Evaluasi Kondisi Struktural Perkerasan Lentur Menggunakan Metoda AASHTO 1993 Studi Kasus: Ruas Ciasem-Pamanukan (Pantura)

. The purpose of this research is to evaluate the structural performance of flexible pavement, located in the North Java's National Road, i.e. Ciasem-Pamanukan Section. In the analysis of structural condition, the deflection data resulted from FWD (Falling Weight Deflectometer) was used to calculate some variables in the AASHTO-93 method, those are : the Subgrade Resilient Modulus (MR), the Effective Modulus above the Subgrade (Ep). Then the calculation was continued using the pavement thickness data and PSI value, to obtain the Original Structural Number (SNO), the actual cumulative ESAL, the Effective Structural Number (SNeff), the Remaining Life of pavement, and the Future Structural Number (SNf). The result of Structural Analysis using the AASHTO-93 method gave the Remaining Life for each section, and also recommend the treatment level needed for the same section, using the Bina Marga's Treatment Level criteria i.e. the ratio of SNeff to SNf equal to 0.70. The calculation of axle loading for heavy vehicles, using WIM's (Weight-in-Motion) data showed that a huge number of Truck Factor was obtained, for example : 91,54 for 7C-3 class. The axle-loading analysis showed also that is general, the heavy vehicles prefer to use the fast lane for each direction. In general, this research could justify that the National Road in North Java's corridor always need a very intensive maintenance program every year, due to high volume of traffic, and especially a very high number of Truck Factor for some Heavy Trucks