A new method for variable message sign layout based on the actual guidance effect maximization

doi:10.3969/j.issn.0253-2778.2017.04.009

Abstract

Abstract: In order to induce the urban traffic flow properly, a new optimization layout method for variable message signs based on maximization of the actual guidance effect was proposed. The repeated induction utility and the wasted induction utility were added in the calculation of the actual utility, which improved utility of repeated induction and calculation of the wasteful utility participation in actual utility. This method also redefined inductive coverage rate and inductive repetition rate. Finally, a method of solving the optimum layout function of message sign based on the greedy algorithm was designed. Evidence collected from 36 road’ segments verify that the method is simple and efficient, and capable of optimizing the allocation of the plate through the analysis of complex situations of traffic flow to increase the inductive efficiency of the whole system. Hence, it is more suitable for the needs of the actual traffic flow guidance.

Key words: variable message sign, guidance effect, layout optimization function, greedy algorithm

CLC Number:

TG156

GUO Yirong, WANG Xiaoming, WANG Min, ZHANG Hong. A new method for variable message sign layout based on the actual guidance effect maximization[J]. Journal of University of Science and Technology of China, 2017, 47(4): 342-349.

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