Metodologia para implantação da rede de referência cadastral da Região Metropolitana de Goiânia – GO

Abstract

The Municipal Cadastral Reference Chain (RRCM) consists of a basic support frame at the municipal level for all surveys for projects, cadastral surveys, or building development. The implementation of an RRCM is essential for the Multipurpose Territorial Cadaster (CTM), assuming fundamental importance in the planning, expansion and tax management of municipalities. The mapping activities carried out in Brazil are supported by mark stations that belongs to the Brazilian Geodesic System (SGB), managed by the Brazilian Institute of Geography and Statistics (IBGE). The work performed in the Metropolitan Region of Goiânia (RMG) aimed to develop a methodology to guide the implementation of a RRCM as proposed in the NBR 14.166/1998, verifying the quantity, quality and distribution of existing geodetic stations, as well as simulating scenarios for distribution of new landmarks to the densification of the existing geodetic network. The research comprised two main stages: the first was perform a diagnosis of the existing stations, and, the second, the simulation of the distribution of new landmarks, according to the NBR 14.166/1998. Initially, the choice of existing geodetic stations in the RMG was made from the SGB, to meet all activities aimed at cadastral surveys or engineering projects. Subsequently, a simulation of landmark distribution scenarios was carried out using spatial analysis in rural and urban areas. Such scenarios provided spatialization of the minimum infrastructure necessary for the implementation of the RRCM, so that they were simulated 212 geodetic landmarks of immediate support in urban areas and a minimum of 145 landmarks all in rural areas.