Changes in daily mobility have increased the phenomenon of displacement chaining. According to the logic of saving time and money, without chaining several trips back home involves a redefinition of the global parameters of modal choice. For this type of practice, the car seems much more appropriate. More flexible, it is still preferred by residents of suburban and rural areas who come in large cities mode. This reorganization of daily practices to conflict two aspects to the extent the car is both the unchanging symbol of individualization but also the non-sustainability of mobility. The era of all-auto seems to take a turning point, it is necessary on the part of public policy to provide users with viable alternatives. This offer will be both powerful and flexible enough to encourage people to rationalize the use of their personal vehicle.