NETWORK FLOW SIMULATION FOR URBAN TRAFFIC CONTROL SYSTEM (FINAL REPORT)

THIS REPORT DESCRIBES AND DOCUMENTS THE DEVELOPMENT, CALIBRATION AND VALIDATION OF THE NETWORK SIMULATION MODEL UTCS-1, DESIGNED TO SERVE AS A MECHANISM FOR EVALUATING ALTERNATIVE TRAFFIC NETWORK CONTROL STRATEGICS. THE MODEL IS BASED ON THE "DYNET" NETWORK SIMULATION MODEL, AN EXTENSION OF THE "TRANS" MODEL, DEVELOPED MAINLY BY THE FHWA. THE UTCS-1 MODEL IS PROGRAMMED IN FORTRAN IV AND INCORPORATES THE FOLLOWING MAJOR FEATURES: (1) STOCHASTIC SIMULATION OF INDIVIDUAL VEHICLES BY TYPE, USING A SIMPLIFIED CAR- FOLLOWING MODEL WITH TIME-SCANNING PERIODS OF ONE SECOND; (2) CAPABILITY OF REPRESENTING A NETWORK OF, AT LEAST, 100 MODES; (3) A COMPLETE SET OF MEASURES OF EFFECTIVENESS OF THE TRAFFIC SYSTEM IN THE OUTPUT; (4) DETAILED TREATMENT OF PEDESTRIAN/VEHICLE INTERACTION, BUS TRAFFIC AND INTRA-LINK FRICTION SUCH AS ILLEGAL PARKING AND TAXICAB STOPPAGES; (5) SIMULATION OF ELECTRONIC SURVEILLANCE SYSTEMS; AND (6) REPLICATION OF ALL FORMS OF TRAFFIC CONTROLS INCLUDING REAL-TIME DYNAMIC SIGNAL CONTROL SYSTEMS. THE MODEL WAS CALIBARATED AND VALIDATED FOR A TWENTY INTERSECTION NETWORK IN WASHINGTON, D. C. DATA FOR THIS PURPOSE WAS OBTAINED FROM AERIAL PHOTOGRAPHY. VALIDATION EXERCISES SHOWED THAT THE MODEL REPRESENTS NETWORK FLOW WITH AN ACCEPTABLE DEGREE OF REALISM. HOWEVER, TREATMENT OF INTRA-LINK FRICTION STILL PRESENTS SOME DIFFICULTIES. /FHWA/

• Corporate Authors:

  PEAT MARWICK MITCHELL & CO

  WASHINGTON, DC  United States 

  Department of Transportation

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Bruggemann, J F
  • Lieberman, E
  • Worrall, R D
• Publication Date: 0

Subject/Index Terms

• TRT Terms: Computers; Electronic equipment; Highway traffic control; Intersections; Network analysis (Planning); Networks; Pedestrians; Real time control; Simulation; Stochastic processes; Traffic control; Vehicles
• Identifier Terms: FORTRAN (Computer program language)
• Uncontrolled Terms: Network flows
• Old TRIS Terms: Electronics (Traffic); Real-time systems; Traffic control systems
• Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; Pedestrians and Bicyclists; Vehicles and Equipment;

Filing Info

• Accession Number: 00227024
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Files: TRIS, USDOT
• Created Date: Feb 15 1982 12:00AM