摘要:This special issue will present some selected contributions resulting from the last international conference organized at the Université Libre de Bruxelles in March 2010 by the working group “Spatial Mobilities and Social Fluidity” of the Association internationale des sociologues de langue française (AISLF). They will focus, from different disciplinary perspectives, on the arduous dimensions of daily mobilities, i.e. on these diverse circumstances in which ordinary people are induced to be mobile and to experience mobility as a complex task. Some aspects to be investigated will be: mobilities of teenagers; the tiring experiences of public transport networks; and the constraining features of sociospatial locations, of institutions (public services, road controls, and prisons) or of particular political contexts.