The Journal of The Korea Institute of Intelligent Transport Systems (한국ITS학회 논문지)

The Korea Institute of Intelligent Transport Systems (한국ITS학회)
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Analysis of Safety and Mobility of Expressway Land Control System

길어깨차로제 시행에 따른 안전성 및 이동성 분석

  • Park, Sung-ho (Dept. of Transportation Eng, Ajou University) ;
  • Lee, Yoseph (Dept. of Transportation Eng, Ajou University) ;
  • Kang, Sungkwan (Construction Div. Korea Expressway Corporation) ;
  • Cho, Hyonbae (Smart-Highway R&D Center, Korea Expressway Corporation) ;
  • Yun, Ilsoo (Dept. of Transportation Eng, Ajou University)
  • 박성호 (아주대학교 교통공학과) ;
  • 이요셉 (아주대학교 교통공학과) ;
  • 강성관 (한국도로공사 건설처 건설계획팀) ;
  • 조현배 (한국도로공사 스마트도로연구단 연구사업팀) ;
  • 윤일수 (아주대학교 교통시스템공학과)
  • Received : 2021.05.26
  • Accepted : 2021.06.23
  • Published : 2021.06.30
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Abstract

The domastic hard shoulder running(HSR) System has been gradually expanding since its initial implementation in September 2007 with the aim of increasing capacity and resolving congestion. Hard Shoulder is used as a space for driver's visual comfort and a place for vehicles to evacuate in case of emergency, but it is replaced by a space for driving when the HSR System is implemented. Therefore, it was intended to determine the improvement effect before and after implementation of the HSR system through safety analysis and mobility analysis. The safety analysis analyzed the impact of traffic accidents by comparing HSR sections and similar sections. The mobility analysis was to determine the improvement effect by quantifying the speed and traffic volume changes before and after HSR System implementation. According to safety yanalysis, there is no effect of reducing traffic accidents when implementing the HSR System. In mobility analysis, the implementation of the HSR System significantly improved the speed of traffic during peak hours and significantly reduces slow and delay hours.

고속도로에서 사용되고 있는 길어깨차로제는 용량 증대, 지·정체 해소를 목적으로 2007년 9월 최초 도입된 이후 시행 구간이 점차 확대되고 있는 상황이다. 고속도로 길어깨는 운전자들의 시각적 편안함, 위급 시 차량의 대피 장소 등으로 이용되는 공간이지만 길어깨차로제의 시행 시 주행을 위한 공간으로 대체된다. 따라서 안전성 분석과 이동성 분석을 통해 길어깨차로 제의 실시 전·후의 개선 효과를 판단하고자 하였다. 안전성 분석은 비교그룹방법을 통해 길어 깨차로제 시행 구간과 유사 구간의 교통사고 건수를 비교 분석하였으며, 추가로 길어깨차로제 시행 기간 발생한 개별 교통사고 분석을 통해 교통사고 양상을 확인하였다. 이동성 분석은 길어깨차로제 시행 전·후의 속도와 교통량 변화를 신뢰성 지표를 통해 수치화하여 개선 효과를 판단하고자 하였다. 안전성 분석 결과, 길어깨차로제의 시행 시 교통사고는 일부 증가하는 것으로 나타났다. 이동성 분석 결과, 길어깨차로제의 시행으로 통행속도는 첨두시간대에 크게 개선되며 서행·지체 시간이 큰 폭으로 감소한 것으로 나타났다.

Keywords

Acknowledgement

본 연구는 한국 도로공사의 'AI를 활용한 길어깨차로제 설치 및 운영기준 연구'의 일환으로 수행하였습니다. 본 논문은 2021년의 한국ITS학회 춘계학술대회에서 발표되었던 논문을 수정·보완하여 작성하였습니다.

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