EFFECT OF CONTROL DEVICES ON TRAFFIC OPERATIONS - INTERIM REPORT

ALTHOUGH STOP AND YIELD SIGNS ARE ONLY TWO OF MANY TRAFFIC CONTROL DEVICES, THEY ARE OF PARTICULAR INTEREST BECAUSE OF THEIR WIDESPREAD USE, LOW INITIAL COST, AND EASE OF INSTALLATION. PILOT STUDIES WERE CONDUCTED IN THE CHICAGO AREA TO DETERMINE THE EFFECT OF THIS TYPE OF INSTALLATION ON TRAFFIC OPERATIONS. SPEED, VOLUME, GAP AND LAG ACCEPTANCE, TRAVEL TIME AND DELAY, SAFETY, HEADWAY DISTRIBUTION, ROUTE CHOICE, AND DRIVER ACTIONS DATA WAS OBTAINED BY USING TIME- LAPSE PHOTOGRAPHY, ENOSCOPE SPEED STUDIES, MANUAL COUNTS, DRIVER QUESTIONNAIRES, AND TRAVEL STUDIES. PARAMETERS FOR INDIVIDUAL INTERSECTIONS, THE MEASURABLE EFFECT FROM CONTROL OF ADJACENT INTERSECTIONS, TRAVEL PATTERN CHANGES RESULTING FROM NEW INSTALLATIONS OR CHANGE IN TYPE OF TRAFFIC CONTROL DEVICES WERE STATISTICALLY ANALYZED AND COMPARED WITH OTHER RESEARCH RESULTS. TRAFFIC SIMULATION ON ELECTRONIC COMPUTERS FOR AT-GRADE INTERSECTIONS WAS REVIEWED AND RECOMMENDATIONS WERE MADE FOR FURTHER STUDY OF DESIRABLE COMPONENTS OF THE SIMULATION MODEL. THE RESULTING DATA, WHEN CORRELATED, SHOULD AID IN OBTAINING BASIC OPERATIONAL CHARACTERISTICS WHICH ARE UNIVERSALLY APPLICABLE.

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    • 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. No 11, 107 PP, 79 FIG, 3 APP
  • Publication Date: 1964

Media Info

  • Media Type: Digital/other
  • Pagination: 107p
  • Serial:
    • NCHRP Report
    • Issue Number: 11
    • Publisher: Transportation Research Board
    • ISSN: 0077-5614
  • Publication flags:

    Open Access (libre)

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Filing Info

  • Accession Number: 00224778
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Jul 1 1994 12:00AM