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Effectiveness of Road Lighting on Driver' Vision

도로조명 방식이 운전자 시지각에 미치는 영향

  • 정준화 (한국건설기술연구원 도로연구실) ;
  • 이석기 (한국건설기술연구원 도로연구실) ;
  • 김원식 (벽산엔지니어링(주) 도로사업부) ;
  • 이미애 ((주)아이라이트)
  • Received : 2012.01.17
  • Accepted : 2012.07.03
  • Published : 2012.08.15

Abstract

PURPOSES : Road lighting facilities increase the visibility of road at night in order to improve traffic driver safety and comfort. Generally speaking, current pole lighting has a tendency to create problems of glare and flicker. The phenomenon of glare gives discomfort due to increase of scattered light, when high luminance is in driver's field of view. The phenomenon of flicker occurs due to the driver passing through discontinuous pockets of pole lighting areas. These phenomenon increase eye strain and decrease driver safety. METHODS : Low height line lighting that distributes light lower than driver's eye level has been developed and evaluated to reduce the problems linked to current pole lighting. A test was undertaken with 4 conditions(turn on the general pole lighting, turn off alternate pole lighting, turn on the line lighting and line lighting with 50% dimming). A driver written survey was conducted in order to gain driver feedback. RESULTS : Pupil size and brow frequency compared with degree in pole lighting are reduced. CONCLUSIONS : Low height line lighting environment makes drivers more comfortable than pole lighting environment and is positive lighting method in the energy saving and landscape aspect.

Acknowledgement

Grant : 도로시인성향상및 안전운전확보기술 개발, 에너지 절약형 경량 VMS 개발

References

  1. KS A 3701, "Road Lighting Criteria", 2010
  2. Kim Hun et al., "Investigation of Roadway Lighting by Measurement of Illuminance and Luminance Distribution", Journal of the Korea Institute of Illuminating and Electrical Installation Engineers, Vol 22, No.1, pp.17-23 January 2008. https://doi.org/10.5207/JIEIE.2008.22.1.017
  3. KLEDA, "LED JOURNAL", Vol.03, March 2010.
  4. Korea Institute of Construction Technology, "Development of Technology to Improve Road Visibility and Secure Safe Driving Environment(Final Report)", 2011

Cited by

  1. An Analysis of Driver Perception of Nighttime Visibility Using Fuzzy Set Theory vol.17, pp.5, 2015, https://doi.org/10.7855/IJHE.2015.17.5.057