计算机工程与应用 ›› 2009, Vol. 45 ›› Issue (18): 35-37.DOI: 10.3778/j.issn.1002-8331.2009.18.010

• 博士论坛 • 上一篇    下一篇

用户优化选线模型及其收敛性研究

许世燕1,贺昱曜2,李 雪1   

  1. 1.长安大学 电子与控制工程学院,西安 710064
    2.西北工业大学 航海学院,西安 710072
  • 收稿日期:2009-02-05 修回日期:2009-03-13 出版日期:2009-06-21 发布日期:2009-06-21
  • 通讯作者: 许世燕

Research on user-optimal model for route planning and convergence

XU Shi-yan1,HE Yu-yao2,LI Xue1   

  1. 1.School of Electronic and Control Engineering,Chang’an University,Xi’an 710064,China
    2.College of Marine Engineering,Northwestern Polytechnical University,Xi’an 710072,China
  • Received:2009-02-05 Revised:2009-03-13 Online:2009-06-21 Published:2009-06-21
  • Contact: XU Shi-yan

摘要: 从交通规划及结构优化的角度出发,将交通流均衡和拓扑优化算法引入道路选线问题,提出用户优化模型及其收敛算法。通过连续交通流均衡分配模型,描述通勤者的出行行为;有限元方法与渐进结构优化算法相结合,找到城市区域内流量密度最集中且均匀分布的地区,并将其作为初始设计阶段的城市主干道位置。最后给出数值算例,其结果证明了模型和算法的有效性。

关键词: 路线选择, 用户优化, 交通均衡, 有限元, 渐进结构优化

Abstract: Traffic equilibrium and topology optimization are imported to route planning problem.A user-optimal model and algorithm for initial route planning are proposed based on transport planning and structural optimization theory.Continuum traffic equilibrium model is used to describe the commuters’ behavior flexibly.Finite element method and Evolutionary Structural Optimization(ESO) are used to get the parts in which flow intensity level is uniform and concentrated.Then the initial location of future artery is found.A numerical example is given to demonstrate the effectiveness of the proposed methodology.

Key words: route select, user-optimal pattern, traffic equilibrium, finite element, evolutionary structural optimization