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Shockwave-based queue estimation approach for undersaturated and oversaturated signalized intersections using multi-source detection data
| 题名： | Shockwave-based queue estimation approach for undersaturated and oversaturated signalized intersections using multi-source detection data |
| 其他题名： | Akcelik,R.(1999).A Queue Model for HCM 2000.Vermont South,Australia:ARRB Transportation Research Ltd. |
| 正文语种： | 英文 |
| 作者： | Zhongyu Wang |
| 关键词： | multi-source detection data;queue length;traffic shockwave theory;traffic signals |
| 摘要： | With the progress of information and sensing technologies, estimating vehicular queue length at signalized intersections becomes feasible and has attracted considerable attention. The existing studies provided a solid theoretical foundation for the estimation; however, the studies have some restrictions or limitations more or less. This paper presents a new methodology for estimating vehicular queue length at signalized intersections using multi-source detection data under both undersaturated and oversaturated conditions. The methodology applies the shockwave theory to model queue dynamics. Using data from probe vehicles and point detectors, analytical formulations for calculating the maximum and minimum (residual) queue lengths of each cycle are developed. Ground truth data were collected from numerical experiments conducted at two intersections in Shanghai, China, to verify the proposed methodology. It is found that themethodology hasmean absolute percentage errors of 17.09％ and 12.28％, respectively, for maximum queue length estimation in two tests, which are reasonably effective. However, the methodology is unsatisfactory in estimating the residual queue length. Other limitations of the proposed models and algorithms are also discussed in the paper. |
| 出版年： | 2017 |
| 论文唯一标识： | J-96Y2017V21N03001 |
| 英文栏目名称： | Articles |
| 期刊名称： | Journal of Intelligent Transportation Systems Technology Planning and Operations |
| 拼音刊名(出版物代码)： | J-96 |
| 卷： | 21 |
| 期： | 03 |
| 页码： | 167-178 |
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