Estimation of Highway Needs for County Primary Road Systems in Michigan and Minnesota by Sample Survey Methods
Abstract
Highway needs studies are costly and time consuming and require large engineering staffs for their performance. Sample survey methods can be used to reduce the time and work required to make these studies.Complete inventory and cost data were available for the primary county road systems in Michigan and Minnesota and this information was used for statistical analysis. The ru- ral and urban systems in each state were composed, respective- ly, of separate highway, bridge, and railroad crossings popu- lations. A composite population composed of highway sections and bridge and railroad crossings located in the respective highway sections was also used. The total value of popula- tion characteristics and the variances of these character- istics was computed.
Degree
Ph.D.
Subject Area
Civil engineering
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