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Beyond accuracy: evaluating alternative measurement methods in context of Flexible Land Tenure System in Namibia
Survey Review ( IF 1.6 ) Pub Date : 2021-06-02 , DOI: 10.1080/00396265.2021.1933696
Roswitha Lauterbach 1 , Walter Timo de Vries 1
Affiliation  

Namibia currently undergoes a rapid process of urbanisation of 4% annually, visible through an exponential informal settlement growth. Alternative measurement methods in cadastral mapping could secure land tenure in these settlements and fasten land registration. This article investigates the performance of five alternative measurement methods within the Flexible Land Tenure System (FLTS): orthophoto-based boundary demarcation, mapping applications on mobile devices, hand-held GPS, low-cost GNSS with u-blox receiver and GNSS RTK based on the Namibian CORS. The article evaluates all five methods on technical performance, affordability, time efficiency, feasibility, and simplicity. Based on the evaluation, all methods are appropriate for Namibia except for the hand-held GPS method. Low-cost approaches are appropriate for starter titles, whereas high-technology methods are better when requiring higher positioning accuracy (land hold title). Orthophoto-based boundary demarcation is surprisingly less suitable for the Namibian case. Overall, the results support a fit-for-purpose land administration in Namibia.



中文翻译:

超越准确性:评估纳米比亚灵活土地使用制度背景下的替代测量方法

纳米比亚目前正经历着每年 4% 的快速城市化进程,这从非正规住区的指数级增长可见一斑。地籍测绘中的替代测量方法可以确保这些定居点的土地使用权并加快土地登记。本文研究了灵活土地使用权系统 (FLTS) 中五种替代测量方法的性能:基于正射影像的边界划分、移动设备上的测绘应用、手持 GPS、具有 u-blox 接收器的低成本 GNSS 和基于 GNSS RTK在纳米比亚 CORS 上。本文评估了所有五种方法的技术性能、可负担性、时间效率、可行性和简单性。根据评估,除手持 GPS 方法外,所有方法都适用于纳米比亚。低成本方法适用于入门游戏,而当需要更高的定位精度(土地所有权)时,高科技方法会更好。令人惊讶的是,基于正射影像的边界划分不太适合纳米比亚的情况。总体而言,结果支持在纳米比亚进行适合用途的土地管理。

更新日期:2021-06-02
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