International Journal of Highway Engineering (한국도로학회논문집)

Korean Society of Road Engineers (한국도로학회)
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Study of the Influence of Condensation on Road Signs to Drivers

결로 발생 도로표지가 운전자에게 미치는 영향에 관한 연구

  • 박재홍 (한국건설기술연구원 도로교통연구실) ;
  • 윤덕근 (한국건설기술연구원 도로교통연구실) ;
  • 성정곤 (한국건설기술연구원 도로교통연구실) ;
  • 강원의 (한국건설기술연구원 도로교통연구실)
  • Received : 2013.07.16
  • Accepted : 2013.08.29
  • Published : 2013.10.15
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Abstract

PURPOSES : This research is to analyze the influence in terms of misreading rate and legibility time for drivers when condensation occurs on the road signs. METHODS : In this research, the dew occurred road signs provided to drivers to measure legibility time and misreading rate to compare with normal road sign. In order to identify the difference of legibility time between normal road sign and dew occurred road sign, the T-test and ANOVA test were used. And the vision system was used to recognize the region of dew occurrence on the road sign, then the brightness of dew occurrence region on the road sign was changed to check the misreading rate of drivers according to the change rate of brightness. RESULTS : The legibility times were measured 2.65s for normal road sign and 4.08s for dew occurrence road sign and misreading rates were measured 2.8% for normal road sign, 21.7% for dew occurrence road sign.

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References

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