The problem of monitoring and regulating the freeway traffic flow to increase safety and efficiency is commonly considered to be a difficult task. In this paper, a variable speed signal-based control strategy is presented to solve an optimal control problem. The freeway traffic behaviour is described by means of a macroscopic model and the effects of the variable speed signalling are modelled with the introduction of suitable parameters. An optimal control problem over a finite-time horizon is stated with the aim of reducing the probability of freeway congestion. A suboptimal solution is found based on an on-off control logic, which depends on some switching parameters to be chosen.
Optimal control of freeways via speed signalling1
1997 European Control Conference (ECC) ; 1403-1408
1997-07-01
379966 byte
Conference paper
Electronic Resource
English
Optimal Control of Freeways via Speed Signalling and Ramp Metering
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