Guidelines for Permitted Overloads. Part 2. Statistical Analysis of OverloadVehicle Effects on Indiana Highway Bridges

摘要

The report summarizes an analytical investigation carried out to develop a set ofguidelines for regulation of overload vehicles in Indiana. A formula based first phase evaluation of overload permit requests is developoed through statistical study of the rating of a reprensentative sample of the highway bridges in Indiana using a representative sample of overload vehicles observed in the state in 1990 and 1991 plus the HS 20 design vehicle and the two Indiana Toll Road loadings. A sample of 148 bridges is chosen from a total population of 3700 Indiana highway bridges using a proportionate stratified random sampling process.