A REAL-TIME FRONTAGE ROAD PROGRESSION ANALYSIS AND CONTROL STRATEGY

Urban freeways frequently experience congestion due to normal peak-hour demands exceeding capacity and due to freeway incidents. It is proposed that, at lest during these conditions, the adjacent frontage roads should be operated as major arterials to provide additional freeway capacity. A real-time traffic-responsive frontage road progression analysis and control strategy that could be used in operating the frontage roads as a major traffic-carrying facility is presented. Previous computer control applications and future implementation of the strategy are discussed. The frontage roads are analyzed for progression as if the continuous, one-way frontage roads and diamond interchanges were combined to form a major two-way signalized arterial. To maximize frontage road progression, each interchange is assumed to operate on either a 3-phase or a 4-phase signal sequence. The progression optimization algorithm selects the phase sequence yielding the maximum progression. The traffic-responsive strategy using the 3- and 4-0hase signal sequences is also described.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1974/503/503-001.pdf
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=A+REAL-TIME+FRONTAGE+ROAD+PROGRESSION+ANALYSIS+AND+CONTROL+STRATEGY&author=C.+Messer&author=R.+Whitson&author=J.+Carvell&publication_year=1974
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
• 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.
• Authors:
  • Messer, Carroll J
  • Whitson, Robert H
  • Carvell Jr, J D
• Discussers:
  • McDermott, Joseph M
• Conference:
  • 53rd Annual Meeting of the Highway Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1974-1-21 to 1974-1-25
• Publication Date: 1974

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 1-12
• Monograph Title: Traffic control and guidance
• Serial:
  • Transportation Research Record
  • Issue Number: 503
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Algorithms; Diamond interchanges; Freeways; Frontage roads; Highway capacity; Information processing; Optimization; Progression (Mathematics); Traffic congestion; Traffic control; Urban areas
• Old TRIS Terms: Freeway capacity; Progression
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00264909
• Record Type: Publication
• ISBN: 0309022932
• Files: TRIS, TRB
• Created Date: Feb 11 1975 12:00AM