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Identifying Bottlenecks in Roadway Networks in Hurricane Evacuation
| 题名： | Identifying Bottlenecks in Roadway Networks in Hurricane Evacuation |
| 其他题名： | Ballard,A.(2007)."Traffic operations for hurricane evacuation."Transp.Res.Rec.,2035,195-204. |
| 正文语种： | 英文 |
| 作者： | Weike Lu |
| 关键词： | Bottleneck identification;Travel time;Network;Traffic flow;Congestion;Hurricane evacuation |
| 摘要： | The existence of traffic bottlenecks limits the network capacity and leads to massive recurring and nonrecurring congestions during daily traffic peaks and in the critical event of an emergency evacuation. It is important to identify possible network bottlenecks to improve evacuation efficiency. Based on Newell's simplified kinematic wave model, this paper presents a methodology to identify the network bottleneck links under hurricane evacuation. The methodology mainly includes three parts: (1) achieve traffic flow state updating and propagation based on the kinematic wave model; (2) estimate the evacuation demand using a hurricane evacuation response curve; and (3) identify the bottleneck links according to the mean and variance of the measurement of the degree of congestion. Hence, the proposed methodology is elaborated with a sample network, and the travel time distribution of identified bottleneck is analyzed. Furthermore, the method is applied to the bottleneck identification of a realistic network and results are obtained based on simulations using the methodology. |
| 出版年： | 2018 |
| 论文唯一标识： | P-72Y2018V144N09007 |
| 英文栏目名称： | TECHNICAL PAPERS |
| doi： | 10.1061/JTEPBS.0000143 |
| 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： | 43-56 |
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