TEST AND EVALUATION OF COMPUTERIZED TRAFFIC CONTROL SYSTEM. (DIAMOND INTERCHANGE TRAFFIC CONTROL)

THE WESTERN AVENUE INTERCHANGE OF THE SANTA MONICA FREEWAY WAS INSTRUMENTED TO OPERATE UNDER COMPUTERIZED TRAFFIC CONTROL. A SERIES OF TESTS WAS CONDUCTED TO EVALUATE THE OPERATIONAL PERFORMANCE OF THE SYSTEM WITH RESPECT TO PRETIMED, 3-DIAL OPERATION. THE SURVEILLANCE SYSTEM, WHICH IS PART OF THE COMPUTERIZED SYSTEM, WAS USED AS ONE OF THE BASIC METHODS OF COLLECTING OPERATIONAL DATA. FLOATING-CAR TEST WERE ALSO CONDUCTED OVER THE FACILITY. THE BROAD SET OF RESULTS OBTAINED SHOWED THAT THE REAL-TIME CONTROL OF THE FACILITY PRODUCED REDUCTIONS IN DELAY IN THE ORDER OF 20-30 PERCENT. STOP TIME AND NUMBER OF STOPS WERE ALSO REDUCED. THE DEGREE OF IMPROVEMENT OBTAINED DEMONSTRATED THAT THE COMPUTERIZED CONTROL SYSTEM IS COST/EFFECTIVE.

• Corporate Authors:

  System Development Corporation

  2500 Colorado Avenue
  Santa Monica, CA  United States  90409
• Authors:
  • Torres, J F
• Publication Date: 1973-7

Media Info

• Pagination: 145 p.
• Serial:
  • Volume: 9

Subject/Index Terms

• TRT Terms: Cost effectiveness; Diamond interchanges; Information processing; Real time control; Traffic control; Traffic control devices; Traffic delays; Traffic surveillance
• Old TRIS Terms: Real-time systems; Traffic control systems
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00225039
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: FHWA-RD-73- 58 Final Rpt.
• Contract Numbers: DOT-FH-11-7568
• Files: TRIS, USDOT
• Created Date: Apr 3 1974 12:00AM