东南大学学报（自然科学版）2013，Vol.43Issue(4)：890-894,5.DOI:10.3969/j.issn.1001-0505.2013.04.040
基于交叉口多相位信号控制的路网容量
Capacity of road network with multi-phase signal controlled intersections
摘要
Abstract
A bi-level programming model is formulated to describe the capacity of road network with multi-phase signal controlled intersections.The low-level programming model is a user equilibrium assignment problem on road network with multi-phase signal controlled intersections,by which the equilibrium link traffic flows are obtained under given signal parameters and O-D (origin-destination) demands.This model takes signal delay of each phase into account.The upper-level programming model is a nonlinear program,in which signal parameters and O-D demands are optimized to maximize road network capacity.The BLABD (bi-level linear approximation based on difference)algorithm based on sensitivity analysis is put forward to solve the bi-level programming model.The main idea of the algorithm is to use the difference coefficient method to estimate the derivatives of equilibrium link flows with respect to designed variables,and thus the implicit link flow function on the up-level model is expended as a linear function.The numerical example results show that this algorithm can effectively solve the capacity of multi-phase signalized road network; thus,it is applicable to the real condition.关键词
路网容量/双层规划模型/交通网络分析/多相位信号控制/用户均衡Key words
road network capacity/bi-level programming model/transportation network analysis/multi-phase signal control/user equilibrium分类
交通工程引用本文复制引用
王建,邓卫..基于交叉口多相位信号控制的路网容量[J].东南大学学报（自然科学版）,2013,43(4):890-894,5.基金项目
国家高技术研究发展计划(863计划)资助项目(2007AA11Z202). （863计划）
