Aspect-Oriented Programming
Aspect-Oriented Programming
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DOI：
10.1007/3-540-46589-8_17
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发表时间：
1999-06
期刊：
影响因子：
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通讯作者：
L. Bergmans;C. Lopes
中科院分区：
文献类型：
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作者：
L. Bergmans;C. Lopes
针对大城市动态交通网络的不确定性问题，本文从连通可靠性的角度出发，分析了连通可靠性的评估方法，提出了基于LOS的连通可靠性评估模型（LOS-CRE模型），将交通服务水平融入可靠性评估中，并参考HCM（公路容量手册）中的服务水平划分等级。同时本文同时考虑了实际交通情况和LOS分级策略。城市交通的具体拥堵状况决定了某一等级（E级）作为界限，某一时刻的LOS是否满足该一定等级决定了道路功能与否，然后利用道路功能情况计算网络中任意两点（起点和终点）的连通可靠性。与现有方法相比，LOS-CRE模型降低了计算复杂度，过程直观可靠，评估结果对交通管理具有重要意义。本文作为实验论证，选取北京地区为例，展示区域动态交通网络连通可靠性的计算。最后，我们得出结论并对未来的研究工作提出自己的看法。
Facing to the uncertainty problem of dynamic transport network for the big cities, this paper begins from the viewpoint of connectivity reliability, analyses evaluation method for connectivity reliability, and put forward LOS-based connectivity reliability evaluation model (LOS-CRE model), that integrates traffic level-of-service into reliability evaluation, and that is reference to grades of level of service classified in HCM (Highway Capacity Manual). Meanwhile this paper considers both the actual traffic situation and LOS grading strategy. The specific congestion condition of urban traffic decides a certain level (grade E) as a limit, whether the LOS at some time meets this certain level or not determines the road functions or not, and then make use of the road function situation to calculate the connectivity reliability for any two points (Origin and Destination) in the network. Compared with existed methods, the LOS-CRE model reduces calculation complexity, which process is intuitive and reliable, and which evaluation result will ring significance for the traffic management. In this paper, as experiment demonstration, we pick up a region of Beijing for an example to exhibit the calculation of connectivity reliability for the regional dynamic transportation network. Lastly, we draw the conclusions and present our opinions on the future research work.