Model and algorithm of optimizing alternate traffic restriction scheme in urban traffic network
Guang-ming Xu , Feng Shi , Bing Liu , He-lai Huang
Journal of Central South University ›› 2014, Vol. 21 ›› Issue (12) : 4742 -4752.
Model and algorithm of optimizing alternate traffic restriction scheme in urban traffic network
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.
urban traffic congestion / alternate traffic restriction / equilibrium analysis / bi-level programming model
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