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Study on the Appropriate Time for Leading Pedestrian Intervals

보행자 우선 출발신호의 적정 시간 산출 연구

  • Kim, Daekyung (Big Date Convergence Dept., Road Traffic Authority) ;
  • Yoon, Suyoung (Traffic Science Equipment Dept., Road Traffic Authority) ;
  • Yoon, Jinsoo (Infra Research Division, Road Traffic Authority) ;
  • Kim, Sang-Ock (Samsung Traffic Safety Research Institute) ;
  • Yun, Ilsoo (Dept. of Transportation Eng., Ajou University)
  • 김대경 (도로교통공단 빅데이터융합처) ;
  • 윤수영 (도로교통공단 교통과학장비처) ;
  • 윤진수 (도로교통공단 인프라연구처) ;
  • 김상옥 (삼성교통안전연구소) ;
  • 윤일수 (아주대학교 교통시스템공학과)
  • Received : 2020.03.16
  • Accepted : 2020.05.19
  • Published : 2020.06.30

Abstract

When pedestrians cross a pedestrian crossing during a pedestrian signal, there is a problem that pedestrians are exposed to the danger of traffic accidents due to permissive-left turning and right-turning vehicles. In order to solve this problem, there is an increasing demand to improve the traffic signal system to increase pedestrian safety at the signal crossing. This study aims to examine the feasibility of introducing a leading pedestrian interval(LPI) to prevent conflict between unprotected left and right turn vehicles and pedestrians. In this study, the need for LPI was surveyed by experts and the general public. As a result of the survey, many opinions indicated that the introduction of LPI was necessary. In addition, after selecting the non-protected left and right turn pilot operation targets, LPI was installed on two signal intersections. After installation, the speed analysis of the arrival vehicle in the pedestrian crossing and the violation rate of the pedestrian signal were analyzed. As a result of analysis, when the walking signal was equalized, the speed of the arriving vehicle in the pedestrian crossing was reduced, and the violation rate of the walking signal was improved.

비보호좌회전 및 우회전 차량으로 인해 보행신호 시 보행자가 교통사고 위험에 노출되어 있는 신호교차로에서 보행자의 안전이 담보될 수 있는 교통신호체계에 대한 요구가 증가하고 있다. 이에 본 연구는 비보호좌회전 및 우회전 차량과 보행자 상충 예방을 위한 보행자 우선 출발신호(leading pedestrian interval, LPI) 교통신호체계의 국내 도입에 따른 적정 운영방안을 수립하고자 한다. 이를 위해 객관적이고 현실성 있는 연구 수행을 위해 전문가와 일반인을 대상으로 보행자 우선 출발신호 도입이 필요에 대한 설문조사를 실시하였다. 국내 여건에 맞는 보행자 우선 출발신호 도입을 위한 현장 적용 조건을 수립하고 비보호좌회전 및 우회전 시범운영 대상지를 선정하여 산출된 보행자 우선 출발신호의 적정시간을 대상교차로에 적용하였다. 횡단보도 내 도착차량 속도 분석과 보행신호 위반율을 분석한 결과 보행신호 등화 시 횡단보도 내 도착차량 속도가 감소되었고, 보행신호 위반율이 개선되어 보행자가 보다 안전한 환경에서 보행하는 것이 현장에서도 확인되었다.

Keywords

References

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