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Road surfaces

Hong Kong Testing Co., Ltd. provides physical testing of road surface according to
General Specification for Civil Engineering Works (1992 / 2006),
British Standard and
Highway Department Guidance Notes on Road Testing

  • Texture depth (sand patch method)
  • Surface regularity
  • Skid resistance
  • Luminance coefficient under defuse illumination (Qd) and retro-reflected luminance (RL) of road markings
  • Thickness of road markings
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