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

Showing 26–50 of 249 labs

ALSTOM CRESPIN SAS - Laboratoire d'essai

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COFRAC 1-1630 Crespin, FR
Railway driver warning systems — braking Railway vehicle dynamics — on-track test DIN EN 50500 ISO 7731
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ALSTOM Transport VPF

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COFRAC 1-5603 Petite-Foret, FR
Railway braking — urban guided transport Railway braking — urban guided transport Railway high-speed braking performance ( Railway brake friction material characte Railway braking — wheel slide protection + 3 more
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AMIANT'AIR

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COFRAC 1-6507 Vandoeuvre Les Nancy, FR
DIN EN ISO 11689 NF X 43-257 NF X 43-298 NF X 43-050 NF X 43-269 + 3 more
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AMIANTE PRELEVEMENT ENVIRONNEMENT

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COFRAC 1-7345 Montelimar, FR
NF X 43-050 NF X 43-269 ISO 16000-7 FD X 46-033
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AN DIAG

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COFRAC 1-7298 Saint Etienne Du Rouvray, FR
ISO 22262-1 NF X 43-050 NF X 43-269 NF X 43-269 - Annexe K NF X43-050 (parties utiles de + 2 more
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ANA AIR LAB

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COFRAC 1-6880 Nimes, FR
NF X 43-050 NF X 43-269 ISO 16000-7 FD X 46-033
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ANECO

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COFRAC 1-1863 Genas, FR
DIN EN 13126-19 DIN EN ISO 16911-1 DIN EN 13284-1 DIN EN 14790 DIN EN 14792 + 3 more
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APAVE EXPLOITATION FRANCE

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COFRAC 1-7202 Courbevoie, FR
Occupational noise exposure measurement ISO DIN EN 27888 DIN EN 13126-19 DIN EN ISO 10523 + 3 more
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APB DIAG

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COFRAC 1-7037 Le Blanc Mesnil, FR
NF X 43-050 NF X 43-269 ISO 16000-7 FD X 46-033
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AQUABIO

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COFRAC 1-7428 Saint Germain Du Puch, FR
DIN EN 27888 DIN EN ISO 10523 DIN ISO 17289 DIN EN ISO 5667-15 ISO 10523 + 3 more
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AQUALEHA Site de Vitré (La Massonais)

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COFRAC 1-6971 Vitre, FR
NF EN ISO 11136 ISO 13299 NF V 09-500
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AQUALEHA site de Rennes

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COFRAC 1-1641 Rennes, FR
NF EN ISO 11136 NF V 09-500
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AQUASCOP - Laboratoire Angers

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COFRAC 1-7363 Beaucouzé, FR
NF T 90-333 NF T 90-388 NF T 90-354 NF T 90-395 NF T 90-328 + 3 more
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ARO-Laboratoire

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COFRAC 1-6300 Pleurtuit, FR
NF X 43-050 NF X 43-269 ISO 16000-7 FD X 46-033
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ASNR/PSN-RES/SCA

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COFRAC 1-7444 Gif-Sur-Yvette, FR
DIN EN 61073-1 NF EN 60761-1 : V2005 NF EN 60761-3 IEC 60761-3 NF EN 60761-2 + 3 more
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ATHOS SOLUTIONS NORD PAS DE CALAIS

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COFRAC 1-6062 Capinghem, FR
NF X 43-050 NF X 43-269 ISO 16000-7 FD X 46-033
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ATLANTIC LAB

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COFRAC 1-6298 La Roche-Sur-Yon, FR
NF X 43-050 NF X 43-269 ISO 16000-7 FD X 46-033
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AUBERT & DUVAL - Les Ancizes

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COFRAC 1-6997 Les Ancizes-Comps, FR
Tensile testing of metallic materials (I Charpy impact test (ISO 148-1) DIN EN ISO 6506-1 DIN EN ISO 6507-1 DIN EN ISO 643 + 3 more
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BDR THERMEA FRANCE

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COFRAC 1-6582 Mertzwiller, FR
Sound intensity — scanning method (ISO 9 Sound intensity — scanning method part 2 DIN EN 14511-2 DIN EN 14511-3 DIN EN 14511-4 + 3 more
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BIOXAL

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COFRAC 1-7423 Chalon-Sur-Saône, FR
DIN EN 13697 DIN EN 1650 DIN EN 13727 DIN EN 13624 DIN EN 17387 + 3 more
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BJL ENVIRONNEMENT

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COFRAC 1-6232 Nantes, FR
NF X 43-050 NF X 43-269 NF X 43-269 - Annexe K NF X43-050 (parties utiles de ISO 16000-7 + 1 more
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BJL Laboratoires

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COFRAC 1-0973 Sevres, FR
DIN EN ISO 11885 DIN EN ISO 10304-1 DIN EN 1484 DIN EN 15934 DIN ISO 18287 + 3 more
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BUREAU DE CONTROLE OMEGA

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COFRAC 1-7360 Puymoyen, FR
NF X 43-050 NF X 43-269 ISO 16000-7 FD X 46-033
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BUREAU VERITAS EXPLOITATION

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COFRAC 1-7368 Courbevoie, FR
Occupational noise exposure measurement Hand-arm vibration — measurement (ISO 53 Hand-arm vibration — practical guidance DIN EN 27888 DIN EN ISO 10523 + 3 more
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BUREAU VERITAS LABORATOIRES Cergy

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COFRAC 1-0036 Cergy, FR
Tensile testing of metallic materials (I Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO DIN EN ISO 4136 DIN EN ISO 5173 + 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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