THE EFFECT OF HEAVY MOTOR VEHICLES ON HIGHWAY COSTS

THIS PAPER IS A DISCUSSION OF THE RELATIVE EFFECTS OF HEAVY AND LIGHT VEHICLES UPON THE VARIOUS ITEMS THAT AFFECT DESIGN AND COST. INCLUDED IN THE DISCUSSION ARE STATISTICS ON THE NUMBER OF VEHICLES IN EACH CLASS, TAXES PAID BY MOTOR VEHICLES, WEIGHTS AND DIMENSIONS OF TRUCKS AND BUSES, MILEAGE OF ROADS AND PAVEMENTS, AND FREIGHT TON-MILES HANDLED BY THE VARIOUS TRANSPORTATION AGENCIES. THE CONCLUSION IS THAT WIDTHS, GRADIENTS, ALIGNMENTS AND ALL OTHER ELEMENTS OF DESIGN OF MODERN HIGHWAYS, EXCEPT POSSIBLY THE THICKNESS OF PAVEMENT, ARE DETERMINED BY THE REQUIREMENTS OF PRIVATE PASSENGER AUTOMOBILES WHICH COMPRISE OVER 80 PERCENT OF ALL MOTOR VEHICLES. THE HEAVIER VEHICLES, HAVING A RATED CAPACITY OF 1 1/2 TONS OR MORE, COMPRISE ABOUT 2.5 TO 3 PERCENT OF ALL MOTOR VEHICLES USING THE ROADS AND CITY STREETS. THE PRESENCE OF THESE HEAVIER VEHICLES MAY REQUIRE SOME ADDITIONAL THICKNESS OF PAVEMENT BUT IT IS PROBABLE THAT THIS INCREASED THICKNESS OF PAVEMENT BUT IT IS PROBABLE THAT THIS INCREASED THICKNESS MAY BE ECONOMICALLY JUSTIFIED BY LONGER LIFE AND REDUCED MAINTENANCE. IN ANY EVENT THE ADDITIONAL COST OF THE EXTRA THICKNESS FOR HIGH TYPE PAVEMENTS CANNOT BE ESTIMATED AT OVER $2000 TO $4000 PER MILE. /AUTHOR/

  • Supplemental Notes:
    • Vol 14, ParT I, PP 79-122, 1 FIG, 2 TAB
  • Authors:
    • Lavis, F
    • Fairbank, H S
    • Thompson, J T
    • Pope, C S
    • Breed, C B
    • Downs, W S
  • Discussers:
    • MARSTON, A
  • Publication Date: 1935

Media Info

  • Monograph Title: Proceedings of the Fourteenth Annual Meeting of the Highway Research Board Held at Washington, D.C. December 6-7, 1934. Part I
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00201912
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Aug 15 1971 12:00AM