University of Twente Student Theses


Design and assessment of a procedure for building and maintaining point cadastres

Antwi, Robert Hackman (2012) Design and assessment of a procedure for building and maintaining point cadastres.

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Abstract:„Point cadastre‟ is a concept that applies single geographic points to represent parcels in a cadastral database. This innovative concept has been around for more than two decades and is sometimes referred to as „Single Point Cadastre‟, „Dots for Plots‟, „lots by dots‟ or midpoint cadastre. In this approach, boundary delineation and adjudication is of secondary concern and therefore the point cadastre can be completed much faster with little resources. The concept has potential in simple property taxation, basic tenure recordation, planning, and health management and so on, in both developed and developing countries. Current low cost spatial technologies including high resolution aerial imagery, handheld GPS receivers and open source GIS have created new opportunities for building and maintaining point cadastres. The objective of the research therefore is to design and assess a method of building and maintaining a point cadastre in line with relevant and pragmatic requirements and/or indicators. Literature review and documentary analysis were undertaken to enhance the understanding of the point cadastre concept. Requirements for building and assessing point cadastre were established through discussions with some cadastral and mapping practitioners and also through questionnaire administered to some professionals from organisations including FIG, FAO, UNHABITAT and World Bank. These requirements then served as guidelines for the point cadastre design. Various components were designed to meet requirements that are directly related to building of point cadastres. The design was then tested and assessed in a prototyping environment. In each component designed, two or three option available to the researcher were applied and assessed. In all twelve requirements relating to building components and assessment of points cadastres were established. Derived requirements relating to components for building a point cadastre are: application of available resources; coordinate reference system to apply; points for parcels representation (cadastral overlay); application of unique parcel identifier; and application of storage, display and query device. Requirements for the assessment ranked from most to least important using responses from the questionnaire are ease of use, cost, time/speed, flexibility, scalability and accuracy. The major components employed in the design include the use of GIS software; GPS mapping device; and satellite images. The assessment results showed that application of Quantum GIS; Juno SD (field data collection tool) and onscreen digitisation; alphanumeric identifier; and Google images produce the best outcome based on the requirements. The final design exhibits efficiency in terms of construction and maintenance; spatial accuracy; human capacity requirements; and system extension in a point cadastre for storing, displaying, querying and maintaining parcel data in the system. Further research could look into actual application of the design in a real situation especially in a developing country Keywords: Point cadastres; single point cadastre; land administration
Item Type:Essay (Master)
Faculty:ITC: Faculty of Geo-information Science and Earth Observation
Programme:Geoinformation Science and Earth Observation MSc (75014)
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