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Title: BENEFIT SENSITIVITIES OF ADAPTIVE TRAFFIC CONTROL STRATEGIES AT ISOLATED TRAFFIC SIGNALS
Accession Number: 00781546
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: A study of the possible benefits of using traffic adaptive and actuated signal control strategies at traffic signals is described here. The study indicated that delay estimates produced by INTEGRATION closely matched the delay estimates of the 1997 revision to the U.S. Highway Capacity Manual. Second, benefits of time-of-day control and adaptive control became more pronounced as the level of demand peaking increased. Third, well-designed time-of-day plans easily outperform fixed-time and adaptive strategies when the prevailing traffic demands match the controller's expectations. Adaptive strategies performed better than simple fixed-time control strategies, which were optimized only for the average demand level. It was also observed that all types of control strategies, especially adaptive control strategies, could be improved by introducing signal actuation. Finally, it was found that actuation improved the performance of the intersection for both uniform and random departure headways. Improvements were greatest when an adaptive control strategy was being implemented and the departure headway was random.
Supplemental Notes: This paper appears in Transportation Research Record No. 1692, Traffic Signing, Visibility, and Rail-Highway Grade Crossings.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Stewart, J ALepik, KVan Aerde, MPagination: p. 173-182
Publication Date: 1999
Serial: ISBN: 0309071151
Features: Figures
(8)
; References
(19)
TRT Terms: Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control
Files: TRIS, TRB, ATRI
Created Date: Jan 28 2000 12:00AM
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