Vehicle Delay Estimation for an Isolated Intersection under Actuated Signal ControlReport as inadecuate

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Mathematical Problems in Engineering - Volume 2014 2014, Article ID 356707, 7 pages -

Research Article

School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin 150090, China

College of Traffic, Northeast Forestry University, Harbin 150080, China

College of Automobile and Traffic Engineering, Heilongjiang Institute of Technology, Harbin 150050, China

Received 6 March 2014; Revised 6 June 2014; Accepted 17 June 2014; Published 16 July 2014

Academic Editor: Jun Jiang

Copyright © 2014 Shumin Feng et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Vehicle delay at an actuated signal control ASC intersection is analyzed and computed with the aim of reflecting the effects of ASC and optimizing its parameters. The operation characteristics of traffic flows at the intersections serve as the foundation to present the mechanism of vehicle delay under the ASC; given that the arrival of vehicles obeys the Poisson distribution, probability algorithms of vehicle delay are put forward under the semi-ASC and fully ASC depending on discretization of green time. Computation process is illustrated by case study and CORSIM simulation experiments. Finally, the primary results indicate that the appropriate control modes can decrease vehicle delay, which is significantly affected by unit extension. Hopefully, the study will provide useful information for selecting different ASC modes and optimizing signal control parameters.

Author: Shumin Feng, Yusheng Ci, Lina Wu, and Fenglin Zhang



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