ENERGY SAVINGS FROM INCREASED PREVENTIVE MAINTENANCE ON INDIANA HIGHWAYS

In this paper are described the development of trade-off relationships between routine pavement maintenance activities and the application of these relationships in estimating the savings in fuel used in pavement maintenance in Indiana. Two major routine pavement maintenance activities were considered: patching (corrective maintenance) and sealing (preventive maintenance). The results showed that when more sealing was done before winter less patching was required after winter. Different highway classes, pavement types, and geographic locations are taken into consideration. The application example assesses possible cost savings in terms of savings in direct fuel consumption by the maintenance equipment fleet.