From the Spatial Sustain blog : "One of the more interesting presentations that I saw at GeoWeb was about the creation of a 3D City Model for Public Participation. The presentation by Jürgen Bogdahn of the University of Applied Science in Stuttgart detailed a planning prototype that combined 2D and 3D visualization with comments linked to the map. The case study involved noise simulation maps, a European Union mandated analysis effort, with simulation for time of day. The interface presented some potential development plans, and citizens could comment specifically on the map representation and presentation, pinpointing location and allowing search on comments via the map view. The system is called the Virtual Environment Planning system, and was designed to integrate environmental simulation for noise and flooding impacts to give residents a better knowledge of the environmental impacts. The system also gives residents a better understanding of alternate planning proposals and empowers them to provide input the outcome."
Read more of this story at Slashgeo.