TRUCK BLOCKAGE OF SIGNALS
A previously developed and validated model of truck blockage of the line of signt of traffic signals was used to determine the extent of expected blockage as a function of signal location, traffic volume, and composition of approaching traffic. Both parametric analysis and simulation studies covered a wide range of speed, volume, and truck percentage conditions for 10 common two-head signal configurations as well as for 1 single-head configuration. Both horizontal and vertical locations of the individual signal heads were found to have an effect on expected blockage. Increasing volume and increasing truck percentage result in an increase in expected blockage.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
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Supplemental Notes:
- Publication of this 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:
- King, G F
- Abramson, P
- Duerk, C
- Publication Date: 1976
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: pp 1-9
- Monograph Title: Traffic control: signals and other devices
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Serial:
- Transportation Research Record
- Issue Number: 597
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Blocking; Line of sight; Location; Simulation; Traffic signals; Traffic volume; Trucks; Vehicle mix
- Subject Areas: Highways; Motor Carriers; Safety and Human Factors;
Filing Info
- Accession Number: 00149214
- Record Type: Publication
- ISBN: 0309025664
- Report/Paper Numbers: FCP 42l1024
- Contract Numbers: C-1-12
- Files: TRIS, TRB
- Created Date: Mar 30 1977 12:00AM