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
1,323 Accredited labs
15 Countries

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DAkkS D-PL-14137-09-02 Frankfurt am Main, DE
DIN EN ISO 17640 DIN EN ISO 13588 DIN EN ISO 20601 DIN EN ISO 16828 DIN EN ISO 10863 + 3 more
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DAkkS D-K-16047-01-01 Arnstadt, DE
Widerstands- -25 °C Railway braking — urban guided transport –25 °C Railway vehicle body structural requirem Thermoelementsensor -25 °C + 3 more
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DAkkS D-PL-19381-01-02 Neu-Isenburg, DE
IEC 61851-1: 2010 IEC 61851-23 IEC 62109-1 IEC 62109-2 IEC 61010 + 3 more
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DAkkS D-K-19403-01-00 Grävenwiesbach, DE
Messschieber für 0 mm Außen-, Innen- und Bügelmessschrauben 0 mm Messuhren mit Feinzeiger + 3 more
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DAkkS D-ML-13082-01-00 Regensburg, DE
Achromatopsie (Panel) (ATF6, CNGA3, CNGB Albinismus (OCA2) Alport-Syndrom (Panel) (COL4A1, COL4A3, Amyloidose (Panel) (APOA1, APOA2, APP, B Arrhythmien (Panel) (ACTC1, ACTN2, BAG3, + 3 more
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DAkkS D-PL-11027-01-01 Stuttgart, DE
DIN EN 442-2 DIN EN 16430-1 DIN EN 16430-2 DIN EN 16430-3 DIN 4703-3 + 3 more
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DAkkS D-K-11027-01-02 Stuttgart, DE
Sound power — engineering method using a Sound power — survey method (ISO 3746) Sound power — in-situ using reference so Sound intensity — scanning method (ISO 9 Sound intensity — scanning method part 2 + 3 more
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DAkkS D-ML-13154-02-00 Aachen, DE
Syndrom/Silver-Russell-Syndrom) SMN1 (SMA) FMR1-Gen (fraX, POF, FXTAS) Charcot-Marie-Tooth-Erkrankung Cardiolipin (CMT) + 3 more
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DAkkS D-ML-13154-03-00 Aachen, DE
Adrenalin Dopamin 5-Hydroxyindolessigsäure Homovanillinsäure Noradrenalin + 3 more
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DAkkS D-ML-13154-02-01 Aachen, DE
(Long Read): SNV, CNV, Repeats FMR1-Gen (fraX, POF, FXTAS) Charcot-Marie-Tooth-Erkrankung Cardiolipin (CMT) GARS1, GDAP1, GJB1, HSPB1, IGHMBP2, LITA + 3 more
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DAkkS D-ML-13154-01-01 Aachen, DE
Leukozyten (WBC) Erythrozyten (RBC) Hämatokrit (HCT) MCV Thrombozyten + 3 more
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DAkkS D-ML-13125-01-00 Bonn, DE
Thrombozytenaggregation Agonisten: ADP, ADP-PGE1, heparininduzierter Antikörper Heparin induzierter Thrombozytopenie Typ II (HIT II) + 3 more
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DAkkS D-ML-13125-03-01 Bonn, DE
Bannayan-Ruvalcaba-Riley-Syndrom (institutseigene Erweiterung des Illumina TruSight Cancer Panel): PTEN, AKT1, PIK3CA, SEC23B Syndrom (institutseigene + 3 more
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DAkkS D-ML-13125-02-00 Bonn, DE
Amiodaron, Desethylamiodaron HbA1c Vitamin A, Vitamin E Vitamin B1/B6 Vitamin B2 + 3 more
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DAkkS D-ML-19730-02-00 Dresden, DE
angeborener Chromosomensatz Nummerische Veränderungen Chromosomen 13, 18, 21, X und ldentifizierung kleinster chromosomaler/numerischer + 3 more
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DAkkS D-ML-19730-01-00 Dresden, DE
Multiplate-Analyse (TRAP, ADP) Thrombozytenaggregation Born) Organische Säuren (Profil) Metanephrin, Normetanephrin + 3 more
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DAkkS D-ML-19730-06-00 Dresden, DE
Blutbild, Differentialblutbild Differentialblutbild Fragmentozyten Knochenmarkzytologie Liquor- und Ergusszytologie + 3 more
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DAkkS D-ML-13362-05-00 Düsseldorf, DE
Familiärer Brust- und Eierstockkrebs (TruRiskGenePanel des Deutschen Konsortiums Familiärer Brust- und Eierstockkrebs) (ATM, BARD1, BRCA1, BRCA2, BRIP1, CDH1, + 1 more
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DAkkS D-ML-13362-04-00 Düsseldorf, DE
Cyclosporin Everolimus Sirolimus Cyclosporin A, Everolimus, Sirolimus, Ta Vitamin A + 3 more
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DAkkS D-ML-13362-01-01 Düsseldorf, DE
Pilze (Dermatophyten, Schimmelpilze, Spr Mykobakterien anaerobe Bakterien, anspruchsvolle Schnellwachsende aerobe Cefinase-positive Bakterien + 3 more
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DAkkS D-ML-13297-07-01 Erlangen, DE
Azoospermie (AZFa,b, c Deletionen) Huntington (HTT) Fra(X)-Syndrom, FXTAS (FMR1) Familiärer Brust- und Eierstockkrebs (ATM (NM_000051), BRCA1 + 3 more
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DAkkS D-ML-13297-06-00 Erlangen, DE
Thrombozytenaggregation ASPI, COL, RISTO, TRAP) Steroide Profil 11-Deoxycortisol 11-Deoxycorticosteron + 3 more
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DAkkS D-ML-13297-08-00 Erlangen, DE
Interleukin 23 Rezeptor HLA-B27 HLA-A-Locus HLA-B-Locus HLA-C-Locus + 3 more
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DAkkS D-ML-13297-02-00 Erlangen, DE
Amitriptylin Bromazepam Chlordiazepoxid Clobazam Clomipramin + 3 more
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DAkkS D-ML-13297-03-00 Erlangen, DE
Aspergillus fumigatus AK Brucella spp.- Ak Candida spp. - Ak Cardiolipin AK Cryptococcus neoformans + 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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