Field time and costs: Collecting data using drones is faster than land survey methods. Because of carrying all equipment and moving to different points is time consuming, costly. Drone survey required less manpower and time to do the job with lower cost. Drones captures required photos from different angles with different coordinates, so GCPs is no longer required.
Accurate and exhaustive data: Drone flights can produce thousands of measurements and can be represented in Orthomosaic, DTM, DSM, Contour Lines and Point Cloud methods. All these methods can produce 3D maps which can contains 3D geo data
Mapping inaccessible areas: Aerial drones can fly in remote areas where it is difficult for surveyors to do the survey physically. Specially surveying inside forests, Rail tracks, Highways using drones are more effective.
Field time and costs: Collecting data using drones is faster than land survey methods. Because of carrying all equipment and moving to different points is time consuming and costly. Drone survey required less manpower and time to finish the task with lower cost. Drones captures required photos from different angles with different coordinates, so GCPs is no longer required.
Data accuracy: Drone flights can produce thousands of measurements and can be represented in Orthomosaic, DTM, DSM, Contour Lines and Point Cloud methods. All these methods can produce 3D maps which can contain 3D geo data
Mapping inaccessible areas: Aerial drones can fly in remote areas where it is difficult for surveyors to access physically. Specially surveying inside forests, rail tracks, highways using drones are more effective.