The daily movements and separation of the social classes living in the Île-de-France region

Researchers carried out a survey of the movements of 25,500 inhabitants of the Île-de-France region and showed that social segregation in the area was less obvious in the daytime than at night. The upper classes are the most segregated, followed by the working classes. Certain neighbourhoods become more mixed during the day while suburban working-class areas are getting poorer.