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Integration control for traffic corridors considering guidance information
Received:February 24,2008  Revised:November 18,2008
Keywords:Traffic corridor  Integration control  Multiple user classes  Dynamic traffic assignment
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Zhengwu WANG, Dayong LUO, Zhongxiang HUANG School of Traffic and Transportation Engineering, Changsha University of Science and Technology, Changsha Hunan 410076, China;School of Information Science and Engineering, Central South University, Changsha Hunan 410075, China 
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Abstract:
      The problem of designing integration traffic strategies for traffic corridors with the use of ramp metering, speed limit, and route guidance is considered in this paper. As an improvement to the previous work, the presented approach has the following five features: 1) modeling traffic flow to analyze traffic characteristics under the influence of variable speed limit, on-ramp metering and guidance information; 2) building a hierarchy model to realize the integration design of traffic control and route guidance in traffic corridors; 3) devising a multi-class analytical dynamic traffic assignment (DTA) model for traffic corridors, where not only the route choice process will be different for each user-class, but also the traffic flow operations are user-class specific because the travel time characteristic for each user-class is considered; 4) predicting route choice probabilities adaptively with real-time traffic conditions and route choice behaviors corresponding to variant users, rather than assuming as pre-determined; and 5) suggesting a numerical solution algorithm of the hierarchy model presented in this paper based on the modified algorithm of iterative optimization assignment (IOA). Preliminary numerical test demonstrates the potential of the developed model and algorithm for integration corridor control.
Zhengwu WANG, Dayong LUO, Zhongxiang HUANG.Integration control for traffic corridors considering guidance information[J].Journal of Control Theory and Applications,2009,7(4):445~453.
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