USE OF A COMPUTER AND VEHICLE LOOP DETECTORS TO MEASURE QUEUES AND DELAYS AT SIGNALIZED INTERSECTIONS
A COMPUTER PROGRAM HAS BEEN DEVELOPED TO OBTAIN THE TRAFFIC PARAMETERS OF VOLUME, SPEED, SPACE HEADWAY, DENSITY AND TIME HEADWAY FROM THE PULSES COMING FROM VEHICLE LOOP DETECTORS PLACED NEAR AN INTERSECTION. BY FINDING THE RELATIONS BETWEEN TIME HEADWAY AND QUEUE LENGTH AND TIME HEADWAY AND DELAY, IT IS SHOWN HOW THE COMPUTER PROGRAM CAN BE USED TO FIND QUEUE LENGTH AND DELAY AT SIGNALIZED INTERSECTIONS. FOR THE INTERSECTION STUDIED, VEHICLE ARRIVALS AT THE APPROACHES WERE RANDOM, I.E., THERE WAS NO PLATOON STRUCTURE REMAINING AFTER PASSAGE FROM THE PREVIOUS INTERSECTIONS. GRAPHS ARE SHOWN OF PLOTS OF DELAY VS VOLUME, AND OF QUEUE LENGTH VS VOLUME. A MEANS FOR CORRECTING THE COUNTS LOST IS ALSO DEVELOPED. /AUTHOR/
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Supplemental Notes:
- Paper sponsored by Committee on Traffic Control Devices. 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:
- CHRISTENSEN, A
- Publication Date: 1967
Media Info
- Media Type: Print
- Features: Appendices; Figures; References; Tables;
- Pagination: pp 34-53
- Monograph Title: Aspects of traffic control devices
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Serial:
- Highway Research Record
- Issue Number: 211
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Computer programs; Headways; Intersections; Measurement; Queuing; Traffic delays; Traffic density; Traffic flow; Traffic speed; Traffic volume; Vehicle detectors
- Subject Areas: Highways; Operations and Traffic Management;
Filing Info
- Accession Number: 00225203
- Record Type: Publication
- Files: TRIS, TRB
- Created Date: May 24 1994 12:00AM