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Nonstrict Priority Left-Turning Maneuvers with a Permitted Phase at Signalized Intersections: Empirical Study in China
| 题名： | Nonstrict Priority Left-Turning Maneuvers with a Permitted Phase at Signalized Intersections: Empirical Study in China |
| 其他题名： | Adams,W.F.(1950)."Road traffic considered as a random series."Inst.Civ.Eng.J.,1(1),9. |
| 正文语种： | 英文 |
| 作者： | Qiao-Wen Bai |
| 关键词： | Nonstrict priority;Left-turning maneuver;Permitted phase;Trajectory density;Left-turn group;Cluster analysis;Following time interval |
| 摘要： | The study investigated the analysis of nonstrict priority left-turning vehicle maneuvers with a permitted phase at signalized intersections, based on field observation at four sites (one with a permitted phase and the others with protected phases) in Changchun, China. Trajectory densities at four cross sections along the turning paths were collected, and the concept of a left-turn group was proposed for discussing the maneuver. Then, analysis was conducted by means of clustering and probability distribution fitting. The results revealed that (1) a significantly wider trajectory distribution appears in permitted left-turning maneuvers than in protected phases; (2) four different maneuvers exist for the leading vehicle of a left-turn group; and (3) following time intervals in a left-turn group have a leptokurtic distribution that can be best fitted by the log-logistic and lognormal models. This study provides a better understanding of the nonstrict priority left-turning maneuver with a permitted phase with respect to operational performance, and offers the basis for further study on permitted left-turning streams, such as their capacity and delay. |
| 出版年： | 2017 |
| 论文唯一标识： | P-72Y2017V143N03002 |
| 英文栏目名称： | TECHNICAL PAPERS |
| doi： | 10.1061/JTEPBS.0000015 |
| 期刊名称： | Journal of Transportation Engineering |
| 拼音刊名(出版物代码)： | P-72 |
| 卷： | 143 |
| 期： | 03 |
| 页码： | 1-8 |
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