Riga:
Riga Municipality maintains a large scale (1:500) topographic information database, which includes information on underground infrastructure, i.e., power grid, sewerage, rainwater drainage system, gas pipelines etc. The data is maintained in vector data formats consisting of 600+ data levels/objects and split in 1000+ and more maps/planchets. To maintain and update data a proprietary software is used. In order to promote data exchange with other potential data users, it is important to ensure data exchange and compatibility with other data systems/ data users and the possibility to add additional data to the municipal database. Existing data structure and software does not allow to execute data exchange and updates effectively as data transformation processes must be involved. However, this data is very valuable, it is hardly used in building and urban modeling as 3D models.
The challenge is to find a solution how to transform historical large scale topographic data from proprietary data formats to database formats, to ensure the regular update of the data set in the most effective way and – finally – to identify further process and next steps to the 3D underground model that can be matched with the 3D surface model.
Tallinn:
The challenge our city faces is understanding and managing its underground urban infrastructure. This includes utility networks (like water and electricity), tree roots, and traffic tunnels. These underground elements are crucial for the city’s functioning, but they are often hidden and difficult to visualize.
