This paper presents a discrete time optimal control formulation for the freeway ramp metering problem and a computationally efficient procedure to solve it. The problem has a special structure: its control constraints can be reduced to box constraints through a variable transformation. This transformed problem is solved using a modified quasi-Newton method, which is shown to be superior to the conjugate gradient method in cases where traffic dynamics is more complicated.
An optimization algorithm for freeway traffic control
01.01.2001
446570 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
An Optimization Algorithm for Freeway Traffic Control
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