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An integrated optimal control and algorithm for commuting corridors
Author(s) -
Wu J.,
Chang GL.
Publication year - 1999
Publication title -
international transactions in operational research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.032
H-Index - 52
eISSN - 1475-3995
pISSN - 0969-6016
DOI - 10.1111/j.1475-3995.1999.tb00142.x
Subject(s) - computer science , control (management) , mathematical optimization , optimal control , algorithm , operations research , mathematics , artificial intelligence
An integrated optimal control model and its solution algorithm have been developed for commuting corridor management. Three traffic control measures, including ramp metering, intersection signal timing, and freeway flow diversion, have been incorporated and optimized simultaneously. As an improvement to our previous work, the presented model and algorithm have the following three unique features: (1) modeling traffic state evolution on surface streets with flow conservation within sections, flow transition between sections, and flow discharging at downstream intersections; (2) estimating time‐dependent model parameters adaptively with real‐time traffic measurements, rather than assuming as pre‐determined; and (3) having a limited‐step convergence property in its solution logic. Preliminary numerical tests have demonstrated the potential of the developed model and algorithm for integrated real‐time corridor control.