Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/1200
Title: Assessing openstreetmap data using intrinsic quality indicators: An extension to the QGIS processing toolbox
Authors: Sehra S.S
Singh J
Rai H.S.
Keywords: Completeness
Intrinsic indicators
OpenStreetMap
QGIS
Issue Date: 2017
Publisher: MDPI AG
Abstract: OpenStreetMap (OSM) is a recent emerging area in computational science. There are several unexplored issues in the quality assessment of OSM. Firstly, researchers are using various established assessment methods by comparing OSM with authoritative dataset. However, these methods are unsuitable to assess OSM data quality in the case of the non-availability of authoritative data. In such a scenario, the intrinsic quality indicators can be used to assess the quality. Secondly, a framework for data assessment specific to different geographic information system (GIS) domains is not available. In this light, the current study presents an extension of the Quantum GIS (QGIS) processing toolbox by using existing functionalities and writing new scripts to handle spatial data. This would enable researchers to assess the completeness of spatial data using intrinsic indicators. The study also proposed a heuristic approach to test the road navigability of OSM data. The developed models are applied on Punjab (India) OSM data. The results suggest that the OSM project in Punjab (India) is progressing at a slow peace, and contributors' motivation is required to enhance the fitness of data. It is concluded that the scripts developed to provide an intuitive method to assess the OSM data based on quality indicators can be easily utilized for evaluating the fitness-of-use of the data of any region. � 2016 by the author.
URI: 10.3390/fi9020015
http://hdl.handle.net/123456789/1200
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