Oslo, Friday, December 17, 2010

Blom has produced a countrywide 3D building model that covers all buildings in Denmark. The 3D model can be used for spatial planning of Danish cities and the landscape, and also for solutions in the private sector. Real Estate, Internet portals and navigation are obvious application areas. 

The content and the scope of the project - all of Denmark in 3D - is unique because it includes all buildings in Denmark; not only part of city areas, but also buildings in the country side. The number of buildings exceeds 2.2 million. 

The product
The 3D building model is a visual product forming a generalized three-dimensional representation of the buildings in Denmark. The roof shapes display the best possible representation of each building's actual form based on the input data. By adding roof shapes the 3D model is much more realistic than a simple block model with flat roofs. The 3D building model can be further enhanced by adding color, textures or mounting Blom’s oblique imagery on the facades. 

The digital 3D building model is the result of many months of development and utilization of information from Blom’s digital elevation model (DEM) and orthophotos. Furthermore, building footprints from a vector map have been used. The 3D building model is produced in a fully automated process. 

3D models and urban planning 
Among other the 3D building model is used for urban and landscape planning. Projects or project ideas like construction of new buildings, larger construction areas, redevelopments, wind mills or a highway designs can be incorporated into the digital model. Hereby the 3D model supports discussions and assessments of plans and projects, because the entire urban environment will be a scene for simulations and the areas are easily recognizable in the virtual model. 

In this context many municipalities wish to work with 3D modeling in the spatial planning processes, both in the initial concept development phases and in connection with more complicated visualization tasks. The simple sketching is quite easy to get started with, while the more complex 3D modeling and visualizations require advanced software and training. 

Flemming Nielsen, Head of The Planning Department explains; “Hørsholm Municipality is continuously working for maintaining and developing the City Centre as an attractive and vibrant place for locals and visitors. As part of the dialogue with city residents a '3D Journey in tomorrow's city center’ has been produced. Blom has developed the detailed 3D model that includes both existing conditions such as planned expansions in the City Centre based on concrete projects from architects and volumes which are not yet detailed proposals for the design of future buildings”. The 3D building model is also ideal for modeling and visualization of flood scenarios. “Working with high resolution 3D digital terrain data is essential for our modeling of flooding in cities. We use the 3D data both for analyses of cities having flood problems today and for analyses of the potential impact climate change on urban flooding.” says Ole Mark, Head of Research and Development at DHI. 

Web development by Imaginanet