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原文传递 ANALYSIS OF ADAPTIVE SIGNAL CONTROL STRATEGIES IN URBAN CORRIDORS

题名：	ANALYSIS OF ADAPTIVE SIGNAL CONTROL STRATEGIES IN URBAN CORRIDORS
作者：	ANALYSIS OF ADAPTIVE SIGNAL CONTROL STRATEGIES IN URBAN CORRIDORS
关键词：	SIGNAL CONTROL; STRATEGIES; URBAN CORRIDORS
摘要：	Abstract This paper addresses the potential benefits of adaptive signal control strategies for urban corridors. A simulation study using the new version of CORSIM, which has the ability to model adaptive signal control logic, was used to compare the benefits of adaptive control logic against conventional coordinated fixedtime and actuated signals in an urban corridor. The measures of effectiveness used to identify the performance of each control strategy were average travel time, total travel time, and intersection delay parameters. The output of the simulation study showed that both adaptive control strategies showed a reduction in corridor travel time over well-optimized fixed-time signals. The percent reduction in total travel time was higher in the moderate peak-hour demand case. Within each demand level, the savings in total travel time was higher during the non-peak periods and decreased as traffic demand reached its peaking. During the 15- minute non-peak period of the peak hour, the reduction in total travel time was 5.9% in the moderate peak-hour demand case versus 1.89%in the high peak-hour demand case. These values were 1.2% and 0.4% during the 15-minute peak period of the peak hour. When compared with the coordinated actuated signals, neither of the two adaptive control strategies examined in this study showed a significant difference in corridor travel time or intersection delay parameters. This was true in both moderate and high peak-hour demand levels. Thus, it can be concluded that, within the demand levels examined in this study, a coordinated actuated signal system can provide savings in corridor travel time similar to those achieved by an adaptive control system.
总页数：	PROCEEDINGS OF 6TH WORLD CONGRESS ON INTELLIGENT TRANSPORT SYSTEMS (ITS), HELD TORONTO, CANADA, NOVEMBER 8-12, 1999. 1999. pp12
报告类型：	科技报告