Model and algorithm of optimizing alternate traffic restriction scheme in urban traffic network  

作　　者：徐光明 史峰 刘冰 黄合来 

机构地区：[1]School of Traffic and Transportation Engineering, Central South University

出　　处：《Journal of Central South University》2014年第12期4742-4752,共11页中南大学学报（英文版）

基　　金：Projects(71171200,51108465,71101155)supported by the National Natural Science Foundation of China

摘　　要：An optimization model and its solution algorithm for alternate traffic restriction(ATR) schemes were introduced in terms of both the restriction districts and the proportion of restricted automobiles. A bi-level programming model was proposed to model the ATR scheme optimization problem by aiming at consumer surplus maximization and overload flow minimization at the upper-level model. At the lower-level model, elastic demand, mode choice and multi-class user equilibrium assignment were synthetically optimized. A genetic algorithm involving prolonging codes was constructed, demonstrating high computing efficiency in that it dynamically includes newly-appearing overload links in the codes so as to reduce the subsequent searching range. Moreover,practical processing approaches were suggested, which may improve the operability of the model-based solutions.An optimization model and its solution algorithm for alternate traffic restriction（ATR） schemes were introduced in terms of both the restriction districts and the proportion of restricted automobiles. A bi-level programming model was proposed to model the ATR scheme optimization problem by aiming at consumer surplus maximization and overload flow minimization at the upper-level model. At the lower-level model, elastic demand, mode choice and multi-class user equilibrium assignment were synthetically optimized. A genetic algorithm involving prolonging codes was constructed, demonstrating high computing efficiency in that it dynamically includes newly-appearing overload links in the codes so as to reduce the subsequent searching range. Moreover,practical processing approaches were suggested, which may improve the operability of the model-based solutions.

关 键 词：urban traffic congestion alternate traffic restriction equilibrium analysis bi-level programming model 

分 类 号：U491[交通运输工程—交通运输规划与管理]