Traffic flow optimization with QoS constrained network admission control

被引:1
|
作者
Csikos, Alfred [1 ]
Farhadi, Hamed [2 ,4 ]
Kulcsar, Balazs [2 ]
Charalambous, Themistoklis [2 ,3 ]
Wymeersch, Henk [2 ]
机构
[1] Hungarian Acad Sci, Inst Comp Sci & Control, Budapest, Hungary
[2] Chalmers Univ Technol, Dept Signals & Syst, Gothenburg, Sweden
[3] Aalto Univ, Sch Elect Engn, Dept Elect Engn & Automat, Espoo, Finland
[4] Harvard Univ, John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA
来源
IFAC PAPERSONLINE | 2017年 / 50卷 / 01期
关键词
Traffic control; traffic flow; admission and perimeter control; network fundamental diagram; travel time; Quality of Service; FUNDAMENTAL DIAGRAM; URBAN; MITIGATION;
D O I
10.1016/j.ifacol.2017.08.610
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
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. (C) 2017, IFAC (International Federation of Automatic Control) Hosting by Elsevier Ltd. All rights reserved.
引用
收藏
页码:5275 / 5280
页数:6
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