FREEWAY OPERATIONS STUDY-PHASE III: INTERIM REPORT 2- ANALYTICAL TECHNIQUES FOR RAMP CONTROL

THIS REPORT DOCUMENTS THE DEVELOPMENT OF A COMPUTERIZED ANALYTICAL TECHNIQUE TO DETERMINE THE OPTIMUM METERING RATES FOR A GROUP OF ON-RAMPS. IN THE DEVELOPMENT OF THE FRAMEWORK FOR THE SYSTEMS ANALYSIS OF THE CONTROLLED SYSTEM THE NEED FOR TWO SUB-MODELS IS IDENTIFIED. THESE SUB-MODELS TOGETHER WITH THE INITIAL FREEWAY MODEL ARE INTEGRATED INTO A SINGLE COMPUTER PROGRAM, RAMPCON. THE USER HAS THE FLEXIBILITY OF MAXIMIZING EITHER TOTAL OUTPUT OR TOTAL VEHICLE MILES AS THE OBJECTIVE. LIMITATIONS OF THE PROGRAM ARE DISCUSSED AND RESULTS OF A TEST SYSTEM ARE PRESENTED. ALSO PRESENTED ARE METHODS OF ADJUSTMENT OF THE PROGRAM, INTEGRATION OF FIXED-TIME AND TRAFFIC- RESPONSIVE CONTROL, AND INVESTIGATION OF RAMP QUEUE CHARACTERISTICS. /FHWA/

• Supplemental Notes:
  • Contract No 13945-A13304
• Corporate Authors:

  University of California, Berkeley

  Institute of Transportation and Traffic Engineering
  Berkeley, CA  United States 

  California Division of Highways

  Bridge Department
  Sacramento, CA  United States  05914
• Authors:
  • Wang, J J
  • May, A D
• Publication Date: 1972-6

Media Info

• Pagination: 58 p.

Subject/Index Terms

• TRT Terms: Computer programs; Queuing; Ramps; Systems analysis; Traffic control
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00225023
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Files: TRIS, USDOT
• Created Date: May 7 1973 12:00AM