APPLICATION OF EQUATION FOR ANNUAL ROAD COSTS

THE AVERAGE ANNUAL ROAD COST, EXPRESSED BY AN EQUATION GIVEN IN THE 1929 REPORT OF THE COMMITTEE ON HIGHWAY TRANSPORTATION COSTS, HIGHWAY RESEARCH BOARD, WAS SIMPLIFIED BY THE AUTHOR. CERTAIN FACTORS WERE REPLACED AND THE GENERAL EQUATION REDUCED TO: C = AR + B + 0.085 E SUB 10 + 0.052 E SUB 15 + 0.035 E SUB 20 IN WHICH E SUB 10 REPRESENTED THE ESTIMATED REPLACEMENT COST OF SUCH ITEMS AS HAVE AN EXPECTED LIFE FROM 10 TO 14 YEARS, E SUB 15 FROM 15 TO 19 YEARS, AND E SUB 20 FROM 20 TO 30 YEARS. C = AVERAGE ANNUAL ROAD COST; A = COST TO CONSTRUCT; B = YEARLY MAINTENANCE COST (EVERY YEAR); R = THE RATE OF INTEREST PREVAILING IN CURRENT STATE FINANCING. IN CONSIDERING CONSTRUCTION COSTS IN THE INTERESTING CONCEPTION WAS OFFERED THAT SINCE HIGHWAYS WERE ORIGINALLY BUILT AS MEANS OF COMMUNICATION AND IN LATER YEARS HAVE ALSO BECOME MEANS OF TRANSPORTATION, IN SOME CASES, THE COSTS INCIDENT TO THE TWO PURPOSES SHOULD BE SEPARATELY CONSIDERED. /AUTHOR/

• Record URL:
  • https://onlinepubs.trb.org/Onlinepubs/hrbproceedings/13/13-005.pdf
• Supplemental Notes:
  • Vol 13, ParT I, PP 70-79, 2 TAB. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Johannesson, S
  • Hitchcock, W W
  • Collings, W R
  • Morrison, R L
• Discussers:
  • MARSTON, A
• Publication Date: 1934

Media Info

• Media Type: Digital/other
• Monograph Title: Proceedings of the Thirteenth Annual Meeting of the Highway Research Board Held at Washington, D.C. December 7-8, 1933. Part I: Reports of Research Committees and Papers
• Serial:
  • Highway Research Board Proceedings
  • Volume: 13
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Applications; Construction; Costs; Equations; Financing; Highways; Maintenance management; Rates; Service life; States
• Uncontrolled Terms: Construction costs; Maintenance costs; Replacement costs
• Old TRIS Terms: Interest
• Subject Areas: Construction; Design; Economics; Finance; Highways; Maintenance and Preservation; Research; Society;

Filing Info

• Accession Number: 00201905
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Aug 23 1971 12:00AM