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

The Korea Institute of Intelligent Transport Systems (한국ITS학회)
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A Study on the Calculation of Dynamic Yellow Signal Time Based on Approach Speed and Collision Points

접근속도와 상충지점 기반 동적황색신호시간 산정 연구

  • Hyunho Son (Dept. of Traffic Safety & Facility, Korea Road Traffic Authority) ;
  • Sanghoon Sung (Dept. of Korea Expressway Corporation Sejonganseong Construction Office) ;
  • Choulki Lee (Dept of Transportation Eng, Ajou University) ;
  • Hyeon Soo Lee (Dept of Hanatech system)
  • 손현호 (도로교통공단 경기도지부) ;
  • 성상훈 (한국도로공사 세종안성건설사업단 ) ;
  • 이철기 (아주대학교 교통시스템공학과) ;
  • 이현수 ((주)하나텍시스템 )
  • Received : 2023.07.26
  • Accepted : 2023.08.13
  • Published : 2023.08.31
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Abstract

The purpose of this study was to calculate the appropriate yellow-signal time for intersections, to find out the relationship between the approach speed and intersection width when calculating the time, and to secure safety by minimizing conflicts and dilemma sections in intersections that change according to the signal operation. For this purpose, 6,824 data points from 5 intersections were collected and analyzed. The main results of the study are as follows. First, the approach speed of individual vehicles in different lanes was analyzed, and the width of an intersection was defined by considering the conflict in each direction. Second, we developed a multiple regression model based on the approach speed and conflict points, which compensated for the problems of an existing formula. Third, a standard table is presented for applying the appropriate yellow-signal time according to the approach speed and intersection width based on a development formula. A method is also presented to determine the safety of the length of the dilemma according to the change in the yellow-light time by presenting a calculation table that can cross-analyze the yellow-signal time and a dilemma section using the relationship.

본 연구의 목적은 신호교차로의 적정황색신호시간 산정을 위한 것으로, 황색신호시간 산정 시 접근속도와 교차로 폭에 따른 연관성을 알아보고 신호 운영에 따라 변화되는 교차로 내 상충과 딜레마구간을 최소화하여 교차로 운영 안전성을 확보하는 데 있다. 이를 위해 5개 교차로의 6824건의 자료를 수집 분석하였다. 주요 연구결과는 첫째, 차로별 개별차량 접근속도를 분석하고 방향별 상충을 고려해 교차로 폭을 정의하였다. 둘째, 기존 산식의 문제점을 보완한 접근속도와 상충 지점 기반 다중회귀모형식을 개발하였다. 셋째, 개발 산정식을 통해 접근속도와 교차로 폭에 따른 적정황색신호시간 적용 기준표를 제시하였으며, 와의 관계를 이용해 황색신호시간과 딜레마구간을 교차 분석할 수 있는 산정표를 제시하여 황색신호시간 변화에 따른 딜레마 길이의 안전성을 판단하는 방안을 제시하였다.

Keywords

References

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