Cadastre : the key component in urban-based information systems
Cete, Mehmet and Tahsin Yomralioglu
The most important component needed in realizing a sustainable land development is a parcel-based data which acquired from the cadastral records. These data define not only size, shape, location, value of the real estate but also land-related rights, restrictions and responsibilities. While cadastre provides a guarantee and protects landownerrs rights in many countries, it is also used for new land policy aims. Therefore, cadastre plays an important role on states in order to develop and supply new services such as spatial-based information systems in urban areas. Urban Information Systems (UIS) can be considered as an implementation of GIS in urban extent. It is an effective tool for local authorities with respect to manage urban relevant data and well-qualified service offer. Many geospatial data should be examined at the same time in UIS because of land planning, development and other decision-making procedures. However, land parcel-based information is very significant within this entire management task. From land taxation to environmental works in urban areas, cadastral documents are the main references which are always needed for a meaningful decision-making. Because cadastre is a methodically arranged public inventory of data concerning properties within a certain area, up-to-date cadastral data should be available for any time. If such data is in a digital form then it could be more valuable for an UIS application. But, the availability of cadastral data is also depending on the existing institutional structure and data use policy of a certain country as well. In this paper, firstly, the role of cadastral data in urban information procedures will be emphasized, and then the data quality and legal issues of introducing cadastral data to UIS applications of Turkey will be examined with regard to an organizational perspective.
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