LINE 14 OF GRAND PARIS EXPRESS
Stations are a major issue for the city of tomorrow. Beyond their function of gateway to the new transport network of the metropolis, the future stations will contribute to the development of the served by becoming emblematic places of Grand Paris. The construction of the extension of line 14 to the south and the Chevilly Trois Communes station will bring the three municipalities Hay-les-Roses, Chevilly-Larue and Villejuif closer to Paris. The Chevilly Trois Communes station is defined according to the intentions of the Société du Grand Paris as a "new central station"; its predictable impact on its environment amply justifies this name. Indeed, the connection with Paris intramuros will be without correspondence and will be five times faster than today.
Furthermore, this station is part of the territorial development contract "Campus Sciences and Health" of the Vallée de la Bièvre - concerted planning tool and signed in 2013 - including the agglomerations of L'Hay-Les-Roses and Villejuif. It is also part of the Urban Renewal Operation (ORU), in north neighborhoods of the station. These operations are aimed at opening up suburbs, renovating and diversifying housing by improving equipment and public spaces. The estimate of 40,000 travelers per day reflects the potential for expansion of the three municipalities.
The new Chevilly Trois Communes station is located on a parcel on the edge of the communes of L'Hay-Les-Roses and Chevilly-Larue; about 500 meters south of the town of Villejuif. This establishment creates a balanced relationship between each municipality. It will be central to the entire area: it will connect very different urban areas and increase the attractiveness of the neighborhoods. The proposed location will have the impact of requalifying public spaces by creating a connection between the center of the Allee de la Plaine district (on Bicêtre Street) and the forecourt (in front of Jean Moulin College, rue Paul Hochart). The pre-study conducted shows that the station is designed as an independent building on an island, with good visibility from all sides, however the access was organized unilaterally and penalizes its accessibility. The intermodality elements are around the entrance to the station. We propose a more concentrated group of these - in connection with the study of public spaces around the station - and the redefinition of a landscape setting.
In terms of passenger flows, we appreciate the current balanced configuration of the stairs on the platforms, which makes it possible to avoid dead zones at the ends, the separation of incoming and outgoing flows and the central position of the lifts. However, mid-level passenger areas (between the platforms and the road level) are too large at the surface, and the fixed stairs at the ends of the corridors are not suitable for use by entrants. In order to manage the large temporal and physical scales of this project as well as the multitude of decisions to be made and of speakers, we propose to spread the project on two levels: urban level - the forecourt around the station; architectural level - the declination of the valorization project in different stages.