Advanced Traveler Information Systems (ATIS) require e cient information retrieval and updating in a dynamic environment at di erent geographical scales. ATIS applications are useful in yielding a better utilization of the limited costly transportation arteries and providing value-added traveler information. Many ATIS applications are built on the functionalities provided by Geographical Inform...

Water resources projects are inherited with overlapping and at times conflicting objectives. These projects are often of varied sizes ranging from major projects with command areas of millions of hectares to very small projects implemented at the local level. Thus, in all these projects there is seldom proper coordination which is essential for ensuring collective sustainability. Integrated wat...

A geographical information system (GIS) is a framework capable to assemble, keep, process and display specific information, identified by geographical location, which can combines layers of information to give the user a better understanding about that location. Intelligent agents prove to be a useful tool for data mining in geographical distributed knowledge bases. In this paper we present a m...

An integrated Expert Geographical Information System (EXGIS) is presented and applied for the evaluation of the suitability of soil and climatic conditions of in area of southern Greece, for five crops. EXGIS is an integration of an Expert System shell, designed for the manipulation of knowledge concerning soil suitability for agricultural uses, with the commercial GIS package PC ARC/INFO. The ...

The Web has become a new medium which can display geographical information in rich forms and offer user-friendly interfaces. One of the promising trends in current Geographical Information System (GIS) is the use of Web 3D technology, especially VRML (Virtual Reality Modeling language). As one of the most fundamental geographical information, terrain information is often presented as the base f...

There are significant issues and problems in the integration of remotely sensed data and GIS due to the differences in data characterisation, data structure and data processing philosophy between the two technologies. Difficulties exist particularly in handling large data volumes in GIS which are unavoidable when using remotely sensed imagery. This paper focuses on the integration of image data...