Vers une plateforme cartographique web 2D/3D - dynamique pour la participation citoyenne

Authors: Lafrance, Frederick
Advisor: Daniel, SylvieMellouli, Sehl; Dragicevic, Suzana
Abstract: Web virtual globes can facilitate communication between urban planners and citizens. Recent studies have shown that 3D rather than 2D representations can be more effective in communicating information. However, such visualization presents several challenges, including the level of detail, realism and abstraction. Citizens' understanding of the impact of the choices they make during urban planning consultations could be improved by exploiting spatiotemporal simulations. Yet, 4D (3D + time) has rarely been integrated to citizen participation platforms. Therefore, the main objective of this research was to develop a web mapping platform combining multidimensional visualizations (2D, 3D, 4D) in an efficient and intuitive way, so that citizens can better assess and understand the issues of the consultation at stake. To achieve this objective, representation guidelines adapted to citizen consultation as well as spatiotemporal simulations were designed. These concepts were then integrated into a 4D web mapping platform featuring the virtual globe Cesium. User testing was done with 21 experienced participants who used a questionnaire integrated into the platform to validate the concepts. The questionnaire contained 5 simulated realistic case scenarios of citizen participation, in which the participants assessed the intuitiveness of the chosen representations as well as the concepts related to this research. Results showed that spatial information shared within citizen consultations can be intuitively represented through a combination of 2D, 3D and 4D dimensions. Moreover, this combination also offers a better understanding of the impacts related to choices made during the consultation. We consider that the platform proposed in this project is a first step toward a more complete tool dedicated to citizen participation. Future works will aim to use the platform in a real context of citizen consultation.
Document Type: Mémoire de maîtrise
Issue Date: 2018
Open Access Date: 12 January 2019
Grantor: Université Laval
Collection:Thèses et mémoires

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