Spatially referenced data, stored as Geo Information System (GIS) data is needed for numerous applications like map services or administration. Thus, quality assessment of GIS data is of highest importance. Manual quality checks and updates are very time consuming, therefore support through automatic systems is required. Typically, semi-automatic systems are used to narrow down the list of obje...

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A need exists within urban planning for techniques to promote sustainable policies and developments for this to become possible, we need to enhance and facilitate stakeholder understanding and involvement in decision making and in monitoring the impacts of management policies. GIS (Geographical Information Systems) are commonly used as planning and analysis tools in developing countries, while ...

At first glance, the domain of health is no typical area to applicate Geographical Information Systems (GIS). Nevertheless, the recent development clearly shows that also within the domains of environmental health, disease ecology and public health GIS have become an indispensable tool for processing, analysing and visualising spatial data. In the field of geographical epidemiology, GIS are use...

Municipal GIS Implementations: Top-down vs. Bottom-up Track: State and Local Government Author(s): Haiqing Xu There are always cases that spatial data is needed for one-time use only or by a smaller group of people. For example, spatial data collected from sample surveys often becomes outdated very soon but may be critical for a specific decision-making process. On the other hand, there are alw...

INTRODUCTION The development of numerical-spatial routines is frequently required to solve complex community health problems. Community health assessment (CHA) professionals who use information technology need a complete system that is capable of supporting the development of numerical-spatial routines. BACKGROUND Currently, there is no decision support system (DSS) that is effectively able t...

In India, near Chennai, Pammal Panchayat of Tambaram Taluk, there are more than 145 tannery industries functioning since 1945, covering six square kilometre area. To assess the level of chemical contamination of the study area, 3D model Triangulated Irregular Network (TIN) has been generated using GIS software such as Arc Sene, Arc Map. Using the cross validation technique from the software ana...

This paper presents the main findings from a collaborative community/university research project in Canada. The goal of the project was to improve access to community health information, and in so doing, enhance our knowledge of the development of community health information resources and community/university collaboration. The project built on a rich history of community/university collaborat...

It is well known that there is a growing need for consistent and up-to-date GIS-data at various scales. This paper describes a system for semiautomatic quality assessment and update of an existing large scale topographic database. The necessary reference information is derived from current digital aerial orthophotos with a ground sampling distance of 0.1m via automatic image analysis. The advan...