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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DAkkS D-ML-13130-02-00 Tübingen, DE
Ethanol Digitoxin Digoxin HbA1c Aldosteron + 3 more
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DAkkS D-ML-13130-01-00 Tübingen, DE
Kapseltyp B, Neisseria meningitidis Staphylococcus aureus Cryptococcus neoformans aerob wachsende Bakterien Bakterien, Sprosspilze + 3 more
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DAkkS D-ML-13130-03-01 Tübingen, DE
Anti-HBc Anti-HBe Anti-HBs CMV Standort: Albert-Schweitzer-Campus + 3 more
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DAkkS D-ML-13130-08-01 Tübingen, DE
Regionen; SNV, Indels: AKT1, APC, BRAF, CTNNB1, EGFR, ERBB2, FB AKT1, EGFR, ERBB2, ERBB3, ESR1, FBXW7, K Tumorsuppressorgene: APC, FBXW7, PTEN, T Tumor-Varianten mit niedriger + 2 more
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DAkkS D-ML-13130-09-01 Tübingen, DE
Regionen; SNV, Indels: AKT1, APC, BRAF, CTNNB1, EGFR, ERBB2, FB AKT1, EGFR, ERBB2, ERBB3, ESR1, FBXW7, K Tumorsuppressorgene: APC, FBXW7, PTEN, T Tumor-Varianten mit niedriger + 3 more
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DAkkS D-ML-13130-05-00 Tübingen, DE
PM-Scl Transglutaminase-IgA-Ak Tryptase Dermatophyten Candida albicans + 3 more
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DAkkS D-ML-13294-09-01 Ulm, DE
Zelldifferenzierung Albumin Ferritin CMV-IgG-Antikörperindex Zellzahlbestimmung + 3 more
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DAkkS D-ML-13294-08-00 Ulm, DE
a), b) Zelldifferenzierung CD34+ Stammzellen Dysplasie. X-chromosomal G6PC1; Glykogen-Speicherkrankheit + 3 more
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DAkkS D-ML-13294-03-01 Ulm, DE
Chromosomenstörungen Whole Exome: SNV, CNV Fragiles X-Syndrom: FMR1 Multiple Endokrine Neoplasie Cri-du-chat-Syndrom + 3 more
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DAkkS D-ML-13294-07-00 Ulm, DE
Streptokokken Cryptococcus neoformans MRSA Dermatophyten Clostridioides difficile Toxin + 3 more
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DAkkS D-PL-13294-06-00 Ulm, DE
Retikulozyten Zelldifferenzierung Zellzahl PNH Differentialblutbild + 3 more
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DAkkS D-ML-13294-01-01 Ulm, DE
(ein- oder mehrgängige Absolutdruck tration von Harnsäure tration von Harnstoff Digitoxin + 3 more
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DAkkS D-ML-13220-01-01 Homburg, DE
(ein- oder mehrgängige Ethanol Absolutdruck tration von Harnsäure tration von Harnstoff + 3 more
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DAkkS D-ML-13161-02-00 Göttingen, DE
angeborener Chromosomensatz Familiärer Brust- und Eierstockkrebs Catecholaminerge polymorphe hypogonadotroper Arrhythmien (Panel) (ACTC1, ACTN2, BAG3, + 3 more
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DAkkS D-ML-13161-01-00 Göttingen, DE
Ethanol Digitoxin Digoxin Aldosteron Cortisol + 3 more
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DAkkS D-PL-13161-01-00 Göttingen, DE
Ethanol tration von Harnsäure Digitoxin Digoxin Aldosteron + 3 more
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DAkkS D-ML-13161-05-00 Göttingen, DE
Ethanol Digitoxin Digoxin Aldosteron Cortisol + 3 more
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DAkkS D-ML-13161-06-00 Göttingen, DE
angeborener Chromosomensatz Familiärer Brust- und Eierstockkrebs Catecholaminerge polymorphe hypogonadotroper Arrhythmien (Panel) (ACTC1, ACTN2, BAG3, + 3 more
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DAkkS D-ML-13193-04-00 Rostock, DE
Ethanol Creatinin Digitoxin Digoxin Aldosteron + 3 more
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DAkkS D-ML-13193-01-00 Rostock, DE
Staphylococcus aureus Cryptococcus neoformans MRSA Bakterien, Sprosspilze Bakterien, Pilze + 3 more
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DAkkS D-PL-13258-03-01 Mainz, DE
DIN EN ISO 19458 DIN 1946-4 DIN EN ISO 10523 (C 5) DIN EN 27888 (C 8) DIN EN ISO 10304-1 (D 20) + 3 more
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DAkkS D-ML-13258-04-00 Mainz, DE
Anti-Thyreoglobulin-Antikörper [Anti-TG] Anti-Thyreoperoxidase Antikörper [Anti-TPO] Anti-TSH-Rezeptor Antikörper + 3 more
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DAkkS D-ML-13258-01-01 Mainz, DE
PTPN11 angeborener Chromosomensatz BRCA-Panel; BRCA1, BRCA2 Lissenzephalie Hereditäre spastische Paraplegie + 3 more
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DAkkS D-ML-13258-03-00 Mainz, DE
pH-Messgeräte 1,68 pH bis 10 pH Creatinin Digitoxin Cortisol Hämoglobin + 3 more
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BELAC 639-TEST Louvain-La-Neuve, BE
Méthode interne développée par Panasonic
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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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