Abstract

National roads in urban and rural areas use flexible pavement in general. If damage occurs on the pavement, structural road maintenance can be analyzed. The most commonly used evaluation for structural pavements is conducting a deflection survey using the Falling Weight Deflectometer (FWD) tool, where the results from the deflection evaluation can be used to determine the overlay. This research aims to conduct a structural evaluation of the Tanah Runtuh – Tawaeli National Road section and determine the required overlay thickness using the 2017 MDP and Austroads method. The road segment is divided into STA 10+000 to 12+656 and STA 14+400 to 18+700. The required overlay thickness using the 2017 MDP for average pavement temperatures of 47°C, 42°C, 41°C, 38°C, and 35°C is 80 mm for both segments. The required overlay thickness using Austroads method is 114mm and 98mm for a temperature of 47°C, 105mm for a temperature of 42°C, 97mm for a temperature of 41°C, 85mm for a temperature of 38°C, and 83mm for a temperature of 35°C. The analysis results using the 2017 MDP is not affected by the pavement temperature, meanwhile the overlay thickness from the Austroads method show that the pavement temperature affects the required overlay thickness.