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Traffic flow optimization with QoS constrained network admission control

A Csikos ; Hamed Farhadi ; Balazs Kulcsar (Institutionen för signaler och system, Reglerteknik) ; Themistoklis Charalambous (Institutionen för signaler och system, Kommunikationssystem) ; Henk Wymeersch (Institutionen för signaler och system, Kommunikationssystem)
The 20th World Congress of the International Federation of Automatic Control, IFAC 2017 World Congress, Toulouse, France. 9-14 July, 2017 (2017)
[Konferensbidrag, refereegranskat]

The paper proposes a control design method in order to gate input flow to a protected urban vehicular network such that travel time Quality of Service (QoS) constraints are preserved within the network. In view of the network to be protected (also called the region), two types of queues are distinguished: external and internal. While external queues represent vehicles waiting to enter the protected network, an internal queue can be used to describe the network's aggregated behaviour. By controlling the number of vehicles entering the internal queue, the travel time within the network subject to the vehicular conservation law and the Network Fundamental Diagram (NFD) can be subsequently controlled. The admission controller can thus be interpreted as a mechanism which transforms the unknown arrival process governing the number of vehicles entering the network to a regulated process, such that prescribed QoS requirements on travel time in the network and upper bound on the external queue are satisfied. The admission control problem is formulated as a constrained convex optimization problem and a Model Predictive Control (MPC) problem. A case study demonstrates the benefits of the admission control mechanisms proposed.



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Denna post skapades 2017-05-16.
CPL Pubid: 249354

 

Institutioner (Chalmers)

Institutionen för signaler och system, Reglerteknik (2005-2017)
Institutionen för signaler och system, Kommunikationssystem (1900-2017)

Ämnesområden

Transport
Transportteknik och logistik
Reglerteknik
Kommunikationssystem

Chalmers infrastruktur