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Liege, a French-speaking city located in Belgium, has some 200,000 inhabitants. His urban area of about 700,000 people makes it the third Belgian agglomeration after Brussels and Antwerp. Information managed by the Urban Department encompassed almost all the areas of responsibility of the City of Liege. From there came the idea of creating a Cartography Cell to unite the mapping data into a Geographic Information System (GIS). Its main objective was to coordinate data production for the Urban Department, to bring expertise and experience to other departments and to coordinate the information collected and managed into an information system.


City of Liege selected different solutions of the 1Spatial Group. The Urban Department is equipped with the office component (on a PostGIS database), but also with a Web application to manage the City mapping portal. This portal includes the databases managed by the City of Liege (surveys of mailing addresses and shops, mobility, statements related to the buildings’ safety and salubrity, town planning permits…), the Cadastral database (maps and matrices) managed by the Federal Public Service and integrated into the City GIS, and various bases managed either by the Public Service of Wallonia (sector map, ground occupation…) or by other public companies (for instance, TEC, a transport company) and integrated into the City GIS.


The City of Liege GIS is really successful. It is available, via the Intranet, for City’s agents: the map portal is used as a digital atlas consulted daily by officers to perform their tasks.

Case Study

City of Liege

The City of Liege is currently using several separate data production servers. Data from these servers are published to a distribution server: the mapping portal that allows City employees and officers to have direct access to data relating to the different services.

City of Liege


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