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Title: NETWORKWIDE APPROACH TO OPTIMAL SIGNAL TIMING FOR INTEGRATED TRANSIT VEHICLE AND TRAFFIC OPERATIONS
Accession Number: 00749882
Record Type: Component
Availability: Find a library where document is available Abstract: An intermodal networkwide strategy is presented for the determination of optimal traffic signal timings in locations such as reserved transit malls in central business districts where light-rail transit (LRT) vehicles are subject to the same traffic controls as motor vehicles. The determination of optimal signal timings is crucial for public transit since delay at signals contributes significantly to passenger dissatisfaction with the system. Some jurisdictions have little or no coordination of traffic signals with LRT movements, whereas others use some priority systems, often signal preemption, that can seriously disrupt the flow of other traffic at intersections. The strategy considered here is unique because it is both integrated and networkwide, thereby balancing the needs of public transit with those of private vehicles. Traffic and LRT, including all intersections and stations, are treated as one intermodal system for which traffic signal timings are optimized to minimize delay and maximize throughput. The methodology is based on a neural network that determines, in real time, the parameters that control the traffic signal timings. It extends a previously developed methodology, a fundamentally new approach to signal timings for motor vehicular traffic, to the integrated LRT and traffic network. The approach is illustrated by a prototype simulation of part of the Baltimore central business district.
Supplemental Notes: Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
Monograph Accession #: 00749870
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Koch, M IChin, D CSmith, R HPagination: p. 126-131
Publication Date: 1997
Conference:
Seventh National Conference on Light Rail Transit: Building on Success--Learning from Experience
Location:
Baltimore, Maryland ISBN: 0309061520
Media Type: Digital/other
Features: Figures
(2)
; References
(11)
; Tables
(1)
TRT Terms: Geographic Terms: Old TRIS Terms: Subject Areas: Highways; Operations and Traffic Management; Public Transportation
Files: TRIS, TRB
Created Date: Jun 3 1998 12:00AM
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