Judicial green light for the construction of metro station 17 at Triangle de Gonesse in Val-d'Oise

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As part of the works necessary “for the construction of the automatic metro section (…) of the Grand Paris Expressintended to connect Le Bourget to Mesnil-Amelot, called line 17 North”, the State had issued, in September 2018, a permit to build to build a railway station in Gonesse (Val-d'Oise) for the Société des Grands Projets (formerly Société du Grand Paris).

Metro line 17

As a reminder, this project must serve Le Bourget, Dugny, Aulnay-sous-BoisVillepinte, Tremblay-en-France and Le Blanc-Mesnil (Seine-Saint-Denis), Le Mesnil-Amelot (Seine-et-Marne) and finally Bonneuil-en-France and Gonesse in the Val-d'Oise.

Ces works were “declared urgent and of public utility” by a decree signed in February 2017.

The Collective for the Triangle de Gonesse, Val-d'Oise environmentFrance Nature Environnement Île-de-France, Friends of the Earth, Land, no hypermarkets!, Friends of the Peasant Confederation, the National Movement for the Fight for the Environment (Mnle), the Network of Associations for the Maintenance of Peasant Agriculture in Île-de-France and Environnement 93 then contacted the administrative court of Cergy Pontoise to request the annulment of this order, a request which had been rejected in March 2022.

The ten associations and collectives therefore seized the administrative court of appeal of Versailles to contest this judgment.

They demanded 5 000 € each to cover their legal costs.

This building permit “should have been preceded by an evaluation environmental and public consultation,” they repeated.

But, in a judgment dated September 30, 2024 which has just been made public, the court recalls that “the project (…) was the subject of a assessment environmental within the framework of the declaration of public utility of the Triangle de Gonesse development project”, the Concerted Development Zone (Zac) in which the infrastructure must be built.

However, the law does not provide for an obligation to organize a new evaluation insofar as “the floor area authorized by the permit to build is 6,855.63 m² » and that the “trigger thresholds” of these impact studies are “respectively 10,000 m² and 40,000 m² of floor area”.

“The land (…) is located within the perimeter of Triangle of Gonessedelimited by the axes of the Rd317 and the A1 motorway, also concern the Versailles judges.

“It is located on both sides of the Parisis intercommunal boulevard. »

The ground plan produced by the Major Projects Company also allows you to see the “vast agricultural plains which surround the land” and the “built-up areas (…) far away” from the activity zones on the outskirts of the city center of Gonessethe former site of the Psa automobile factory and the Paris Nord 2 commercial zone.

No interest

The base area [du projet, ndlr] takes place in a flat environment, without vegetation, made up of agricultural plots. It presents no particular landscape quality, no interest or character. If the station project is of a certain scale and will have an impact on this landscape devoid of construction, its height remains modest and it is intended to integrate a future district within a Zac.

“Finally, if the associations indicate that the implementation of the gare [permise par la mise en compatibilité du Plan local d’urbanisme] affects the protection of natural environments and landscapes, the preservation air quality, natural resources, biodiversity and ecosystems, they do not establish it,” considers the administrative court of appeal.

The future station should also make it possible to connect the city to the transport network. public transport while “the municipality (…) is not served by any network rail or surface network”.

“In this regard, the development of an alternative public transport offer to individual vehicles is likely to have a positive impact on air quality,” the judges said.

The disadvantages of locating the Gonesse station within an agricultural area are not likely to cause it to lose its public utility character. If the establishment of this station is intended to support, in the long term, the urbanization of a larger area on land (…) in an agricultural zone, (…) line 17 North will support the development (…) of the Triangle de Gonesse by extending activities developed around Roissy airport.

“It is intended to improve the attractiveness of disadvantaged territories and facilitate access to employment for the population of territories in which the unemployment rate is higher than the national average. »

M.J. (PressPepper)

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