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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