Bergkamen public utilities (GSW) have merged the geo information and attribute data of their purchased gas supply network in the SICAD-UT network information system. SICAD GEOMATICS provided extensive services as part of this migration project. Now all the gas network data is in the form of linked objects in the intelligent data model of SICAD-UT and is available to all users in GSW Kamen for their specific tasks.
In 1999, GSW Kamen incorporated the gas networks of the communities of Bergkamen and Bönen, formerly operated by a cross-regional supply utility, into its own supply network. The previous owner used the GRADIS application from Strässle to record the line data. The basic problem with using this data was its quality. The original graphics data for the network was in DXF format. The opinion of the project group assembled from employees of GSW and SICAD was that “as far as linking the data with attribute information and integrating it in a data model suitable for network management, DXF data is a ´low-intelligence´ format.” A further problem was that the attribute data for house connections, among other things, was kept in completely separate Excel spreadsheets on separate PCs. “Because of these defects, local agents had to make the links between these two sets of data in their heads. They simply had to know in advance where everything was”, said a spokesman at GSW, criticizing the former concept.
Right at the start it became clear that it would not make commercial sense to record all the line data for the gas network again from scratch – this time in intelligent format. In order to obtain high-quality data at the lowest possible cost, the different output data was to be raised to the standard of the SICAD-UT data model in the course of a migration project. GSW Kamen decided to put this migration project in the hands of SICAD GEOMATICS. The start of the project was scheduled for September 2001. Just three months later the GIS provider successfully completed the project with the handover of the entire data set.
The migration process has raised the quality of the graphics and attribute data, made it homogeneous and brought it together on the uniform SICAD-UT platform. Once the DXF data had been converted to SQD format, SICAD-UT-DATALIFT was used. The core function of this application is to create the objects in the SICAD-UT data model and establish the topological links between the elements. All the data for the gas pipeline network is now available in a cross-sector network information system. Thanks to the SICAD-UT-WEB information system, which is based on the SICAD Internet Map Service, the network information is available to all users in the company to help them carry out their specific tasks. Today, users in GSW benefit from high-speed aggregated access to linked network information. Knowledge of the networks now no longer resides in the heads of individuals.