The recent increase of gazoline price has relaunched the debates on the vulnerability of the households in situation of automobile dependency. This paper develops a methodology to calculate the portion of household income spent on daily mobility, from which a threshold of vulnerability is...

<italic>L’évolution des prix des carburants ces dernières années a relancé les débats sur la vulnérabilité des ménages en situation de dépendance automobile. Le travail présenté ici développe une méthodologie pour calculer le taux d’effort budgétaire des ménages pour leur mobilité...</italic>

Improvements of transport systems in big conurbation (higher speed and lower cost of individual mobility) have contributed to the reduction of urban areas density and have led to dominant use of the car and a dramatic reduction in walking and cycling, while the use of public transport has...