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
🇩🇪 DIN EN 14531-1 🇬🇧 BS EN 14531-1 🇫🇷 NF EN 14531-1 🇮🇹 UNI EN 14531-1 🇪🇸 UNE EN 14531-1 🇳🇱 NEN EN 14531-1
1,560 Accredited labs
17 Countries

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DAkkS D-ML-13102-08-01 Frankfurt, DE
Thyreoidea stimulierendes Thyreotropes Hormon (TSH) 17-Hydroxyprogesteron Immunreaktives Trypsin Pancreatitis-assoziiertes + 3 more
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Adenovirus-Antigen Astrovirus Antigen Chikungunya-Virus-Antikörper Immunglobulin M (IgM) Coxsackie A9, A24, B, B1, B5, B6 Virus-A + 3 more
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D-Dimere Freies Protein-S Antigen Protein S Antigen frei vWV:Ag Hemmkörper + 3 more
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Basophile Basophile absolut Eosinophile Eosinophile absolut Erythrozyten + 3 more
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Charakterisierung von akuten Akuten Leukämien B-Zellzahl (Immunstatus manuelles Differentialblutbild Zellzahlbestimmung + 3 more
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DAkkS D-ML-13134-02-01 Freiburg, DE
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DAkkS D-ML-13134-03-01 Freiburg, DE
anti-CMV IgG anti-CMV IgM CMV IgG Avidität Chikungunya Virus IgG Chikungunya Virus IgM + 3 more
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DAkkS D-ML-13134-05-00 Freiburg, DE
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DAkkS D-ML-13134-10-01 Freiburg, DE
NGS-Panel-Analyse (SNVs, Indels CNVs), Gene: WDR73, WNT4, WNT5A, XRCC4, YY1, ZMPSTE24 PYCR1, RNF213, ROBO4, SETD5, SLC2A10, SL GPC3, HERC1, HIST1H1E, NFIX, OFD1, RNF13 + 3 more
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DAkkS D-ML-13134-06-01 Freiburg, DE
RPL27, RPL3, RPL31, RPL34, RPL35, RPL35A Diamond-Blackfan-Anämie ; DBA NOP10, PARN, RPA1, RTEL1, SAMD9, SAMD9L, Dyskeratosis congenita; DC Panel NOP10, PARN, POT1, RPA1, RTEL1, SAMD9, S + 3 more
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DAkkS D-ML-13134-09-00 Freiburg, DE
Urinstatus Leukozyten Neutrophile Granulozyten Eosinophyle Granulozyten Basophile Granulozyten + 3 more
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DAkkS D-ML-13134-07-00 Freiburg, DE
Differenzierung peripheres Erstellung eines Differentialblutbilds Differenzierung Knochenmark Pappenheim-Färbung Peroxidase-Reaktion + 3 more
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DAkkS D-ML-13134-12-00 Freiburg, DE
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DAkkS D-ML-13304-04-01 Marburg, DE
Anaerobier-Resistenz Bakterien-Resistenz Hefen-Resistenz Carbapenemasenachweis Cryptosporidien, Giardia + 3 more
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DAkkS D-ML-13304-03-00 Gießen, DE
Thrombozyten Zellzählung und -differenzierung Calcium, ionisiert Natriumchlorid Glukose + 3 more
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DAkkS D-ML-13304-07-01 Gießen, DE
DPYD-Genotypisierung vor 5 FU Therapie, SNV Polyposissyndrome (APC, BMPR1A, MUTYH, N (Custom made by TWIST), SNV Hereditärer Darmkrebs inklusive + 3 more
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DAkkS D-ML-13304-01-00 Gießen, DE
Thrombozytenaggregation Arachidonsäure Kollagen/Epinephrin Ristocetin Erythrozyten + 3 more
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DAkkS D-ML-13304-09-01 Marburg, DE
9-OH-Risperidon/Paliperidon Aripiprazol Citalopram Clozapin, Norclozapin Cyclosporin (CSA) + 3 more
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DAkkS D-ML-13304-08-01 Marburg, DE
Borrelia burgdorferi Chlamydophila pneumoniae Coxiella burnetii Toxoplasma gondii Adenovirus + 3 more
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DAkkS D-ML-13304-10-00 Marburg, DE
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DAkkS D-ML-13217-01-00 Halle (Saale), DE
Blutgruppe AB0 Rh-Faktor Rh-Formel Kell-Ag A-Untergruppe + 3 more
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DAkkS D-ML-13217-02-00 Halle (Saale), DE
Toxoplasmen-IgG Treponema pallidum-IgG anti-HBc AK anti-HBs AK anti-CMV IgG + 3 more
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DAkkS D-ML-13217-04-00 Halle (Saale), DE
DPYD (SNP-Analyse) JAK2 Kodon 617 Mutationsanalyse T-Zellklonalitätsanalyse (TCRG und TCRB) B-Zellklonalitätsanalyse (IGH, IGL, IGK) + 3 more
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DAkkS D-ML-13278-01-01 Hamburg, DE
Aminosäuren Second Tier Test IVA Screening (C5 -Carnitin Isobaren) 17-α-OH-Progesteron (17-OH-P) Biotinidase + 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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