A SYSTEM TO MONITOR THE ROAD-USER COST OF URBAN TRAFFIC CONGESTION

IN ANY CONGESTED TRAFFIC STREAM, THE ROAD-USER COST OF TIME PLUS VEHICLE OPERATION INCLUDES A COMPONENT "COST OF CONGESTION" THAT IS ADDITIONAL TO THE COST ASSOCIATED WITH FLOW AT A MINIMUM ACCEPTABLE LEVEL OF SERVICE C. THIS PROJECT PERFORMED SPEED-AND-DELAY RUNS USING A TACHOGRAPH- EQUIPPED CAR ON ATLANTA ARTERIALS AND FREEWAYS. THE RESULTING SPEED-TIME GRAPHS WERE CONVERTED TO DOLLAR COSTS OF CONGESTION. THE CONVERSION WAS BASED ON THE TABLES OF VEHICLE OPERATING COST PUBLISHED IN 1969 BY WINFREY AND ON RECENT RESEARCH ON THE VALUE OF TIME TO AUTOMOBILE DRIVERS AND OPERATORS OF COMMERCIAL VEHICLES. THE CALCULATIONS WERE EXPEDITED BY THE COMPUTER PROGRAM RUNCOST, WRITTEN FOR THIS PROJECT BY THE FEDERAL HIGHWAY ADMINISTRATION. COMPUTER CALCULATIONS OF TIME COST PLUS OPERATING COST WERE PLOTTED AGAINST OBSERVED TRAVEL SPEEDS. THESE PLOTS YIELDED THE CONGESTION COMPONENTS OF ROAD-USER COSTS. ONE HOUR OF FIELD DATA COLLECTION WAS FOUND TO REQUIRE AN EXPENDITURE OF $15 FOR OFFICE PROCESSING. IT WAS CONCLUDED THAT THE MONITORING SYSTEM IS BOTH TECHNICALLY FEASIBLE AND ECONOMICAL. RECOMMENDATIONS FOR CONGESTION-MONITORING PROGRAMS AND FURTHER RESEARCH ARE PRESENTED. /AUTHOR/

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 1-10
  • Monograph Title: Transportation costs
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00202082
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Aug 7 1972 12:00AM