Standardisation issues

Standardisation papers are what guides the work improving traffic safety in relation to retroreflection of pavement markings and road traffic signs. The most used and widely recognized standards are the European EN and the US ASTM standards.

Standards for pavement markings

  • EN 1436. Road marking materials – Road marking performance for road users
  • ASTM E1710. Standard Test Method for Measurement of Retroreflective Pavement Marking Material with CEN-prescribed Geometry using a Portable Retroreflec-tometer
  • ASTM E2177. Standard Test Method for Measuring the Coefficient of Retroreflected Luminance (RL) of Pavement Markings in a Standard Condition of Wetness
  • ASTM E2302-03a. Standard Test Method for Measurement of the Luminance Coefficient Under Diffuse Illumination of Pavement Marking Materials Using a Portable Retroreflectometer
  • ASTM E2832. Standard Test Method for Measuring the Coefficient of Retroreflected luminance of Pavement Markings in a Standard Condition of Continuous Wetting (RL-2)

Other related standards

  • ASTM E2366. Standard Test Method for Measurement of Daytime Chromaticity of Pavement Marking Materials Using a Portable Reflection Colorimeter
  • ASTM E2367. Standard Test Method for Measurement of Nighttime Chromaticity of Pavement Marking Materials Using a Portable Retroreflection Colorimeter

Standards for road traffic signs

  • EN 12899. Fixed, vertical road traffic signs. Most relevant is Part 1: Fixed signs and Part 4: Factory production control
  • ASTM E1709. Standard Test Method for Measurement of Retroreflective Signs Using a Portable Retroreflectometer at a 0.2 Degree Observation Angle
  • ASTM E2540. Standard Test Method for Measurement of Retroreflective Signs Using a Portable Retroreflectometer at a 0.5 Degree Observation Angle

Other related standards

  • DIN 67250. Retroreflecting materials for traffic safety – Photometric minimum requirements for retroreflective sheetings
  • ASTM D 4956. Standard Specifications for Retroreflection Sheeting for Traffic Control
  • ASTM E809. Standard Practice for Measuring Photometric Characteristics of Retroreflectometers
  • ASTM E810. Standard Test Method for Coefficient of Retroreflection of Retroreflective Sheeting Utilizing the Coplanar Geometry

Standards for safety clothing

  • EN 471 / EN 20741. High-visibility warning clothing for professional use – Test methods and requirements / High visibility clothing – Test methods and requirements

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