Annual Update of Data for Estimating ESALs - Planning Study # 9

A revised procedure for estimating cquivalent single axleloads (ESALs) was developed in 1985. This procedure used weight, classification, and traffic volume data collectcd by the Transportation Cabinet=s Division of Transportation Planning. The procedure was developed and documented as Rcsearch Report UKTRP-85-30, and was titled AEstimation of Equivalent Axleloads@. Since the revised procedure was adopted, there have been several changes to the procedures; the most recent being documented as Rcport KTC-95-7 titled AEquivalent Single Axle10ad Computer Program Enhancements@. Results documented in Report KTC-95-7 included improvements in the processing of ESAL data by agb'fegation of the functional classes to increase the accuracy of the estimates within a class, and convert computer programs used to process the data from mainframe to personal computer.