Control Strategies for Oversaturated Traffic
Publication: Journal of Transportation Engineering
Volume 130, Issue 4
Abstract
Recently, a dynamic traffic control system designated as dynamic intersection signal control optimization (DISCO) has been developed. DISCO considers the entire fundamental diagram of traffic flow, which is essential for controlling congested and transient traffic. As a dynamic model, DISCO works with time-variant traffic patterns and derives dynamic timing plans. In this study, we applied DISCO to a congested network in Hong Kong and studied the various control strategies enabled by DISCO. The results showed that DISCO outperformed the existing plans by 30–40% in overall delay reductions. DISCO performed best under the most flexible control scheme of variable-green no-cycle strategy, given a good initial solution for the algorithm. Nevertheless, even good fixed-time plans can produce remarkable results.
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Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 130 • Issue 4 • July 2004
Pages: 466 - 478
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Apr 22, 2002
Accepted: Sep 11, 2003
Published online: Jun 15, 2004
Published in print: Jul 2004
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