A Sufficiency Rating System for Secondary Roads in Iowa, HR-264, 1985

(1985) A Sufficiency Rating System for Secondary Roads in Iowa, HR-264, 1985. Transportation, Department of


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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. Some elements of an existing system used for primary roads could be modified for use with secondary roads, but would require extensive changes. The research reported here, sponsored by the Iowa Department of Transportation, 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. If a usable system were available that would yield reasonable results, county engineers would have an additional tool available to assist them in arriving at a defensible road improvement program.

Item Type: Departmental Report
Keywords: Civil engineers, Decision making, Improvements, Ratings, Secondary roads, Surveys, Transportation planning
Subjects: Transportation
Transportation > Roads and highways
Transportation > Research
Transportation > Economics, finance, and taxes
Transportation > Maintenance and preservation
ID Code: 22223
Deposited By: Iowa DOT Library
Deposited On: 27 May 2016 18:21
Last Modified: 27 May 2016 18:21
URI: https://publications.iowa.gov/id/eprint/22223