SURVEILLANCE METHODS AND WAYS AND MEANS OF COMMUNICATING WITH DRIVERS
RESEARCH WAS CONDUCTED ON TRAFFIC SURVEILLANCE SYSTEMS FOR URBAN FREEWAYS AND INVESTIGATIONS MADE ON /1/ A METHOD FOR PREDICTING TRAVEL TIME ON AN URBAN FREEWAY IN THE EVENT OF A TRAFFIC TIE-UP, AND /2/ THE EFFECTIVENESS OF AN AIRBORNE OBSERVER TO REROUTE TRAFFIC IN THE EVENT OF A TRAFFIC TIE- UP. A MATHEMATICAL LOGIC WAS DEVELOPED TO PREDICT TRAVEL TIME ON AN URBAN FREEWAY IN THE EVENT THAT A MISHAP CAUSES A BREAKDOWN IN TRAFFIC FLOW. THE CALCULATIONS ARE TO BE PERFORMED IN REAL TIME ON A HIGH-SPEED DIGITAL COMPUTER. EVALUATION WAS MADE OF THE EFFECTIVENESS OF AN AIRBORNE OBSERVER TO MINIMIZE DELAY BY ISSUING ALTERNATE ROUTE ADVISORIES TO MOTORISTS. PRELIMINARY DESIGN WAS ACCOMPLISHED FOR A SURVEILLANCE SCHEME IN WHICH A CLOSED-CIRCUIT TELEVISION CAMERA IS BORNE ALOFT BY A TETHERED BALLOON. CONSIDERING THE TECHNICAL, OPERATIONAL, AND ECONOMIC PROBLEMS INVOLVED, THIS RESEARCH CONCLUDES THAT A BALLOON- BORNE CLOSED-CIRCUIT TELEVISION SYSTEM SHOULD BE CONSIDERED AS A NEW TECHNIQUE FOR AREA SURVEILLANCE.
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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.
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Authors:
- Weinberg, M I
- DeLeys, N J
- Schneeberger, R F
- Publication Date: 1966
Media Info
- Media Type: Digital/other
- Features: Appendices; Figures;
- Pagination: p. 1-66
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Serial:
- NCHRP Report
- Issue Number: 28
- Publisher: Transportation Research Board
- ISSN: 0077-5614
Subject/Index Terms
- TRT Terms: Aerial surveying; Balloons; Communications; Digital computers; Drivers; Freeways; Mathematical analysis; Methodology; Television cameras; Traffic congestion; Traffic surveillance; Travel time; Urban areas
- Uncontrolled Terms: Observation
- Old TRIS Terms: Parallel routes
- Subject Areas: Highways; Operations and Traffic Management;
Filing Info
- Accession Number: 00225143
- Record Type: Publication
- Report/Paper Numbers: HS-006 905, HS-001 685
- Files: HSL, TRIS, ATRI
- Created Date: Jul 12 1994 12:00AM