Employing Incremental Outlines for OpenStreetMap Data Updating

• Published in: ISPRS international journal of geo-information Vol. 7; no. 7; p. 277
• Main Authors: Xing, Hanfa, Meng, Yuan, Chen, Jun, Song, Jie, Fan, Kaixuan
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01-07-2018
• Subjects: Accuracy; Data; Digital mapping; Geography; incremental changes; incremental outlines; Open systems; OpenStreetMap; Redundancy; Spatial data; Storage; Studies; Topographic databases; updating; France; United States > US; China; Germany
• ISSN: 2220-9964; 2220-9964
• DOI: 10.3390/ijgi7070277

The updating of changing information plays a significant role in ensuring the quality of OpenStreetMap, which is usually completed by mapping the whole changing objects with a high degree of uncertainty. The incremental object-based approach provides opportunities to reduce the unreliability of data, while challenges of data inaccuracy and redundancy remain. This paper provides an incremental outline-based approach for OpenStreetMap data updating to solve this issue. First, incremental outlines are delineated from the changed objects and distinguished through a spatial classification. Then, attribute information corresponding to incremental outlines is proposed to assist in describing the physical changes. Finally, through a geometric calculation based on both the spatial and attribute information, updating operations are constructed with a variety of rules to activate the data updating process. The proposed approach was verified by updating an area in the OpenStreetMap datasets. The result shows that the incremental outline-based updating approach can reduce both the time and storage costs compared to incremental objects and further improve data quality in the updating process.