Testing for the Suitability of Ground Control Points and Flying Height for Calculating Earthwork Volume from Unmanned Aerial Vehicle Data

Abstract

Nowadays, earthwork volume calculations use a Leveling or a total station to collect the topographic surface details in order to calculate the volume of earthwork by collecting the average surface detail an area, which results in inaccuracies in the calculated earthwork volume. To address these shortcomings, this research uses unmanned aerial vehicles type multirotor to collect topographical details by using photogrammetry theory and to study the impact of surface topographic data obtained from unmanned aerial vehicles. Drivers are formed by ground control points and flying heights by defining four types of control points, namely without ground control points, around of the area, In the center of the area and distributed grids. By specifying the Flying Height at 50 m, 60 m, and 70 m. The results of the test for finding the location of the ground control point suitable for calculating the earthwork volume showed that the positioning of the ground control point in a grid pattern was distributed over the area and the Flying Height. At 50 m, it was the most accuracy when Compared to the earthwork volume obtained from the total station and the error of earthwork volume at 1.78 cubic meters, representing a volume discrepancy of 1.13%.