Enhancement of Decision Support Process in Road Administration Domain with the Use of GIS Technology
نویسندگان
چکیده
This article describes a component named GeoPIS. With this component it is possible to visualise geographic and attributive data from Road database (BCP) which is used by Slovenian road administration. The component is an upgrade of their business information system, which includes BCP. by adding geographic dimension. Geographical data can significantly improve understanding of road attributive data and information searching. The component can also be used iii other information systems that use BCP. Geography is essential attribute of a road. In business information system. data about current state of road sections, events and planned activities are connected to road network through unique road section ID and offset. From this data several reports about state of the road sections can be generated \vith standard SQ12. As an example, you can get report about C~Iaccidents on selected road sections or report u ith index of road surface state on selected road sections. Such reports are a base fol road section’s reconstruction planning process. Ilowever. tabular data are some times hard to follow. If we want to check correlation bet\\een road surface state index and car accidents on a road section. this is not eas)’ to figure out f rom tabu lar data . (ieographic information significantly increases the value of attribute data. When same example is diapla! cd on a map. correlation is immediately evident. l‘hcI-efore. in road administt-ation department has been using pmllcl GIS s> stem. Custom maps have been prepared OH demand. Nevertheless. this solution has several deliciencies. ‘To name just two of them, as a rule decisioll-mal,ers do not use sophisticated GIS tools and data stored in business database and spatial database are not connected. Every time when map is to be rendered, it is necessary to import current data. Therefore, we decided to implement a component. which will enable decision-makers to work with geographic data fi-om environments they arc familiar \\,ith and which will connect spatial and business clntabasc. GeoPlS is an ActiveX component and can easily be used in any program environment that supports this standard. For example. it is possible TV il~cIu(i., (ieoPIS into MS Access database or MS Word document or MS Excel spreadsheet. Also. you can i ncorpora te the component into Visual Basic application. Application
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