[1] Chen Yongheng, Liu Fanghong, Bai Qiaowen, Tao Chuqing, et al. Analysis of conflict factors between pedestriansand right-turning vehicles at signalized intersections [J]. Journal of Southeast University (English Edition), 2019, 35 (1): 118-124. [doi:10.3969/j.issn.1003-7985.2019.01.017]
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Analysis of conflict factors between pedestriansand right-turning vehicles at signalized intersections(
)
信号交叉口行人和右转机动车冲突影响因素分析
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 35
- Issue:
- 2019 1
- Page:
- 118-124
- Research Field:
- Traffic and Transportation Engineering
- Publishing date:
- 2019-03-30
Info
- Title:
- Analysis of conflict factors between pedestriansand right-turning vehicles at signalized intersections
- 信号交叉口行人和右转机动车冲突影响因素分析
- Author(s):
- Chen Yongheng; Liu Fanghong; Bai Qiaowen; Tao Chuqing; Qi Xingzu
- College of Transportation, Jilin University, Changchun 130022, China
- Keywords:
- safety; conflicts; pedestrian behaviors; right-turning vehicles; relative risk
- PACS:
- U491
- DOI:
- 10.3969/j.issn.1003-7985.2019.01.017
- Abstract:
- Due to the fact that there is no protected signal phase for right turns at most signalized intersections, the conflict between pedestrians and right-turning vehicles is one of the most common conflict types for pedestrians. A pedestrian safety analysis of the common right-turn mode at four-phase signalized intersections is presented. Relative risk is used as a measure of the effect of behaviors. The analysis mainly includes five pedestrian factors that affect the conflict process between pedestrians and right-turning vehicles. Pedestrians tend to have a higher risk of being involved in conflicts in the following six situations: crossing with others, running over the crossing, entering the intersection, being near the exit lane, crossing in the middle or at the end of a green light when the right-turn lane is shared, crossing at the beginning of a green light or red period when the right-turn lane is exclusive. It is easier for pedestrians to get priority when crossing the street in the following situations: running over a crossing, entering the intersection, being near the entrance lane, and not using the crosswalk. However, pedestrians are more inclined to yield to right-turning vehicles when pedestrians are crossing in the middle of the green light time. Some measures to alleviate the conflict are put forward according to the conclusion. Video observations also indicate that a clear pedestrian waiting area must be marked for both pedestrian safety and right-turning vehicle efficiency at major flat intersections, particularly when the arms cover the lateral dividing strips.
- 由于大多数信号交叉口没有右转保护相位, 行人和右转机动车冲突现象较为普遍.针对四相位一般右转信号交叉口进行行人安全性分析, 应用相对危险度指标, 分析了5种行人特征因素对行人-右转机动车冲突过程的影响.研究表明, 行人在以下情形下更容易冲突:结伴通过、跑步通过、进入交叉口方向、接近出口道、共享型右转进口道且在行人绿灯中期或末期过街、专用右转进口道且在行人在绿灯初期或红灯期间过街.行人在以下情形过街时优先权更容易得到保证:跑步通过、进入交叉口、接近进口道、不使用人行横道.然而, 行人在绿灯中期过街时其优先权不容易得到保证.并根据研究结论, 提出了缓解冲突的措施.实际调查还发现, 在平面信号交叉口进行行人等待区的明确渠化至关重要, 特别是在相交道路有侧向分隔带的情形下.
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Memo
- Memo:
-
Biography: Chen Yongheng(1978—), male, doctor, associate professor, cyh@jlu.edu.cn.
Foundation item: The National Natural Science Foundation of China(No.51278220).
Citation: Chen Yongheng, Liu Fanghong, Bai Qiaowen, et al. Analysis of conflict factors between pedestrians and right-turning vehicles at signalized intersections[J].Journal of Southeast University(English Edition), 2019, 35(1):118-124.DOI:10.3969/j.issn.1003-7985.2019.01.017.