA1c Cortisol Glucose + 3 more
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UKAS 8115 Northampton, GB
Ethanol Glucose Gentamicin Phenytoin Calcium + 3 more
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UKAS 25041 Northampton, GB
EXAMINATION | Regulator Code of Practice Serenity SARC
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UKAS 9902 Salford, GB
Ethanol Cortisol Glucose CEA Gentamicin + 3 more
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UKAS 9947 Salford, GB
MCH MCHC MCV G6PD Measurement + 3 more
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UKAS 9699 Salford, GB
Helicobacter pylori Antigen Staphylococcus aureus (MRSA) Detection of : | Manual Indirect Combined Nose and throat swab Covid-19 R B, Respiratory-Syncytial-Virus (RSV) + 3 more
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UKAS 8146 Royal Oldham Hospital, GB
Antithrombin D-Dimer Ferritin Protein C Protein S + 3 more
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UKAS 9880 Oldham, GB
Demonstration of: | Operation and Mainte Neuroendocrine cells Macrophages Normal and neoplastic epithelia Andrological examination activities for + 3 more
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UKAS 8913 Oldham, GB
Enterovirus RSV VZV Adenovirus HSV-1 + 3 more
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UKAS 8331 Salford, GB
Ethanol Cortisol Glucose CEA Gentamicin + 3 more
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UKAS 8172 Salford, GB
Audiology | Adult Hearing Services: Audiology | Otoscopy Audiology | History Taking Audiology | Pure Tone Audiometry Audiology | Impression Taking + 3 more
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UKAS 8601 Oldham, GB
Whole Blood | Oxyhaemoglobin Whole Blood | Methaemoglobin Serum | IA Serum | Procalcitonin Using chemilumines Serum | PSA Using chemiluminescent 2-sit + 3 more
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UKAS 8111 Antrim, GB
Ethanol Digoxin HbA1c Cortisol Glucose + 3 more
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UKAS 8198 Belfast, GB
Lutheran: Lua,Lub | BTF-EAL3-25 Serological detection of: | Automated Im MNS-s: Antiโ€“M, N, S, s Typing of: Human Platelet Antigen (HPA) Kell: K | QE-BT-AUT009 + 3 more
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UKAS 8833 Grimsby, GB
Digoxin Cortisol Glucose CA 19-9 CEA + 3 more
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UKAS 9693 North Shields, GB
Procalcitonin RSV SARS-CoV-2 EBV VCA IgG EBV VCA IgM + 3 more
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UKAS 9585 North Shields, GB
Digoxin HbA1c Cortisol Glucose AFP + 3 more
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UKAS 8057 North Shields, GB
Calcium Helicobacter pylori Iron Fungi Collagen + 3 more
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UKAS 8998 Portadown, GB
(HSG 248) โ€“ 2021 staining based on HSG 248 (PCM) based on HSG 248 SOP-12, based on HSG 248
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UKAS 8031 Nottingham, GB
Digoxin HbA1c Cortisol Glucose Biotinidase + 3 more
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UKAS 8755 Nottingham, GB
Hepatitis E IgG Hepatitis E IgM Parvovirus IgG Parvovirus IgM HIV-1-RNA + 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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