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Assessing the Effect of Data Imports on the Completeness of OpenStreetMap – A U nited S tates Case Study
Author(s) -
Zielstra Dennis,
Hochmair Hartwig H.,
Neis Pascal
Publication year - 2013
Publication title -
transactions in gis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.721
H-Index - 63
eISSN - 1467-9671
pISSN - 1361-1682
DOI - 10.1111/tgis.12037
Subject(s) - tiger , line (geometry) , geography , completeness (order theory) , data quality , computer science , business , marketing , computer security , mathematical analysis , metric (unit) , geometry , mathematics
The assessment of OpenStreetMap ( OSM ) data quality has become an interdisciplinary research area over the recent years. The question of whether the OSM road network should be updated through periodic data imports from public domain data, or whether the currency of OSM data should rather rely on more traditional data collection efforts by active contributors, has led to perpetual debates within the OSM community. A US C ensus TIGER /Line 2005 import into OSM was accomplished in early 2008, which generated a road network foundation for the active community members in the US . In this study we perform a longitudinal analysis of road data for the US by comparing the development of OSM and TIGER /Line data since the initial TIGER /Line import. The analysis is performed for the 50 US states and the District of C olumbia, and 70 U rbanized A reas. In almost all tested states and U rbanized A reas, OSM misses roads for motorized traffic when compared with TIGER /Line street data, while significant contributions could be observed in pedestrian related network data in OSM compared with corresponding TIGER /Line data. We conclude that the quality of OSM road data could be improved through new OSM editor tools allowing contributors to trace current TIGER /Line data.