ARTERIAL PROGRESSION CONTROL AS DEVELOPED ON THE MOCKINGBIRD PILOT STUDY

AS PART OF A PROJECT TO IMPROVE TRAFFIC MOVEMENT THROUGH A CORRIDOR, FOUR INTERSECTIONS HAVE BEEN INSTRUMENTED AND CONTROLLED AS A SYSTEM. ADDITIONAL DETECTORS WERE ADDED TO THE SYSTEM AND ADDITIONAL ELECTRONICS ADDED TO THE CONTROLLERS TO PERMIT VARIABLE PHASE SEQUENCE OPERATION. A TRAFFIC SIGNAL PROGRESSION PROGRAM HAS BEEN DEVELOPED AND TESTED THAT CAN MAXIMIZE PROGRESSION ALONG A FACILITY HAVING MULTIPHASE SIGNALS. THE PHASE SEQUENCES OF LEFT-TURNS FIRST, THROUGH MOVEMENTS FIRST, LEADING GREEN, AND LAGGING GREEN CAN BE EVALUATED AT AN INTERSECTION. THE PROGRESSION PROGRAM CAN DETERMINE WHICH OF THE FOUR PHASE SEQUENCES WOULD PROVIDE THE MAXIMUM PROGRESSION. THE RESULTS OF THE STUDY SHOW AN IMPROVEMENT IN SEVERAL TRAFFIC PARAMETERS WHEN THE COMPUTER PROGRESSION PROGRAM IS IN USE AS COMPARED TO LOCAL ISOLATED CONTROL. THE HARDWARE SYSTEM IS DESCRIBED ALONG WITH FLOW CHARTS AND LISTINGS OF THE SOFTWARE SYSTEM DEVELOPED IN THE COURSE OF THE STUDY.

• Corporate Authors:

  Texas Transportation Institute

  Texas A&M University System, 1600 E Lamar Boulevard
  Arlington, TX  United States  76011
• Authors:
  • Whitson, R H
  • White, B
  • Messer, C J
• Publication Date: 1973-2

Media Info

• Pagination: 495 p.

Subject/Index Terms

• TRT Terms: Computer programs; Control; Detectors; Flow charts; Intersections; Progression (Mathematics); Software; Traffic control
• Old TRIS Terms: Detecting devices; Flow charting; Progression; Traffic control systems
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00225049
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: RF-953-3
• Contract Numbers: DOT-FH-11-7964
• Files: TRIS, USDOT
• Created Date: Jun 11 1974 12:00AM