Comparison analysis of flexible pavement runway layers between CBR, LCN, and FAA methods

Abstract

Ahmad Yani International Airport is located in Semarang City, Central Java, Indonesia. Runway length is 2650 x 45 m, located at an altitude of 3 meters above sea level and coordinates 06°58′17″S 110°22′27″E with flexible pavement. For subgrade CBR value of 3%. The purpose of this study is to evaluate the thickness requirements of runway pavement by comparing the calculation results with three methods, namely California Bearing Ratio (CBR) by analytical method, while for the graphical method by using the Load Classification Number (LCN) and Federal Aviation Administration (FAA) methods, according to the aircraft the biggest plan at the airport is the Boeing 737-900ER aircraft type. To get results that are safe, comfortable and economical. The basis for this calculation is subgrade soil with a CBR value of 3%. The results of the comparison of the three methods are LCN: FAA: CBR, namely 1: 1.14:1.55. From this case for the most efficient pavement thickness using the LCN method