E-collaboration between the Private and the Civil Sector: Support of Long-term Utilization and Update of Official 3d City Models

Research on the creation and use of 3D city models has made rapid progress recently. An increasing number of cities and regions now own 3D city models or are planning to use them in the future. Especially planning departments see an enormous potential in the use of 3D city models to visually and algorithmically access environmental and spatial impacts of planning proposals. However, examples for the continuous use in spatial and environmental planning are not documented so far. Within our contribution it is argued that this can especially be attributed to missing concepts for the digital exchange of planning information between the civil sector and the private sector. By conceptualizing digital workflows that enable the utilization of 3D city models and the integration of planning proposals by multiple stakeholders, it will be shown how the collaborative use of official 3D city models can support their regular use as well as their continuous update. References to related research are presented to show that the technology to implement such an e-Collaboration framework is generally available. At the same time our concept also considers national and supranational aims formulated in e-Government programmes to provide governmental services via ICT.