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장대터널의 사례에 기반한 대심도 지하도로 교통시설 및 운영 개선방안

Study on the Ways to Improve Deep Underground Road Facilities and Operation Based on the Cases of Longitudinal Tunnel

  • 최종철 (서울시립대학교 교통공학과) ;
  • 임준범 (서울시립대학교 교통공학과) ;
  • 홍지연 (서울시립대학교 교통공학과) ;
  • 이성열 (삼성교통안전문화연구소)
  • Choi, Jong Chul (Department of Transportation Engineering, University of Seoul) ;
  • Lim, Joon Beom (Department of Transportation Engineering, University of Seoul) ;
  • Hong, Ji yeon (Department of Transportation Engineering, University of Seoul) ;
  • Lee, Sung Yeol (Samsung Traffic Safety Research Institute)
  • 투고 : 2015.09.07
  • 심사 : 2015.12.17
  • 발행 : 2015.12.31

초록

Recently, starting with the deep underground road construction plan in Seobu Expressway, Korea, there area many studies on deep underground roads to be newly built. However, there is an extreme lack of safety standards, which does not consider traffic conditions and road driving characteristics. Therefore, this study reviewed safety elements to reflect in the deep underground road planning by analyzing driving stability of longitudinal tunnels with road environments, which resemble deep underground roads. For comprehensive analysis, the characteristics and causes of the accidents that have occurred in seven longitudinal tunnels with a length of 2km or over in Gangwon area, were collected. Specifically, geometric structures and facilities of each tunnel were investigated. Also, the present state of facility installation and the changes in driving speed of vehicles passing through each tunnel were observed to analyze the causes for the traffic accidents in each tunnel and accident reduction alternatives. It was revealed that the most frequent accidents in the tunnels resulted from the changes of traffic flow due to the abrupt speed reduction of forward vehicles, or the failure in speed control of following vehicles during the traffic congestion situation. Moreover, installing facilities such as plane and longitudinal curves, median strips and marginal strips seem to induce consistent driving speed. These results mean that for accident prevention, speed management must be preceded and there is a need to develop and introduce safety facilities actively to control the driving flow of forward and following vehicles.

키워드

참고문헌

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