Beyond accuracy: evaluating alternative measurement methods in context of Flexible Land Tenure System in Namibia

Abstract

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.