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자유류 상태에서 고속도로 구간과속단속구간 및 대조구간 간의 교통류 특성 비교

Comparison of Section Speed Enforcement Zone and Comparison Zone on Traffic Flow Characteristics under Free-flow Conditions in Expressways

  • 심지섭 (한국과학기술원 조천식녹색교통대학원) ;
  • 장기태 (한국과학기술원 조천식녹색교통대학원) ;
  • 정성봉 (서울과학기술대학교 철도전문대학원) ;
  • 박신형 (계명대학교 교통공학과)
  • Shim, Jisup (The Cho Chun Shik Graduate School for Green Transportation, KAIST) ;
  • Jang, Kitae (The Cho Chun Shik Graduate School for Green Transportation, KAIST) ;
  • Chung, Sung Bong (Graduate School of Railroad, Seoul National University of Science and Technology) ;
  • Park, Shin Hyoung (Department of Transportation Engineering, Keimyung University)
  • 투고 : 2014.11.28
  • 심사 : 2015.02.27
  • 발행 : 2015.04.30

초록

무인과속단속시스템은 속도위반 차량을 효과적으로 단속하기 위해 도입되었으나, 기존의 지점 과속단속시스템의 경우 차량 내비게이션, 스마트폰 등을 통해 제공되는 위치정보 서비스로 인해 단속 효과가 현격히 낮아지게 되었다. 구간 과속단속시스템은 지점 과속단속카메라 설치 지점에서 나타나는 카메라 전후에서 급감속 및 재가속을 반복하는 회피 거동으로 인한 여러 가지 부정적인 문제점을 보완하기 위해 도입되어 설치를 확대해 나가고 있다. 이에 본 연구에서는, 국내 고속도로 상에 설치된 구간 과속단속시스템에서 나타나는 교통류 특성에 대해 대조 구간을 설정하여 비교 분석하였다. 이를 위해 구간의 특성 등을 고려하여, 중부내륙선, 대전-통영선, 영동선 내의 구간 과속단속 시행구간에 대해 VDS 검지기 데이터를 수집하였으며, 데이터필터링을 통해 비교분석에 용이한 조건을 설정하고 자유속도 상태에서의 교통류 특성을 분석하였다. 분석결과, 구간 과속단속구간 내에서는 대조 구간에 비해 속도 평균 및 속도 분산이 낮아지는 경향을 보였으며, 통계적 검정 방법을 이용하여 이를 확인하였다.

The Korean government introduced an automated speed enforcement system (ASES), which uses traffic enforcement cameras, to counteract safety issues that are caused by speeding. As the information of the traffic enforcement camera locations is provided to the drivers via navigation systems and mobile applications in a timely manner, drivers can avoid enforcement by momentarily diminishing their speeds only near the camera locations. To prevent drivers' evasional behavior and improve the effectiveness of ASES, section control, which enforces speeding vehicles by measuring their average travel speeds over a stretch of road and checking against the speed limit, has been recently implemented. In this study, Section Speed Enforcement Zone and Comparison Zone are compared in terms of traffic stream characteristics under free flow conditions. To this end, loop detector data were obtained from the three study sites and analyzed. The study results demonstrated that drivers maintain their speeds below the speed limit over the enforcement section with a lower variance of speeds.

키워드

참고문헌

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