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Optimum Capacity of Freeways: A Stochastic Approach
| 题名： | Optimum Capacity of Freeways: A Stochastic Approach |
| 其他题名： | Bernard,M.,andW.Axhausen.2008."A highway design concept based on probabilistic operational reliability."In Proc.,11th World Conf.of Transport Research Society.Berkeley,CA:WCTRS. |
| 正文语种： | 英文 |
| 作者： | Soheil Sohrabi |
| 关键词： | breakdown；optimum；reliability；through；apac；explores；design；forman；perform；section |
| 摘要： | This study explores a practical value for highway capacity that is able to represent stochastic capacity and optimize the performance of designed facilities. Optimal performance of roadways could be defined in terms of cost, safety, reliability, and vehicle throughput.We optimize the performance of freeway facilities using the traffic efficiency concept and maximizing vehicle throughput. Traffic efficiency, which is a combination of flow rate breakdown probability and capacity drop, is determined for one of the major freeways in Tehran, Iran. We depict flow-efficiency diagrams for freeway sections to extract the optimum capacity. Comparing the proposed optimum capacity and conventional capacity, we suggest the design value of capacity as 90％ of conventional capacity values. The proposed optimum capacity in this study insures the maximum vehicle throughput in designed facilities. |
| 出版年： | 2018 |
| 论文唯一标识： | P-72Y2018V144N07009 |
| 英文栏目名称： | TECHNICAL PAPERS |
| doi： | 10.1061/JTEPBS.0000156 |
| 期刊名称： | Journal of Transportation Engineering |
| 拼音刊名(出版物代码)： | P-72 |
| 卷： | 144 |
| 期： | 07 |
| 页码： | 70-76 |
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