Abstract A hierarchical control system consisting of three control layers is developed for the freeway traffic control problem. A simplified optimization problem for the overall freeway system is solved on-line in an optimization layer. Optimization results are used as reference values for an inferior decentralized direct control layer. Prediction of slowly varying variables like on-ramp demands and origin-destination rates as well as of particular model parameters are provided by a supremal adaption layer. The overall control structure is shown to be robust even in the case of strong unexpected disturbances like incidents.
A hierarchical control system for freeway traffic
Transportation Research Part B: Methodological ; 17 , 3 ; 251-261
1982-10-07
11 pages
Article (Journal)
Electronic Resource
English
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