논문 상세보기
pp.95-103
PURPOSES : Permitted left turn is a turning maneuver in which a vehicle turns left using a gap between oncoming vehicles, called gap acceptance, and it enables for more efficient traffic operation at intersections. In Korea, the permitted left turn has not been a common maneuver at signalized or un-signalized intersections. However, many experts and the Police Agency tried to apply this effective turning maneuver at intersections in Korea since 2010. Though the investigation of gap acceptance is significantly important in understanding a driver’s behavior at intersections, there have not been many studies about this topic, specifically a study to develop probability models of gap acceptance behavior. METHODS: In this study, the probability model of gap acceptance behavior for a permitted left turn was developed based on observational field studies. To develop the model, seven variables were analyzed including gap, waiting time, traffic volume, conflict-flow vehicle type, leftturning vehicle type, the number of lane, and time.
RESULTS: In the final model, gap and left-turning vehicle type were found to be significant influencing factors.
CONCLUSIONS: Through this model development, it was concluded that as the gap size increased, the probability of gap acceptance was higher. Moreover, when a left-turning vehicle was a passenger car, the probability of gap acceptance was higher than compared to large size buses or freight cars.
1.1. 연구의 배경 및 목적
1.2. 연구의 내용 및 수행과정
2. 기존문헌 검토
2.1. 임계간격 산출방법 관련 기존연구
2.2. 간격수락 행태모형개발관련 기존연구
3. 연구수행방법
3.1. 자료의 수집 및 DB 구축
3.2. 모형개발방법
4. 연구수행결과
4.1. 비보호좌회전의 간격수락 행태 조사결과
4.2. 비보호좌회전에서의 임계간격 산출결과
4.3. 비보호좌회전의 간격수락 행태 모형개발결과
4.4. 비보호좌회전의 간격수락 행태 모형 검증
5. 결론
REFERENCES
