ESTIMATION OF GREEN TIMES AND CYCLE TIME FOR VEHICLE-ACTUATED SIGNALS
An analytical method for estimating average green times and cycle time of vehicle-actuated signals is presented. The examination is limited to the operation of a basic actuated controller that uses passage detectors and a fixed gap time setting. Both fully actuated and semiactuated control cases are discussed. The practical cycle and green time method for computing fixed-time signal settings is also outlined. A discussion of the arrival headway distributions is presented since the estimation of arrival headways is fundamental to the modeling of actuated signal timings. The method given provides essential information for predicting the performance characteristics (capacity, degree of saturation, delay, queue length, and stop rate) of intersections controlled by actuated signals and for investigating the optimization of actuated controller settings. Further work is needed to validate and calibrate the formulas given using real-life and simulation data.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/0309061008
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Supplemental Notes:
- This paper appears in Transportation Research Record No. 1457, Part 2, Traffic Flow and Capacity. 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
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Authors:
- Akcelik, Rahmi
- Publication Date: 1994
Language
- English
Media Info
- Features: Figures; References;
- Pagination: p. 63-72
- Monograph Title: Part 1: 1994 TRB Distinguished Lecture, Adolf D May; Part 2: Traffic flow and capacity
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Serial:
- Transportation Research Record
- Issue Number: 1457
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Distributions (Statistics); Forecasting; Green interval (Traffic signal cycle); Headways; Intersections; Optimization; Performance; Pretimed traffic signal controllers; Schedules; Semi traffic actuated controllers; Traffic actuated controllers; Traffic signal cycle; Traffic signal timing
- Uncontrolled Terms: Performance characteristics
- Old TRIS Terms: Arrival; Semiactuated traffic signals
- Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;
Filing Info
- Accession Number: 00677648
- Record Type: Publication
- ISBN: 0309061008
- Files: TRIS, TRB, ATRI
- Created Date: May 11 1995 12:00AM