Dans le métro

Société des grands projets, accelerating mobility

Drawing on its expertise as programme manager for the Grand Paris Express, Société des grands projets also provides support for local authorities to introduce metropolitan regional express services (SERM).

Everyday transport – a key issue for cities and local residents

As they aim to decarbonise travel, reduce geographical and social inequalities and support local development, transport projects are much more than technical projects. They are catalysts for progress in making regions more inclusive, more ecological and more respectful of resources.

It is to fulfil this promise that Société des grands projets is building the Grand Paris Express and supporting local players seeking to design and introduce new mobility services. These major projects to decarbonise transport ensure that ecological planning is rolled out on a regional scale. They all provide useful solutions to simplify people's daily journeys.

Owner of the Grand Paris Express project

With nearly 1,000 employees, Société des grands projets is one of France's major project owners. It was created in June 2010, originally under the name Société du Grand Paris, to manage the creation of the Grand Paris Express.

Its key missions are:
- To design the Grand Paris Express.
- To oversee delivery of the project: building the lines, structures, stations and facilities, acquiring rolling stock on behalf of Île-de-France Mobilités, creating interconnections with the existing network in coordination with SNCF Réseau and RATP.
- To support the transformation of the metropolitan area through the urban development and property projects around the new stations.

 journée portes ouvertes des chantiers 2022

Recognised experience in managing complex projects

Société des grands projets is acclaimed for its ability to deploy and coordinate the necessary expertise, and unite the engineering and construction sectors around the project. It is convinced of the need to bring all the stakeholders together under an approach focusing on co-construction in order to successfully bring complex projects to fruition. It is this perspective that enables it to address all aspects of urban and mobility issues.

Supporting local authorities with their SERM projects

The law on metropolitan regional express services (SERM) of 18 December 2023 has granted the Société des grands projets extended powers nationwide. It can now take part in the development of SERM projects at the request of local authorities and the bodies responsible for organising transport.

The law also allows it to be designated by the State or local authorities as the programme manager for the transport infrastructure needed for implementation of SERM projects.

Appointed by the Minister for Transport
- For new infrastructure on the national rail network and new multimodal interchanges and passenger stations.
- For railway lines or sections of line with little or no use for five years.

Appointed by local authorities
- For projects to create or extend public transport infrastructure with at least one connection to the metropolitan regional express service network concerned.
- For railway lines of which ownership or management has been transferred to local authorities.
- For new maintenance workshops.

Société des grands projets can also play a role in the overall coordination of the construction of SERM infrastructure, whether or not it is the programme manager.

 

Société des grand projects Management Board

The Management Board comprises three members who exercise their functions on a collegiate basis: Jean-François Monteils, Chairman, since 17 March 2021; Bernard Cathelain, since 25 March 2015, and Frédéric Brédillot, since 20 April 2017. 

Le directoire de la Société des grands projets

Dialogue at the core of governance

Dialogue and consultation are essential to the successful outcome of any major transport and development project.

For the Grand Paris Express, we involve all the players at every stage in the design and construction of the new metro: the French government, local authorities, the Greater Paris metropolitan area, regional transport players (Île-de-France Mobilités, RATP, SNCF), trade associations and, of course, local residents.

Elected representatives play a key role in the governance of the Société des grands projets.

The Supervisory Board

Comprised of 21 representatives from the French government and regional communities, the Supervisory Board ensures oversight for Société des grands projets. It approves the agency's policy guidelines and audits its financial statements, as well as development and construction operations.


The Audit and Commitments Committee (ACC) informs the Supervisory Board about Société des grands projets's policies on investment, audits, internal controls, and risk management, as well as provides insight on the opinions and comments issued by the Board. It also manages budgeting, finance and accounting.

The Scientific Council of Economists

The Scientific Council of Economists is composed of economists reputed for their research in geographical economics, and the economic and societal impacts of major transport infrastructure projects.