Titre : PartiCitaE: history and lessons from a step-by-step experiment Auteurs : Laure Turcati, Marine Legrand, Gilles Plattner, Laurence Eymard, Revue : Technology and Innovation Numéro : Issue 4 Volume : 7 Date : 2022/09/13 DOI : 10.21494/ISTE.OP.2022.0871 ISSN : 2399-8571 Résumé : This article presents the considerations and experiments leading to the launch of PartiCitaE, a participatory observatory on the urban environment. A foreshadowing study, composed of a questionnaire and participatory meetings, was carried out in 2016. It guided us to organize PartiCitaE along three axes: urban atmosphere, living city and living in the city. This inquiry also identified air quality and urban soils as major interests and thus helped us to develop projects on these topics. The success or failure of these projects has fueled reflection on the step-by-step co-construction of projects with city dwellers, making it the hallmark of PartiCitaE. We believe that the way the team positioned itself encouraged the strong and transformative involvement of volunteers, which has resulted in the proposal and implementation of new projects beyond the framework of PartiCitaE. Éditeur : ISTE OpenScience