UIC 644

Railway Coach Bogie Behavior Assessment

This standard specifies the behavior and performance requirements for Y25 bogie type coaching stock bogies, focusing on derailment resistance, curving performance, and stability characteristics. It provides test methods and acceptance criteria for evaluating bogie performance through simulation, calculation, and track testing to ensure safe operation across varying track geometries and speeds. Compliance verification is mandatory for coach manufacturers, bogie suppliers, and infrastructure operators to maintain interoperability and prevent accidents. Accredited testing ensures comprehensive evaluation against standardized criteria, reducing operational risks and supporting evidence-based vehicle certification.

What it measures

  • Derailment coefficient and safety margin against derailment
  • Lateral and vertical wheel loads on curves
  • Curve-climbing behavior and stability
  • Dynamic response to track irregularities and switches
  • Forces on bogie frame and guidance components
🇩🇪 DIN EN 14363 🇬🇧 BS EN 14363 🇫🇷 NF EN 14363 🇮🇹 UNI EN 14363 🇪🇸 UNE EN 14363 🇳🇱 NEN EN 14363
1,399 Accredited labs
17 Countries

Showing 51–59 of 59 labs

COFRAC 1-6746 Saint-Herblain, FR
ISO 18787 AM09 based on BS ISO 21527-1: DIN EN ISO 11290-1 NF V04-408 0.95) based on BS ISO 21527-2:2008 + 2 more
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COFRAC 1-0889 Fontaine, FR
DIN EN ISO 21528-1 NF V08-401 DIN EN ISO 21528-2 DIN EN ISO 6888-1 DIN EN ISO 6888-2 + 3 more
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COFRAC 1-7288 La Fleche, FR
DIN EN ISO 21528-1 DIN EN ISO 21528-2 DIN EN ISO 6888-1 DIN EN ISO 6888-2 DIN ISO 16649-2 + 3 more
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COFRAC 1-0824 Lisses, FR
DIN EN ISO 1833-13 DIN EN ISO 1833-14 DIN EN ISO 1833-16 DIN EN ISO 1833-17 DIN EN ISO 1833-18 + 3 more
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COFRAC 1-6879 Vitry Sur Seine, FR
ISO 13737 NF ISO 22286 ASTM D 2137 NF F19-503 NF T60-190 + 3 more
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COFRAC 1-0062 Les Ulis, FR
DIN EN ISO 10545-3 DIN EN 997 DIN EN ISO 10545-4 DIN EN ISO 10545-14 DIN EN ISO 10545-6 + 3 more
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COFRAC 1-6120 Lempdes, FR
NF T 90-412 NF U47-101 DIN EN ISO 7899-1 DIN ISO 16649-2 DIN EN ISO 6888-2 + 3 more
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COFRAC 1-2004 Colmar, FR
DIN EN 12082
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TOXILABO

Active
COFRAC 1-1941 Nantes, FR
NF ISO 21438-3 NF X 43-264 NF ISO 21438-1 ISO 16200-2 NF ISO 21438-2 + 3 more
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Industries

Coach and passenger vehicle manufacturers Bogie and suspension system suppliers Railway operators and depot maintenance Track infrastructure and maintenance organizations Vehicle type approval and certification bodies

Related Standards

  • UIC 518 Railway applications — Tests for the acceptance of running characteristics of railway vehicles
  • EN 14363 Railway applications — Running gear — Testing and validation of running behaviour and safety
  • UIC 505-1 Railway vehicles — gauge limits — Part 1: Rolling stock

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