Evaluation Of Flexible Pavement Structure Design Using Mechanistic- Empirical Methods With Bina Marga 2017 And Kenpave Program With On The Sentolo-Nanggulan-Dekso Road Section Sta 3+635 – Sta 6+750

Abstract

Road is the infrastructure used to cross that is very necessary to reach various regions. The Sentolo-Nanggulan-Dekso road section used as a route of the Borobudur National Tourism Strategic Area. In 2021 based on a direct survey, there was an increase in traffic volume of heavy vehicles up to 15.94% of the total volume, where according to traffic data in 2019 only 7.82%.

To improve and develop road performance, a pavement planning and design approach is needed. This research was conducted to determine alternative flexible pavement thickness using Mechanistic – Empiric method with Bina Marga 2017 and Kenpave program to obtain the most suitable alternative pavement.

The existing pavement has total thickness of 50 cm and can accommodates load repetition until damage occur below than life plan which is 20 th . Alternative pavement resulted 2 alternatives, alternative 1 has total thickness of 54.5 consisting of AC WC 4 cm, AC BC 6 cm, AC Base 14.5 cm, and Class A foundation 30 cm. Alternative 2 has total thickness of 47.5 cm consisting of AC WC 4 cm, AC BC 6 cm, AC Base 7.5 cm, CTB 15 cm, and class A aggregate foundation of 15 cm thick. With viscoelastic model alternative 1 can accommodate load repetitions of 20,472,951.01 ESAL until rutting, and alternative 2 is 18,559,551.33 ESAL until rutting. With linear elastic model alternative 1 load repetition is 49,261,433.02 ESAL until rutting, and alternative 2 is 24,415,302.83 ESAL until deformation, where both alternatives can accommodate load repetitions up to the design life.