Análise comparativa entre os métodos de levantamento planialtimétrico (topografia convencional e aerofotogramétrica): estudo de caso: entorno da Ponte Sérgio Arruda

Abstract

This study aims to explore the concepts of Topographic Survey in the sphere of Civil Engineering, in addition to presenting the techniques of Aerophotogrammetry, a technology perfected in recent decades that has much to contribute to the field of construction. The study intended to compare different methodologies for topographic surveys: conventional – using a Total Station – and Aerophotogrammetric – with Remote Pilote Air (RPA) – with the purpose of obtaining the same product: the cadastral plan of the surroundings of Sergio Arruda Bridge, located near Canal of Jandiá, municipality of Macapá-AP. The survey was performed using a Topcon Signus Total Station with 3mm precision, GPS L1 and L2 Topcon Senior and the RPA DJI model Mavic 2 Pro, which flies over the area capturing images for processing, which generates the orthophoto, contour lines, MDT, MDS and the 3D Model of the environment. The following criteria were compared for both products: Precision, Cost-Effectiveness, Operational Feasibility and Service Time. The comparison between the methods of planialtimetric surveys shows a proximity between the results from the Total Station and the Aerophotogrammetry. In addition, RPA can generate the Orthomosaic of the mapped region, which is a unique product for this methodology and can be used for various purposes, such as monitoring and analyzing the region.