Analysis of OpenStreetMap Data Quality at Different Stages of a Participatory Mapping Process: Evidence from Slums in Africa and Asia

ISPRS International Journal of Geo-Information - Tập 10 Số 4 - Trang 265
Godwin Yeboah1, João Porto de Albuquerque1, Rafael Troilo2, Grant Tregonning1, Shanaka Perera3, Syed Masroor Ahmed4, Motunrayo Ajisola5, Ornob Alam4, Navneet Aujla6, Iqbal Azam7, Kehkashan Azeem7, Pauline Bakibinga8, Yen‐Fu Chen6, Nazratun Nayeem Choudhury4, Peter J. Diggle9, Olufunke Fayehun10, Paramjit Gill6, Frances Griffiths6, Bronwyn Harris6, Caroline Kabaria8, Abdhalah Ziraba8, Afreen Zaman Khan4, Peter Kibe8, Lyagamula Kisia8, Catherine Kyobutungi8, Richard Lilford11, Jason Madan12, Nelson Mbaya8, Blessing Mberu8, Shukri F. Mohamed8,6, Helen Muir6, Ahsana Nazish7, Anne Njeri8, Oladoyin Odubanjo13, Akinyinka Omigbodun14, Mary E. Osuh15, Eme Owoaje16, Oyinlola Oyebode6, Omar Rahman17, Narjis Rizvi7, Jo Sartori11, Olalekan John Taiwo18, Philipp Ulbrich1, Olalekan A Uthman6, Sam Watson11, Ria Wilson6, Rita Yusuf4
1Institute for Global Sustainable Development, University of Warwick, Coventry CV4 7AL, UK
2Heidelberg Institute for Geoinformation Technology, Heidelberg University, 69120 Heidelberg, Germany
3Department of Computer Science, University of Warwick, Coventry CV4 7EZ, UK
4Centre for Health, Population and Development, Independent University Bangladesh, Dhaka 1212, Bangladesh
5National Institute for Health Research Project, University of Ibadan, Ibadan, Oyo State 200284, Nigeria
6Division of Health Sciences, Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
7Community Health Sciences Department, Aga Khan University, Karachi 74800, Pakistan
8African Population and Health Research Center, Nairobi 00100, Kenya
9Lancaster Medical School, Lancaster University, Lancaster LA1 4YW, UK
10Department of Sociology, Faculty of Social Sciences, University of Ibadan, Ibadan, Oyo State 200284, Nigeria
11Institute of Applied Health Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
12Warwick Clinical Trials Unit, Warwick Medical School, University of Warwick, Coventry CV4 7AL, UK
13Nigerian Academy of Science, Lagos 100213, Nigeria
14Department of Obstetrics and Gynaecology, Faculty of Clinical Sciences, College of Medicine, University of Ibadan, Ibadan, Oyo State 200284, Nigeria
15Department of Periodontology and Community Dentistry, Faculty of Dentistry, College of Medicine, University of Ibadan, Ibadan, Oyo State 200284, Nigeria
16Department of Community Medicine, Faculty of Public Health, College of Medicine, University of Ibadan, Ibadan, Oyo State 200284, Nigeria
17Department of General Education, University of Liberal Arts Bangladesh, Dhaka 1209, Bangladesh
18Department of Geography, Faculty of Social Sciences, University of Ibadan, Ibadan, Oyo State 200284, Nigeria

Tóm tắt

This paper examines OpenStreetMap data quality at different stages of a participatory mapping process in seven slums in Africa and Asia. Data were drawn from an OpenStreetMap-based participatory mapping process developed as part of a research project focusing on understanding inequalities in healthcare access of slum residents in the Global South. Descriptive statistics and qualitative analysis were employed to examine the following research question: What is the spatial data quality of collaborative remote mapping achieved by volunteer mappers in morphologically complex urban areas? Findings show that the completeness achieved by remote mapping largely depends on the morphology and characteristics of slums such as building density and rooftop architecture, varying from 84% in the best case, to zero in the most difficult site. The major scientific contribution of this study is to provide evidence on the spatial data quality of remotely mapped data through volunteer mapping efforts in morphologically complex urban areas such as slums; the results could provide insights into how much fieldwork would be needed in what level of complexity and to what extent the involvement of local volunteers in these efforts is required.

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ISPRS International Journal of Geo-Information

Tập 10 Số 4

265

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