• Damien Demailly Damien Demailly est diplômé de l’École Polytechnique et docteur en économie. Après une thèse sur l’impact des politiques climatiques  …
  • Laura Brimont Laura Brimont a rejoint l'Iddri en mai 2015 en tant que chercheure au sein du programme Nouvelle Prospérité  …

> Etude et synthèse


Collaborative mobility: from promises to challenges for public authorities

2015 à 2016


OuiHop’, WayzUp, Karos, Koolicar, Sharette, Ecov, etc. Behind these different names, some meaningful, some less so, lie a multitude of start-ups that are attempting to develop carpooling and carsharing.

These new “collaborative mobility” operators are reviving shared car uses, which emerged in the 2000s with the first generation of operators supported by the public authorities: professional carsharing (Communauto, Autolib’, etc.) and carpooling (La Roue Verte, Covivo, etc.). Thanks in particular to digital innovations, these new operators are hoping to gain new converts to carpooling and carsharing practices and to increase their coverage.


Research objectives

Against this backdrop, the collaborative mobility project examines three research questions:

  1. How does the shared use of cars contribute to more sustainable mobility, whether in terms of reducing congestion and greenhouse gas emissions, or improving access to mobility?
  2. What are the development challenges for these new operators in terms of short journeys, which account for 90% of our journeys and 70% of greenhouse gas emissions, especially in places where there are few alternatives to cars (small towns, suburbs, rural areas)?
  3. How can the public authorities and in particular the local authorities take advantage of the innovations developed by these new operators for their public mobility policies?

This analysis is based on a review of the academic and institutional literature on the impacts of carpooling and carsharing, and around 50 interviews conducted with experts and operators in this field: municipalities, traditional mobility operators and new collaborative mobility operators.

Actors and finance

The collaborative mobility project was conducted by IDDRI in partnership with Transdev, MAIF, Renault, the Ile-de-France Region, ADEME and Ouishare. It received financial support from Transdev, Renault and MAIF, as well as from the French government within the framework of the “Investissements d’avenir” programme managed by the Agence Nationale de la Recherche (ANR - French national research agency) under the reference ANR-10-LABX-01.





- 23 June 2016, Paris - International Conference
Sustainable Development 2.0 - Can digital technologies fuel the ecological transition?

- 8 March 2016, Paris - Workshop
The role of the public authorities faced with the emergence of new collaborative mobility operators