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Preliminary consultation is open
Published on
Take part in the preliminary consultation from 5 October to 11 December 2026
A time of dialogue to guide the decision on the continuation of the project
The consultation takes place at a time when the project can still evolve. It provides an opportunity to discuss the appropriateness of the project, its objectives and characteristics, socio-economic and environmental issues, land use planning, accessibility, alternatives to the project – including the absence of a project – and the proposed variants. Residents, users, associations, economic actors and elected officials are invited to get informed, to exchange and to express their opinions and make proposals.
The contributions or arguments collected will help to decide on the continuation of the project and, if it is continued, to make it evolve as closely as possible to the needs.
En cadré par des garantes indépendantes
This time of dialogue is held under the aegis of the National Commission for Public Debate (CNDP). Three guarantors appointed by the CNDP — Nathalie Durand, Marie-Liane Schützler and Caroline Werkoff — ensure the completeness of the information and the quality of the participation.
Neutral and independent, they do not express an opinion on the substance of the project. At the end of the consultation, they will publish an independent report, which presents the arguments of the public (questions, observations and proposals). Île-de-France Mobilités will respond within two months with the lessons it learns from the consultation and the follow-up given to the project.
To contact the guarantors: [email protected]
Learn more about the project
The consultation file
Summary of the consultation file
How to participate remotely?
- Via the online form below
- With the pre-paid T card distributed with the leaflet (paper format) to allow each person to send their notice free of charge by La Poste.
- By submitting a stakeholder notebook for companies, local authorities and associations, the model of which can be downloaded from the media library.
- Self-supported debates for all in the planned framework: this kit is also available in the media library.