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The Parisian urban planning workshop on the scale of Paris and Greater Paris documents, deciphers, supports, illuminates, projects, explores and shares diversity.

Major mobility transformations in Grand-Orly Seine Bièvre

Analysis of mobility and public spaces 2012-2031

Over the last fifteen years or so, a number of new public transport lines have opened in the Grand-Orly Seine Bièvre area (tramway T7 and T9, metro line 14). Several others are planned or ongoing (tramway T7 to Juvisy-sur-Orge, metro lignes 15 and 18, Cable C1 and TZen 4 and 5). The arrival of these new stations is accompanied by major transformations of public spaces.
Icône de la catégorie Major mobility transformations in Grand-Orly Seine Bièvre - Analysis of mobility and public spaces 2012-2031
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Chevilly-Larue, May 2025 © Apur

In order to be fully aware of these transformations in supply and demand, Apur has evaluated them via the number of inhabitants and jobs served by public transport and analysed the use of public transport to identify the changes in behaviour underway.

The proportion of the Grand-Orly Seine Bièvre population living in sectors with access to public transport rose from 52% at the end of 2012 to 63% at the beginning of 2025 and should reach 68% by the end of 2031. This spectacular improvement, however, appears merely to be catching up with other areas in the Greater Paris - Grand Paris Metropolis. It is accompanied by an increase in the number of jobs provided with transport services, from 62% at the end of 2012, to 74% by early 2025 and 81% by the end of 2031.

The study also looks at the use of public transport in order to deduce behaviour changes. A survey addressed to passengers leaving the five line 14 stations during rush hour, shows that most respondents (8 out of 10) use the line regularly and that 2 out of 3 were home-workplace journeys. Respondents who already made the same journey before the extension of line 14 were 2 out of 3 interviewees : 85% already travelled by public transport and 7% by car. Carried out at the beginning of 2025, the survey shows the different roles played by the new stations: certain provide local services, others play a connecting role, including with the municipalities of Essonne.

On a local scale, the study looks at four sectors provided with services by the new line 14 stations, and analyses the urban characteristics of neighbourhoods and the urban, transport and public space projects in order to examine the present and future challenges of reaching the station on foot and by bicycle. It particularly highlights the various issues involved when stations are located in already established neighbourhoods or those undergoing transformations and raises questions about the coordination of time frames for urban and mobility projects, particularly in the interim periods of time.

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