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How to Improve Quality of Crowdsourced Cadastral Surveys

Author

Listed:
  • Konstantinos Apostolopoulos

    (School of Rural and Surveying Engineering, National Technical University of Athens, 15780 Athens, Greece)

  • Chryssy Potsiou

    (School of Rural and Surveying Engineering, National Technical University of Athens, 15780 Athens, Greece)

Abstract

The potential for introducing voluntary citizen participation, combined with mobile services, for cadastral data collection for a systematic first registration has been thoroughly investigated and even implemented in some official projects. This data collection procedure can technically be ac-complished safely, but results have shown that many participants have difficulty in identifying the land parcels (location, shape and size) on the base-map (orthophoto, air-photo, etc.) correctly. Either they have to ask the assistance of a private professional, or there is a high risk that a number of errors may appear in the submitted crowdsourced data. This paper investigates how to improve the quality of such crowdsourced cadastral data, by adding to the base-map any available and relevant geospatial and descriptive information that may help the participants to correctly identify their land parcel. In particular, the research investigates and suggests (a) which types of available geospatial information should be added to the base-map and by whom (professionals or a group of trained volunteers), and (b) the necessary quality controls that must be made in the compilation of the advanced crowdsourced base-map—a case study follows to assess the suggested proposal. In addition, this paper provides an updated version of the crowdsourced methodology for cadastral surveys as modelled by the authors in an earlier stage of their research. This updated version briefly includes all quality controls needed to ensure the quality of a modern cadastre that the authors will further investigate in a subsequent stage.

Suggested Citation

  • Konstantinos Apostolopoulos & Chryssy Potsiou, 2022. "How to Improve Quality of Crowdsourced Cadastral Surveys," Land, MDPI, vol. 11(10), pages 1-23, September.
    • Handle: RePEc:gam:jlands:v:11:y:2022:i:10:p:1642-:d:923436
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    References listed on IDEAS

    as
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    5. Moreri, Kealeboga & Fairbairn, David & James, Philip, 2018. "Issues in developing a fit for purpose system for incorporating VGI in land administration in Botswana," Land Use Policy, Elsevier, vol. 77(C), pages 402-411.
    6. Kathrine Kelm & Sarah Antos & Robin McLaren, 2021. "Correction: Kelm et al. Applying the FFP Approach to Wider Land Management Functions. Land 2021, 10 , 723," Land, MDPI, vol. 10(9), pages 1-1, September.
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