FOR AND AGAINST SEMI-ACTUATED TRAFFIC SIGNAL CONTROL

IT IS ARGUED THAT SEMIACTUATED SIGNALS SHOULD ONLY UNDER THE MOST INFREQUENT CIRCUMSTANCES BE INSTALLED FOR "ISOLATED" INTERSECTIONS, I. E., HALF A MILE OR MORE FROM THE CLOSEST SIGNAL-CONTROLLED INTERSECTION ON THE MAJOR STREET. THE ARGUMENT IS BASED BOTH ON THE CHARACTERISTICS OF SEMIACTUATED CONTROL AND THEIR EFFECT ON TRAFFIC FLOW, AND ON THE ADVANTAGES OF FULLY ACTUATED CONTROL IN OPTIMIZING FLOW. GREEN PHASE TIMING UNDER TWO TYPICAL SITUATIONS IS PRESENTED FOR THE CASE OF FULL ACTUATION. WHEN THE INTERSECTION IS PART OF A SYSTEM, I. E., LESS THAN HALF A MILE APART, THEN SEMI-ACTUATED CONTROL MAY BE ADVANTAGEOUS FOR THREE SITUATIONS THAT ARE DESCRIBED BRIEFLY.

• Authors:
  • Ficklin, N C
• Publication Date: 1973-3

Media Info

• Features: Figures; References;
• Pagination: p. 20-5
• Serial:
  • Traffic Engineering, Inst Traffic Engr
  • Volume: 43
  • Issue Number: 6

Subject/Index Terms

• TRT Terms: Green interval (Traffic signal cycle); Semi traffic actuated controllers; Traffic actuated controllers; Traffic flow; Traffic signal control systems
• Old TRIS Terms: Semiactuated traffic signals
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00226681
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 12 1973 12:00AM