原文传递
Shockwave-Based Queue Length Estimation Method for Presignals for Bus Priority
| 题名： | Shockwave-Based Queue Length Estimation Method for Presignals for Bus Priority |
| 其他题名： | Ban,X.J.,P.Hao,and Z.Sun.2011."Real time queue length estimation for signalized intersections using travel times from mobile sensors."Transp.Res.C 19(6):1133-1156.https://doi.org/10.1016/j.trc.2011.01.002. |
| 正文语种： | 英文 |
| 作者： | Yunyi Liang |
| 关键词： | shockwave；signal；priority；simulation；present；queue；scenarios；automaton；upstream；different |
| 摘要： | This paper presents a shockwave-based method for estimating queue length associated with presignals for bus priority. Both queue length at presignals and main signals are estimated by the proposed method. In this study, we first analyze traffic operations with the implementation of presignals for bus priority using shockwave theory. On this basis, queue length at presignals and main signals are estimated for eight cases in which a bus arrives at different times during a traffic signal cycle. Detailed comparisons of queue length estimated by shockwave theory and that obtained by a cellular-automaton-based simulation are made from the shape of the fundamental diagram (triangular and concave), areas (upstream of the presignal and between the presignal and the main signal), bus arrival scenarios (bus is not present and bus is present), and bus arrival times (during the red presignal and during the green presignal). Simulation experiments show that the proposed shockwave-based method is effective in estimating queue length associated with presignals for bus priority in all cases. The efforts are made to provide the basis for evaluating the performance of intersections with presignals for bus priority implemented and designing sorting area for presignals for bus priority. |
| 出版年： | 2018 |
| 论文唯一标识： | P-72Y2018V144N09017 |
| 英文栏目名称： | TECHNICAL PAPERS |
| doi： | 10.1061/JTEPBS.0000175 |
| 期刊名称： | Journal of Transportation Engineering |
| 拼音刊名(出版物代码)： | P-72 |
| 卷： | 144 |
| 期： | 09 |
| 页码： | 150-162 |
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