İnsansız Hava Araçlarının Ormanlık Alanlardaki Karayolu Projelerinde Kullanımı.

Today, using unmanned aerial vehicles (UAVs) has become pretty widespread in engineering applications with software and hardware components that have been developed. Some photogrammetric problems have been eliminated due to the use of high resolution and different camera types by the UAVs that provide flight at different heights and speeds. With these developments, it is possible to produce SAM with high accuracy with UAV technique. This study has been carried out to investigate the usability of unmanned aerial vehicles in highway projects in forested areas. In this direction, the data obtained by the ground method and UAV have been compared in terms of volume quantities and elevation information. As a working area, a wooded highway corridor of about 800 meters in length and 300 meters in width has been chosen. Images have been taken by performing 4 flights at different heights and different overlay rates with unmanned aerial vehicle. The coordinates of ground control points and terrain detail points have been determined by the classical RTK method using the GNSS device. The images have been processed with a different number of ground control points (GCP) in the Pix4D and Agisoft PhotoScan software and the digital terrain models (DTM) have been produced. Location marking results and error amounts of ground control points, calculated soil work and the location of ground points produced by ground measurement technique and UAV method have been compared. As a result, the difference in the amount of soil work has been maximum 3.5% and the minimum has been 0.6%, and the differences between the heights of the points have been 12.9 cm and 15.9 cm. [ABSTRACT FROM AUTHOR]