ROAD DESIGN WITH DEFLECTION METHOD
Syafiatun Siregar, Semedi Napitupulu, Kinanti Wijaya, Hamidun Batubara, Trimailuzi,

Universitas Negeri Medan

Abstract

The road is a means of connecting from one area to another that can be traversed by vehicles. In designing a road, the important thing to do is that it must be supported by optimal road maintenance activities. The condition of the initial damage to the highway is mainly due to the presence of overloaded vehicles passing through the road, planning the quality of the dense traffic pavement layer that does not comply with the requirements, design errors in determining the thickness of the pavement, and inadequate road support facilities (road drainage system). To anticipate road damage, it is necessary to overlay. This research was conducted on the Lolowau - Siwalawa II road, Gunungsitoli City, 10,7 km long. This study aims to design detailed designs according to standardization to increase road capacity. The methodology used adopts the 2017 Highways and AASTHO 1993 planning standards, starting from the stages of LHR collection, deflection analysis (BB), traffic analysis, and deflection analysis (FWD). Calculation of the thickness of the overlay is done by CESA analysis. The results of the analysis obtained are that the width of the road pavement is planned to be 4.5 meters with a total of 2 lanes and the direction of the vehicle lanes is 2 directions with a design life of 10 years. Overlay with 22 cm Lapen pavement and 7 cm thick overburden.

Keywords: Road, Pavement, Deflection method

Topic: Sciences, Engineering and Material Science