Evaluation of the Impact of Extra-Wide Tires on the Damage Factor in Flexible Pavement in Paracas, 2025

Abstract

This research addresses the problems affecting land transport routes due to the use of extra-wide tires on heavy-duty vehicles, as they cause significant damage that considerably reduces the lifespan of flexible pavement. The objective of this investigation is to analyze the damage factor of extra-wide tires on flexible pavement and determine its impact on the design of Equivalent Axles on the Paracas-to-San Martín Highway. Experimental data on the deflection caused by the heavy load on this section will be analyzed, KEMPAVE software will be used to calculate the damage factor, and WinDEPAV 2.6 will be used to determine the thicknesses of the flexible pavement layers. The study concludes that the damage factor of T3S3 vehicles increased by 41% compared to that calculated using the MTC Standard. For 10-year designs, the dimensions of the pavement layers were increased as follows: Asphalt layer by 6%, the base by 17% and the total structure by 7%, while for a 20-year period, they were increased as follows: Asphalt layer by 8%, base by 17% and the total structure by 8%.