A Sufficiency Rating System for Secondary Roads in Iowa: Volume I

County engineers in Iowa face the dual problems of rapidly escalating costs and a decreasing rate of growth of revenues. Various priority systems are in use, ranking projects for inclusion in road improvement programs, but they generally have weaknesses when used to compare one project with another in a different location. The sufficiency rating system has proven to be a useful tool in developing a priority list of projects for primary road systems, but there are none currently in use for secondary road systems. The research reported here was undertaken to develop a sufficiency rating system which could be used for secondary roads in Iowa and to produce the necessary forms and instructions to aid county engineering personnel in their efforts to complete the ratings for roads within their county.

  • Record URL:
  • Corporate Authors:

    Iowa Department of Transportation

    Highway Division, 800 Lincoln Way
    Ames, IA  United States  50010

    Iowa Department of Transportation

    Iowa Highway Research Board, 800 Lincoln Way
    Ames, IA  United States  50010

    Iowa State University, Ames

    Engineering Research Institute
    Ames, IA  United States  50010
  • Authors:
    • Mercier, Cletus R
  • Publication Date: 1985-6


  • English

Media Info

  • Media Type: Digital/other
  • Features: References; Tables;
  • Pagination: 61p

Subject/Index Terms

Filing Info

  • Accession Number: 01576205
  • Record Type: Publication
  • Report/Paper Numbers: HR-264, ERI Project 1654, ISU-ERI-Ames-86004
  • Created Date: Sep 11 2015 12:39PM