Abstract
Abstract. 3D geo-visualization is more and more used and appreciated to support public participation, and is generally used to present predesigned planned projects. Nevertheless, other participatory processes may benefit from such technology such as the elaboration of urban planning documents. In this article, we present one of the objectives of the PLU++ project: the design of a 3D geo-visualization system that eases the participation concerning local urban plans. Through a pluridisciplinary approach, it aims at covering the different aspects of such a system: the simulation of built configurations to represent regulation information, the efficient stylization of these objects to make people understand their meanings and the interaction between 3D simulation and stylization. The system aims at being adaptive according to the participation context and to the dynamic of the participation. It will offer the possibility to modify simulation results and the rendering styles of the 3D representations to support participation. The proposed 3D rendering styles will be used in a set of practical experiments in order to test and validate some hypothesis from past researches of the project members about 3D simulation, 3D semiotics and knowledge about uses.
Highlights
In order to support public participation, 3D City Models are used and abused to visualize urban projects. 3D geo-visualizations are mostly resorted to to help stakeholders understand the evolution of urbanized areas
Territorial evolution is not limited to planned changes supervised by public authorities, and integrates private-planned changes that are regulated through urban planning documents
We present a state of the art about the issues raised by the different components of such system, we introduce our methodology to mix visualization and simulation aspects to improve the understanding of Local Urban Plans (LUPs) and we describe a concept of implementation of the system
Summary
In order to support public participation, 3D City Models are used and abused to visualize urban projects. 3D geo-visualizations are mostly resorted to to help stakeholders understand the evolution of urbanized areas. In order to fulfil urban planners requirements, a participation support system needs to be graphically versatile, so as to offer various and advanced styles for 3D representation, so that the various graphical styles that are currently used by practitioners and produced through computer graphics techniques, can be transposed into digital tools that can make the most of existing 3D city models This requires to define a limited set of useful.
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