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 J4  2013, Vol. 47 Issue (3): 515-521    DOI: 10.3785/j.issn.1008-973X.2013.03.017
 土木工程

1. 浙江大学 建筑工程学院,浙江 杭州 310058；2. 浙江警察学院 治安系,浙江 杭州 310053
Optimal traffic detector locations for equal distribution
at urban network intersections
JIN Sheng1, XU Cheng2, WANG Dian-hai1
1. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China;
2. Department of Public Security, Zhejiang Police College, Hangzhou 310053, China
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Abstract:

This work proposed an optimal location method of traffic detectors based on the correlation of flow at urban intersections.  Multiple stepwise regression models were used for each detector, and the correlation matrix of detector field  data was obtained. The number of location detectors was determined by maximal linearly independent subset. By introducing the concept of Gini Coefficient in economics, an optimization model of equal distribution for the selection of key detectors was set under the minimum Gini Coefficient. The field intersections data from Wuyi-Wusi Road in Fuzhou were used to verify the validity of the proposed model and to analyze the trend of prediction error. Experimental results show that the mean absolute error and the mean relative error of volume were 10.44 vehicle/h and 8.13%, respectively.  The F value for test of significance has a strong linear correlation with the optimal number of traffic detectors．

 : U 491.1

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JIN Sheng1, XU Cheng2, WANG Dian-hai1. Optimal traffic detector locations for equal distribution
at urban network intersections. J4, 2013, 47(3): 515-521.

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