OuiHop’, WayzUp, Karos, Koolicar, Sharette, Ecov, etc. Behind these more or less well-known names lie a host 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 for professional car-sharing (Communauto, Autolib’, etc.) and car-pooling (La Roue Verte, Covivo, etc.) supported by public authorities. 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.


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 98% 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.

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