This paper proposes an innovative control scheme for regulating traffic in freeway networks via ramp metering in order to reduce congestion and traffic emissions. The control scheme is composed by a supervisor, acting at a higher level, which receives measurements from the whole network and periodically makes a prediction on the system evolution, and by local feedback controllers, acting at a lower level. These latter are extended PI-ALINEA controllers which compute the control action not only on the basis of measurements immediately downstream the on-ramp, as in standard PI-ALINEA, but also on the basis of other measurements or predictions referred to farther locations which are time-varying and communicated by the supervisor. The supervisor decides when the control law of extended PI-ALINEA controllers needs to be changed according to an event-triggered logic.
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Titolo: | Congestion and Emissions Reduction in Freeway Traffic Networks via Supervisory Event-triggered Control |
Autori: | |
Data di pubblicazione: | 2017 |
Rivista: | |
Handle: | http://hdl.handle.net/11567/886475 |
Appare nelle tipologie: | 04.01 - Contributo in atti di convegno |