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作者

Dinao Tjia;Serena Coetzee

来源

HABITAT INTERNATIONAL,Vol.122,P.102531

语言

英文

关键字

作者单位

Department of Geography, Geoinformatics and Meteorology, University of Pretoria, South Africa;Department of Geography, Geoinformatics and Meteorology, University of Pretoria, South Africa;Department of Geography, Environment and Geo-Information, The Hebrew University of Jerusalem, Israel;Department of Agricultural Land Surveying, Cadastre and Photogrammetry, Faculty of Environmental Engineering and Land Surveying, University of Agriculture in Krakow, Poland;Department of Planning, Kwame Nkrumah University of Science and Technology, Ghana;Environmental Change and Governance Group (ECGG), School of Planning, Faculty of Environment, University of Waterloo, Canada;Department of Geography, Planning, Environment, Concordia University, Montreal, Quebec, Canada;School of Geography, The University of Nottingham, Nottingham, NG7 2RD, United Kingdom;Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing, 100101, China;School of Geographical Sciences, The University of Nottingham Ningbo, Ningbo, 315100, China;School of Public Administration, Guangxi University, Nanning, 530004, China;Department of Architecture and Built Environment, The University of Nottingham Ningbo, Ningbo, 315100, China;School of Public Administration, Hunan University, Changsha, 410082, China;School of Public Affairs, Zhejiang University, Hangzhou, 310058, China;African Centre for Cities, University of Cape Town, South Africa;Pegasys Group, South Africa;Centre for Urban Research and Planning, Department of Geography and Environmental Studies, University of Zambia, Zambia;School of Architecture, Planning and Geomatics, University of Cape Town, South Africa;Department of Management, Society and Communication, Copenhagen Business School, Denmark;Oregon State University, School of Civil and Construction Engineering, 101 Kearney Hall Corvallis, Oregon, 97331, USA

摘要

Accurate, current and complete information is indispensable for any effective intervention to upgrade a slum or informal settlement. Our involvement in supporting informal settlement upgrades with geospatial information prompted us to investigate what we could learn from literature to improve the collection and representation of geospatial information for such projects. For this paper, we systematically reviewed literature about informal settlement upgrading interventions for which geospatial information was used. We classified the geospatial information into three categories – physical, socio-economic, and boundaries – based on the phenomena they described, and categorized the methods of data acquisition. The results show that most studies collect geospatial information that enumerates and measures empirically observable characteristics (e.g, structures, infrastructure, utility services, mobility network, land description) and characteristics of occupants of informal settlements (e.g., socio-economic status). Fewer studies collected geospatial information about social networks and social ties. Data collection methods ranged from primary sources such as paper-based surveys, handheld/mobile GPS devices, vehicle-mounted cameras, etc., to secondary sources such as spaceborne, airborne and web-based platforms. Few studies made use of unmanned aerial vehicles (UAVs), despite their recent popularity as source of base maps, but we expect this to change in the near future. The results can be used to inform data collection strategies for informal settlement upgrades. Policy makers and other stakeholders involved in informal settlement upgrades can benefit from a single source of knowledge about such information.