A GENERAL-PURPOSE MODEL FOR MOTOR VEHICLE OPERATING COSTS

THE COSTS OF MOTOR VEHICLE OPERATION VARY OVER TIME AND FROM PLACE TO PLACE. TO DEAL WITH THE TEMPORAL AND GEOGRAPHICAL CHANGES IN THE UNIT PRICES OF THE VARIOUS FACTORS THAT COMPRISE MOTOR VEHICLE OPERATING COSTS, THIS PAPER DISCUSSES A METHOD OF ESTIMATING MOTOR VEHICLE OPERATING COSTS ON THE BASIS OF PHYSICAL PARAMETERS AND QUANTITIES THAT CAN BE RELATED TO VEHICLE CHARACTERISTICS, HIGHWAY ALIGNMENT, AND TRAFFIC CONDITIONS. THE METHOD RELIES ON A COMPUTER PROGRAM THAT GENERATES TABLES OF OPERATING COSTS THAT ARE APPLICABLE OVER A WIDE RANGE OF SPEED AND GRADIENT FOR A SPECIFIED LEVEL OF SERVICE, HIGHWAY STANDARD, AND SURFACE TYPE. CALCULATIONS ARE CARRIED THROUGH IN TERMS OF UNITS OF CONSUMPTION, SUCH AS GALLONS OF FUEL, SO THAT ACTUAL COSTS MIGHT BE VARIED TO REFLECT LOCAL CONDITIONS AND CHANGING PRICES. EACH COMPONENT OF OPERATING IS OUTPUT FOR THE APPROPRIATE RANGE OF SPEED AND GRADE. THE PROGRAM IS DESIGNED PRIMARILY TO BE USED AS A SUBSTITUTE FOR CONTINUOUSLY UPDATING SUCH OPERATING COST SOURCES AS THE AASHO RED BOOK. A SAMPLE OUTPUT IS PRESENTED ILLUSTRATING USE OF THE MODEL TO GENERATE DATA FOR A PARTICULAR COMBINATION OF VEHICLE TYPE AND LEVEL OF SERVICE, ALONG WITH SUMMARY DATA FOR A RANGE OF SERVICE. A SERIES OF NOMOGRAPHS THAT PERMIT HAND CALCULATION OF OPERATING COSTS ARE ALSO PRESENTED. THE SAMPLE PROBLEM IS THEN TREATED BY COMPARING THE RESULTS OF USING THE COMPUTER-GENERATED OPERATING COST TABLES WITH HAND CALCULATION. /AUTHOR/

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 60-71
  • Monograph Title: Costs and benefits of transportation planning
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00201930
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Nov 9 1970 12:00AM