Methodology to Estimate Load and Non-Load Shares of Highway Pavement RoutineMaintenance and Rehabilitation Expenditures

摘要

The present study focused on the estimation of load and non-load shares ofpavement maintenance and rehabilitation expenditures. The information provides the basis for the allocation of pavement-related expenditures in a highway cost allocation study. A comprehensive database was developed in the study and an aggregate performance approach was used based on econometric models. This approach utilizes the marginal effect of traffic loading to quantify the load and non-load shares of pavement routine maintenance and rehabilitation expenditures. This study revealed that the share of pavement damage attributable to load and non-load factors depends on several factors such as the type of improvement (routine maintenance or rehabilitation), pavement type, and other variables.