Traffic congestion has been an important problem all over the *** transportation management system(ATMS) that provides information for traffic control and management addresses this *** algorithm,one of the most classi...
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ISBN:
(纸本)9781509046584
Traffic congestion has been an important problem all over the *** transportation management system(ATMS) that provides information for traffic control and management addresses this *** algorithm,one of the most classical congestion detection algorithms,has been widely used in ***,it still has some limitations such as difficulty of determining its parameters which are lower bound of uncongested data(LUD),critical occupancy(Ocrit) and critical volume(Vcrit).This paper transforms this problem to be an optimization problem and presents a new method that integrates gradient descent algorithm and particleswarmoptimizationalgorithm(GPSO),with which parameters of McMaster algorithm are extracted from the occupancy and volume of the *** it can determine the parameters of McMaster algorithm more quickly and *** parameters of McMaster algorithm are validated with real data from Yuwu Expressway in *** results show that GPSO can help operators find the best parameters more effectively and make McMaster algorithm yield a higher accuracy rate and recall rate.
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