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Academic Session 4-A : International Conference Presentation(Ⅲ) 국제학술발표(Ⅲ)

Before and After Study for Traffic Accident Rate on the Widening Section of Expressway

첫 페이지 보기
  • 발행기관
    한국ITS학회 바로가기
  • 간행물
    한국ITS학회 학술대회 바로가기
  • 통권
    한국ITS학회 2022년도 국제학술대회 (2022.06)바로가기
  • 페이지
    pp.1124-1127
  • 저자
    Junghoon Kim, Shin Hyoung Park
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A413436

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원문정보

초록

영어
This study has implemented before and after analysis for traffic accident rate on the 38 IC sections of 9 expressways during three years before construction, construction periods, and three years after construction respectively. The number of accident and fatalities had slightly increased during construction period compared to before construction and then had decreased after the construction was completed. In the case of the number of injured, it had continuously decreased through three periods. Especially, it had sharply dropped after the construction was completed. According to the paired t-test, the average of accident between the construction period and the period after construction is different. The average of fatalities is different between before and after the construction, and also during and after the construction. The average of injured is totally different at every three periods. The number of accident, injured, and fatalities had largely decreased by 41, 32, and 62 percent respectively when is compared to before and after expressway widening project. It could support the hypothesis that the widening project could result in lower accident rate while increasing road capacity. This study has a value as a comprehensive before and after study for traffic accident rate on the widening project section of expressway, which is hard to find out similar studies in the past due to data limitation. The result of this study could use as a basic unit (per unit) of traffic accident rate when the preliminary feasibility study is implemented for the widening project. The current method of estimating traffic accident cost savings has a significant limitation in reflection of impact on safety improvement because it is calculated based on vehicle-km. Therefore, traffic congestion level needs to be considered in the process of preliminary feasibility study for the highway project.

키워드

traffic accident rate widening project Expressway paired t-test;traffcic congestion before and after study;

저자

  • Junghoon Kim [ Department of Future Strategy Korea Expressway Corporation / Department of Transportation Engineering University of Seoul ]
  • Shin Hyoung Park [ Department of Transportation Engineering University of Seoul ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    한국ITS학회 [The Korean Society of Intelligent Transport Systems]
  • 설립연도
    2002
  • 분야
    공학>교통공학
  • 소개
    ◈ 전문분야간 공동협의, 공동연구를 통한 ITS의 학술적 발전 ◈ 산·학·연 협동체계 구축으로 기술개발 지원 ◈ 정부정책 및 제도 방향에 대한 기술적 자문 ◈ 외국 ITS 관련 학술단체와 기술교류 ◈ 관련전문가 및 기술자의 교육 및 양성

간행물

  • 간행물명
    한국ITS학회 학술대회
  • 간기
    반년간
  • 수록기간
    2002~2026
  • 십진분류
    KDC 326 DDC 338

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