Comparative Analysis Of Flexible Pavement Structure Design With Viscoelastic And Elastic Approach On The Sta 10+500 – Sta 11+000 Of Sentolo-Nanggulan-Dekso Road

Abstract

The Sentolo - Nanggulan - Dekso - Klangon road section is an alternative route that connects Yogyakarta International Airport with the Borobudur Temple area. The section, which has the status of a provincial road, is included as one of the supporting lines for the Borobudur National Tourism Strategic Area. The goal of this study was to find wether 2017 Bina Marga method optimum in holding the vehicle load within the planned timeframe, and to compare the design of existing pavement structure and the new design to estimate what damage occurred first. In designing the pavement structure of Sentolo – Nanggulan - Dekso Street, data is collected from National Road Planning and Supervision of D.I. Yogyakarta 2020. In this research, the pavement thickness is designed using two Mechanistic - Empirical methods which are Bina Marga 2017 method with Manual Perkerasan Jalan Nomor 02/M/BM/2017 guidance and supported by Kenpave program with Viscoelastic and Linier Elastic approaches. The analysis utilizing Bina Marga 2017 methodology yields the following pavement alternatives in thickness: AC-WC 4 cm, AC-BC 6 cm, AC-Base 14,5 cm, and A class Base Course 20,5 cm. With the exception of the AC-Base layer and class A Base Course , which is only 20 cm and 15 cm thick, these values are equal to the pavement's current thickness. After the flexible pavement alternative's design has been completed using the Kenpave program, axle load repetition continues for about 34,704,817.14 ESAL with the Linier Elastic approach and for about 33,856,927.47 ESAL with the Viscoelastic approach before permanent deformation occurs. With respect to that axle road repetition, the service life of a flexible pavement alternative is 35 years for a viscoelastic method and 36 years for a linier elastic approach. This simulation demonstrates that an alternative to rigid pavement