EVALUATION OF THE POSITIONAL ACCURACY OF OPENSTREETMAP COLLABORATIVE DATA: NEIGHBORHOOD ROAD AXES IN THE MUNICIPALITY OF UBERLÂNDIA (MG)

Abstract

The growing voluntary activity in the creation and distribution of geospatial data has attracted the attention of official mapping agencies in relation to the use of data from collaborative mapping in the production of a reference cartographic base. However, the quality of voluntary geographic information is heterogeneous, and it is necessary to measure the quality of its data. To this end, several studies have been developed in recent decades. The objective of this article is to analyze the positional accuracy of the representation of road axes in OpenStreetMap, comparing it with the reference mapping, in one of the districts of the municipality of Uberlândia, MG. For the accuracy analysis, the PEC-PCD criteria established by Decree n° 89,817, ET-ADGV Standard and ET-CQDG Standard were used, applied to a set of 353 pairs of homologous points in streets and road axes in the Morumbi neighborhood. The results show that the positional accuracy of the collaborative data for the study area obtained class B of the PEC-PCD for the scale of 1:10,000, considered with precision compatible with the mapping for the region, but below the usual cadastral scales.