How do you eliminate traffic jams on the freeway?

To ease traffic congestion, the Federal Council wants to widen the Nyon-Geneva freeway to three lanes. For Alexis Gumy, postdoctoral fellow at the Urban Sociology Laboratory at EPFL, "the risk is great of shifting traffic jams onto the access roads. Should we widen them too? Because the freeway is only one link in the transport system." Instead, the researcher recommends developing carpooling or other car-sharing solutions and the public transport network.