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Active Strategy to Improve the Right-Turn Capacity at Signalized Intersections
| 题名： | Active Strategy to Improve the Right-Turn Capacity at Signalized Intersections |
| 正文语种： | eng |
| 作者： | Yujing Zheng;Yuxiong Ji;Wei Wang;Xuefen Cai;Yuchuan Du |
| 作者单位： | Key Laboratory of Road and Traffic Engineering of the Ministry of Education Tongji Univ. Shanghai 201804 China;Key Laboratory of Road and Traffic Engineering of the Ministry of Education Tongji Univ. Shanghai 201804 China;Key Laboratory of Road and Traffic Engineering of the Ministry of Education Tongji Univ. Shanghai 201804 China;Key Laboratory of Road and Traffic Engineering of the Ministry of Education Tongji Univ. Shanghai 201804 China;Key Laboratory of Road and Traffic Engineering of the Ministry of Education Tongji Univ. Shanghai 201804 China |
| 关键词： | Signalization; Real-time; Right-turn vehicles; Crossing pedestrians |
| 摘要： | Conflicts between the right-turn vehicles and crossing pedestrians at signalized intersections not only endanger pedestrians, but also impede the ability of vehicles to execute their runs. The strategy proposed in this study recognizes the fact that the pedestrian volume in the late stage of the pedestrian green (PG) time is often low. Thus, it terminates the PG in advance to provide the right-turn vehicles with a pedestrian-free interval, which quickens the turning movements and improves the right-turn capacity. A rule-based algorithm is developed to determine the PG termination time dynamically, which considers the priority needs of vehicles and pedestrians. The proposed strategy is validated numerically at an intersection in Shanghai, China. The results demonstrate that the proposed strategy could efficiently improve the right-turn capacity and reduce vehicle delays with limited impact on pedestrians. Sensitivity analyses suggest that the proposed strategy is applicable at signalized intersections with high right-turn vehicle volume and moderate pedestrian volume. |
| 出版年： | 2021 |
| 期刊名称： | Journal of Transportation Engineering |
| 卷： | 147 |
| 期： | 1 |
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