Determination of Dangerous Parts of the Energy Transmission Line by the Canopy Height Model Produced from LiDAR Data

Abstract

LiDAR (Light Detection and Ranging) technique is preferable method to determine vertical metric values of High Voltage Transmission Lines (HVTL) in global regions and steep land. The importance of these facilities is increasing day by day because of the necessity of electricity energy in our daily life. Determination of vertical heights is an important problem especially in forested areas after construction. In this study, metric values of vegetation which violate vertical safety limits under voltage wires were determined by using Canopy Height Model (CHM) using LiDAR data. As a study area 450x150 m2 was selected the existing voltage line in the region between Beykoz District and Çekmeköy located on the Anatolian side of Istanbul. Firstly, it has been made conductive classification of HVTL that is using LiDAR classification techniques. Also it is determined the dangerous limits of trees and vegetation in HVTL vertical oscillation. As a result the comparison of the values of the vertical elevation with the local methods and obtained from the LiDAR data yielded a Root Mean Square Error (RMSE) value of 0.36m was found.