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Feedback-based integrated motorway traffic flow control with delay balancing

Iordanidou Georgia-Roumpini, Papamichail Ioannis, Roncoli Claudio, Papageorgiou Markos

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URI: http://purl.tuc.gr/dl/dias/21088A85-678F-4751-A791-C8AFF97407DA
Year 2017
Type of Item Peer-Reviewed Journal Publication
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Summary

The development and deployment of simple, yet efficient, coordinated and integrated control tools for motorway traffic control remains a challenge. A generic integrated feedback-based motorway traffic flow control concept is proposed in this paper. It is based on the combination and suitable extension of control algorithms and tools proposed or deployed in other studies, such as ramp metering or variable speed limit (VSL)-enabled cascade-feedback mainstream traffic flow control, and allows for consideration of multiple bottlenecks. The new controller enables coordination of ramp metering actions at a series of on-ramps, as well as integration with VSL control actions, toward a common control goal, which is bottleneck throughput maximization. While doing this, the approach considers a pre-specified (desired) balancing of the incurred delays upstream of the employed actuators, via a suitably designed knapsack problem. Despite the multitude of the offered configurations, options, and possibilities, the genericcontrol algorithm remains simple, efficient, and suitable for field implementation. The control algorithm is demonstrated and evaluated using a validated macroscopic traffic flow model for a number of scenarios.

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