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
3,525 Accredited labs
21 Countries

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UKAS 9308 Derby, GB
Ethanol Aminotransferase Digoxin Cortisol Glucose + 3 more
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UKAS 22747 Leicester, GB
Ethanol Digoxin HbA1c Cortisol Glucose + 3 more
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UKAS 8100 Leicester General Hospital, GB
DNA Extraction DNA quantification Histocompatibility and Immunogenetic exa Cross-matching Detection of IgG HLA to donor T and B ly + 3 more
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UKAS 8376 Leicester Royal Infirmary Square, GB
Ethanol Digoxin HbA1c Cortisol Glucose + 3 more
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UKAS 8069 Infirmary Square, GB
Measurement BRAF KRAS EGFR Cytogenetics examination activities for + 3 more
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UKAS 9351 Stoke on Trent, GB
Digoxin Cortisol Glucose Benzodiazepine CEA + 3 more
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UKAS 8823 Stoke-on-Trent, GB
Fibrinogen Squamous-cell-carcinoma C3-Complement Special staining for identification of: IgA + 3 more
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UKAS 8083 Crewe, GB
Digoxin Cortisol Glucose Benzodiazepine Gentamicin + 3 more
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UKAS 8520 Stoke-on-Trent, GB
SARS-CoV-2 EBV VCA IgG EBV VCA IgM Mumps IgG Coronavirus 229E + 3 more
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UKAS 8075 Macclesfield, GB
Fibrinogen Measurement Direct Antiglobulin Test: detection of | P blood group antibodies: | Or Lutheran blood group antibodies: | Ortho + 3 more
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UKAS 9300 Stoke on Trent, GB
Rheumatoid Factor Quantitation of: | Roche Cobas ISE modul Specific IgE to: | IPRL18 Immunology examination activities for th Drugs: Erythromycin + 3 more
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UKAS 8056 Crewe, GB
D-Dimer Fibrinogen Measurement ABO and RhD systems: | • O Rh D positive Haematology examination activities for t + 3 more
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UKAS 8802 Stoke on Trent, GB
D-Dimer Fibrinogen Protein C Anti-Xa Platelets + 3 more
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UKAS 9556 Selly Oak, GB
CRP Grapefruit Orange ENA-Screen Rheumatoid Factor + 3 more
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UKAS 1660 Salford, GB
DIN EN 12664 DIN EN 12667 DIN EN 12939 ISO 13166 DIN EN ISO 13162 + 3 more
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UKAS 0801 The Crescent, GB
Pistonphones based: Microphones LS2/WS2 microphones Reverberation Time
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DAkkS D-PL-19045-02-00 Kassel, DE
DIN EN 12350-1 DIN EN 12350-6 DIN EN 12390-2 DIN EN 12390-3 DIN EN 12390-5 + 3 more
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DAkkS D-ML-13082-01-00 Regensburg, DE
Peutz-Jeghers-Syndrom (STK11) Achromatopsie (Panel) (ATF6, CNGA3, CNGB Albinismus (OCA2) Alport-Syndrom (Panel) (COL4A1, COL4A3, Amyloidose (Panel) (APOA1, APOA2, APP, B + 3 more
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DAkkS D-PL-11027-01-01 Stuttgart, DE
Sound power — engineering methods for sm Sound intensity — scanning method (ISO 9 (-13910T>C) rs4988235 - PiM rs6647, PiZ rs28929474, rs17580 Laktoseintoleranz (LCT -14055 + 3 more
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DAkkS D-K-11027-01-02 Stuttgart, DE
Technical cleanliness of fluid system co Technical cleanliness — particle contami Sound power level determination — genera Sound power — engineering methods for sm Sound power — engineering method using a + 3 more
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DAkkS D-PL-11027-04-01 Stuttgart, DE
rs738409 DIN EN 10160 DIN EN ISO 16810 DIN EN ISO 17637 DIN EN 13018 + 3 more
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DAkkS D-ML-13154-03-00 Aachen, DE
Ethanol Creatinin Digitoxin Digoxin Aldosteron + 3 more
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DAkkS D-ML-13154-01-01 Aachen, DE
Hämoglobin Thrombozyten MCV Antikörpersuchtest Blutgruppenbestimmung + 3 more
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DAkkS D-ML-13125-01-00 Bonn, DE
Retikulozyten Thrombinzeit AFP Homocystein Kreuzprobe + 3 more
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DAkkS D-ML-13125-03-01 Bonn, DE
APC angeborener Chromosomensatz Demenz Van der Woude-Syndrom Bannayan-Ruvalcaba-Riley-Syndrom + 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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