University of Twente Student Theses
Suitability of Unmanned Aerial Vehicle to Support Communal Land Registration in Zimbabwe
Munakamwe, B. (2022) Suitability of Unmanned Aerial Vehicle to Support Communal Land Registration in Zimbabwe.
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| Abstract: | The poor land registration in some parts of the world has been attributed to the continuous reliance on conventional cadastral surveying tools. These traditional tools, such as Total Stations and GNSS, are regarded as expensive, time-consuming, complex, and rigorous. Communal lands are the most affected, and the increasing demand for land from the growing population has resulted in several communal lands facing land disputes, forced evictions, and large-scale land acquisitions without compensation. It has become necessary to document and recognise communal land rights ensuring tenure security and alleviating unnecessary and forced evictions. Unmanned Aerial Vehicles (UAV) considered cost-effective and flexible, have emerged as an alternative tool for cadastral surveying and mapping for land recordation. This research determined the suitability of UAVs for communal land surveying in Zimbabwe. A comparison was made against GNSS in terms of legal recognition, accuracy, survey cost, and time required for a participatory boundary beaconing. Fieldwork, interviews, questionnaires, observations, and secondary data were used for the comparison. The UAV extracted coordinates from 20 Ground Control Points (GCP), and 6 GCPs generated orthophoto compared satisfactorily to GNSS coordinates of the same points. Furthermore, the geometrical accuracy obtained using 20 and 6 GCPs is approximately the same. The distance differences calculated between found beacons from UAV coordinates and previous survey record (DSG filed) coordinates conformed to Class C survey error limits of the Land Survey Regulations of Zimbabwe. In addition, it is less time-consuming and costly to acquire the same cadastral data using UAV than GNSS. Based on the findings of this research, the UAVs orthophotos accuracies are satisfactory for surveying and subsequent registration of communal lands. The survey costs are further reduced by using fewer GCPS which maintain acceptable accuracies. However, the LSR requires amendments to incorporate UAVs as a tool and its datasets. Further research is suggested on improving the automatic extraction of coordinates from the orthophoto for fast and consistent extraction of beacon coordinates. |
| Item Type: | Essay (Master) |
| Faculty: | ITC: Faculty of Geo-information Science and Earth Observation |
| Subject: | 38 earth sciences |
| Programme: | Geoinformation Science and Earth Observation MSc (75014) |
| Link to this item: | https://purl.utwente.nl/essays/91515 |
| Export this item as: | BibTeX EndNote HTML Citation Reference Manager |
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