A convex control model of dynamic system optimal traffic assignment

被引：9
|
作者：
Wie, BW [1 ]
机构：
[1] Univ Hawaii, Sch Travel Ind Management, Honolulu, HI 96822 USA
来源：
CONTROL ENGINEERING PRACTICE | 1998年 / 6卷 / 06期
关键词：
transportation; optimal control; dynamic systems; convex optimisation;
D O I：
10.1016/S0967-0661(98)00080-X
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, a dynamic system-optimal traffic assignment model is formulated as a convex control problem for a congested general network with many origins and many destinations. Analytical and computational difficulties caused by the nonconvexity of the previous models are eliminated. The modeling of are traffic dynamics is improved to prohibit instantaneous flow propagation on each are even though the concave exit functions are still employed to represent the physical process of traffic congestion. An economic interpretation of the optimality conditions is given as a dynamic assignment principle which requires equilibration of actual marginal costs on all the paths that are used. A numerical example is also presented. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：745 / 753
页数：9
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