| 动态交通流分配模型 |
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| 引用本文： | 王秋平,王中芳,赵硕.动态交通流分配模型[J].长安大学学报(自然科学版),2011(2):81-85. |
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| 作者姓名： | 王秋平 王中芳 赵硕 |
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| 作者单位： | 西安建筑科技大学土木工程学院; |
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| 基金项目： | 陕西省自然科学基金项目(2007E232); 陕西省教育厅专项基金项目(08JK334); 西安建筑科技大学学科重点培育计划人才培育专项项目(XK201101) |
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| 摘 要： | 为了构造更先进的动态交通流分配模型,针对城市道路上车流的速度和密度特性,利用Green-shields速度密度关系对元胞传输模型进行了优化改进。改进后的模型能较好地模拟城市道路上交通流的运行特性,且在保证计算精度的同时,降低了算法的计算复杂度。算例结果表明,该模型可以出色地再现路段上时变的交通流,使乘客在任意节点都能获得当时交通条件下到达终点的最短路径,从而实现其交通分析与诱导功能。
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| 关 键 词： | 交通工程 动态交通流分配模型 速度密度特性 元胞传输模型 |
Research on dynamic traffic assignment model |
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| WANG Qiu-ping,WANG Zhong-fang,Zhao-shuo.Research on dynamic traffic assignment model[J].JOurnal of Chang’an University:Natural Science Edition,2011(2):81-85. |
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| Authors: | WANG Qiu-ping WANG Zhong-fang Zhao-shuo |
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| Institution: | WANG Qiu-ping,WANG Zhong-fang,Zhao-shuo (School of Civil Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,Shaanxi,China) |
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| Abstract: | In order to establish a more advanced dynamic traffic assignment model,based on the analysis of existent models,an improved dynamic traffic assignment model was proposed.In accordance with speed and density characteristic of the traffic flow on urban road,the new model uses Green-shields model to optimize the existent cellular transportation model.The improved model can simulate the move characteristic of traffic flow,ensure the calculation accuracy and reduce the computational complexity of the algorithm.T... |
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| Keywords: | traffic engineering dynamic traffic assignment model speed and density characteristic cellular transportation model |
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