IMPROVED CRITERIA FOR TRAFFIC SIGNALS AT INDIVIDUAL INTERSECTIONS INTERIM REPORT
A PRELIMINARY EXAMINATION OF EXISTING TRAFFIC SIGNALS WAS CONDUCTED ON SIMPLE INTERSECTIONS OF FOUR LANES CROSSING FOUR LANES. THE RESEARCH TASKS PERFORMED WERE'/1/ REVIEW OF PRIOR RESEARCH, /2/ FORMULATION OF A PRELIMINARY MODEL, /3/ TESTING AND REFINING THE MODEL, AND /4/ EXAMINATION OF CONTROLLERS AND CONTROL TECHNIQUES. A COMPREHENSIVE BIBLIOGRAPHY WAS ASSEMBLED AND STUDIED. SINCE IT APPEARED FROM THIS STUDY THAT THE INCLUSION OF ALL INFLUENTIAL FACTORS IN A COMPLEXITY PRECLUDING THE USE OF AN ANALYTIC MODEL, A DIGITAL COMPUTER SIMULATION MODEL WAS FORMULATED TO DESCRIBE TRAFFIC PERFORMANCE AT ISOLATED INTERSECTIONS. THE REFINED MODEL IS CONSIDERED VALUABLE IN SEVERAL RESPECTS' /1/ IT CONFORMS CLOSELY TO REALITY IN THAT A MIXTURE OF VEHICLE TYPES AND SIZES WITH VARYING CHARACTERISTICS OF DESIRED VELOCITY, ACCELERATION, DECELERATION, AND DRIVER DECISIONS AND RESPONSES FLOW THROUGH THE SYSTEM, /2/ IT IS SUFFICIENTLY DETAILED TO PERMIT MEASUREMENT OF A FULL RANGE OF TRAFFIC CHARACTERISTICS, EITHER FOR CONTROL PURPOSES OR TO GAGE PERFORMANCE, AND /3/ IT IS CHARACTERIZED BY FLEXIBILITY WHICH PERMITS MANY ALTERNATIVE CONTROL SCHEMES TO BE SUBMITTED FOR TESTING AND EVALUATION.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/00775614
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Supplemental Notes:
- No 3, 36 Pp, 4 FIG, 1 TAB, 282 REF, 2 APP
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Authors:
- Gerlough, D L
- Wagner, F A
- Publication Date: 1964
Media Info
- Pagination: 36p
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Serial:
- NCHRP Report
- Issue Number: 3
- Publisher: Transportation Research Board
- ISSN: 0077-5614
Subject/Index Terms
- TRT Terms: Control systems; Design; Digital computers; Intersections; Mathematical models; Reviews; Simulation; Testing; Traffic signal controllers; Traffic signals
- Uncontrolled Terms: Design criteria; Models
- Subject Areas: Design; Highways; Operations and Traffic Management;
Filing Info
- Accession Number: 00224782
- Record Type: Publication
- Files: TRIS, ATRI
- Created Date: Nov 7 1994 12:00AM