研究・技術ノート
オープンストリートマップ道路データとデジタル道路地図の比較
-位置と完全性に着目して-
2019 年 27 巻 1 号 p. 43-48
詳細
2019 年 27 巻 1 号 p. 43-48
OpenStreetMap (OSM), well-known as one of famous and continuous Volunteered Geographic Information (VGI) activities to establish open geospatial database, has been updated and maintained by a lot of volunteers all over the world day by day. In addition, OSM has attracted various kinds of users due to its worldwide coverage and open license. However, as volunteer mappers have generated or have edited OSM data, data quality such as positional accuracy, completeness and freshness is heterogeneous in different regions. Therefore, it is required and important for OSM users and mappers to evaluate data quality quantitatively and regularly. Especially, in Japan, there are not existing researches dealing with nationwide usability of OSM road data by comparing with other road data. Toward discussing significant criteria of data quality assessment, this paper describes the comparison results between OSM road data and Digital Road Map (DRM), on the perspective of positional difference and area coverage in 1 km grids and city boundaries.
