Analysis On the Impact of Traffic Overload on Asphalt Concrete Pavement’s Service Life in Jose Abad Santos Avenue (JASA) K0098 – K0099, Balsic, Hermosa, Bataan

Abstract

Trucks are primarily responsible for poor road conditions as they often overload more than the standard capacity of vehicles. It is significant to analyze the impact of traffic overloading on asphalt concrete pavement to attain its full-service life. The study area is the asphalt concrete pavement near kilometer post 0098 in Balsic, Hermosa, Bataan.  All the data used in this study was collected from DPWH Regional Office III and axle load factor method was utilized to determine the overloaded vehicles. It showed that 19% of the trucks weighed from the North Bound and 70% from South Bound were overloaded. The equivalence factor vs. axle load and pavement life vs. axle load graph and graph have been superimposed to evaluate the effect of axle load on the pavement. The average axle weight of 20.857 tons contributed the greatest amount of load, which caused the highest amount of damage. Moreover, premature failure of asphalt concrete pavement occurs at the age of 3.2 years, which is only 32% of its assumed 10-year design service life. Thus, the heavier the axle load, the greater the damage imposed on the pavement.  The assessment of the road condition is advisable at 3–3.4 years of pavement life as premature failure becomes evident. Therefore, it is recommended that regulations and guidelines must be strictly implemented to control the prevailing truck overloading.