|
|||||
|
|
| 考虑交通诱导下新进出行者的网络交通流演化模型 | |
| 引用本文： | 度巍,肖海燕,黄崇超. 考虑交通诱导下新进出行者的网络交通流演化模型[J]. 武汉大学学报(工学版), 2013, 46(1): 113-116 |
| 作者姓名： | 度巍 肖海燕 黄崇超 |
| 作者单位： | 1. 南通大学交通学院,江苏南通,226019 2. 湖北第二师范学院数学与数量经济学院,湖北武汉,430205 3. 武汉大学数学与统计学院,湖北武汉,430072 |
| 基金项目： | 国家自然科学基金项目(编号:70771079,71171133);上海市优秀青年教师基金项目(编号:jr10007) |
| 摘 要： | 研究了城市网络交通流的动态演化行为.在网络交通流的演化过程中,出行者根据路网状况不断调整自己的出行路径,假设OD对出行需求和路径流量受到OD对出行成本的影响,考虑在交通诱导下新进出行者的路径选择方式,以Logit分配模型表示新进出行者选择出行路径的比例,提出一个改进的交通流演化模型,并分析了该模型及其零点的一些特性,它能更好地反映现实中交通流演化结果.数值实验结果表明,模型可近似描述交通流演化到用户均衡态的过程,交通流能够收敛到均衡状态. |
| 关 键 词： | 网络交通流 演化模型 OD需求 不动点 |
Network traffic flow evolutionary model considering new origin-destination demand under traffic guidance |
|
| DU Wei,XIAO Haiyan,HUANG Chongchao. Network traffic flow evolutionary model considering new origin-destination demand under traffic guidance[J]. Engineering Journal of Wuhan University, 2013, 46(1): 113-116 | |
| Authors: | DU Wei XIAO Haiyan HUANG Chongchao |
| Affiliation: | 1.School of Transportation,Nantong University,Nantong 226019,China; 2.School of Mathematics and Quantitative Economics,Hubei University of Education,Wuhan 430205,China; 3.School of Mathematics and Statistics,Wuhan University,Wuhan 430072,China) |
| Abstract: | The paper investigates the dynamical behavior of urban network traffic flow.In the evolution process of traffic flow in the urban network,travelers adjust the day-to-day route choice.Assuming that origin-destination(OD) demand and path flow are influenced by the OD travel costs,considering the route choice mode of new travelers under traffic guidance,a modified discrete traffic flow evolution model is proposed.The final traffic flow state as the fixed point of the model is analysed.The model can better formulate the adjustment process of traffic flow.Finally,a numerical example demonstrates the stability of the model. |
| Keywords: | network traffic flow evolutionary model OD demand fixed point |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |