Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Trend in glass bead and regulation of road marking, and suggestions for preparing an autonomous vehicle age

도로표시 규정 및 글라스비드 동향과 자율주행차량 시대를 대비한 제언

  • Kang, Byeongguk (Department of Advanced Material Engineering, Kyonggi University) ;
  • Kang, Seunggu (Department of Advanced Material Engineering, Kyonggi University)
  • 강병국 (경기대학교 신소재공학과) ;
  • 강승구 (경기대학교 신소재공학과)
  • Received : 2019.08.14
  • Accepted : 2019.10.14
  • Published : 2019.10.31
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Abstract

For maintaining high visibility of lane, the high refractive index glass beads with excellent retro-reflectivity are usually applied on the road marking paint. The retro-reflectivity standard of general road marking is different in each country; it is defined as $240mcd/m^2{\cdot}lux$ based on white light in Korea and $250{\sim}300mcd/m^2{\cdot}lux$ in developed countries. In this paper, the recent trends on the manufacturing technology of glass beads suitable for autonomous driving age as well as the road marking regulations has been reviewed. Also, in preparation for the commercialization of autonomous vehicles in the future, the necessity of raising the standard value and improving the glass bead properties were proposed.

야간이나 악천후에서도 높은 도로의 차선인식률을 유지하기 위해, 통상 재귀반사(retro-reflectivity) 특성이 뛰어난 고 굴절률의 글라스비드(glass bead)를 도로표시 페인트 위에 도포한다. 국가별로 일반 도로표시의 재귀반사 기준이 다르며, 국내는 백색광 기준으로 $240mcd/m^2{\cdot}lux$, 선진국들은 $250{\sim}300mcd/m^2{\cdot}lux$로 규정되어있다. 본 논문에서는 도로표시 관련 규정과 글라스비드에 대한 동향에 대하여 고찰하고, 향후 자율주행차량 상용화에 대비하여 규정 기준치 및 글라스비드물성 향상 필요성에 대하여 논의하였다.

Keywords

References

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