Recent periurban growth in the Ile-de-France: Forms and causes Population,2, Baccaini Brigitte. After highlighting the specific situation of suburban development in the Ile de France, which has served as a point of transition between urban areas and the countryside, and the special features of the population who lived there in over-representation of families with children and underprivileged social groups with housing primarily belonging to owner- occupiers this paper deals with recent migration of the suburban population in order to explain the causes and types of demographic growth in this type of environment.
Decongestion of the Paris urban area is responsible for nearly three quarters of new suburban dwellers, and involves populations with very different socio-demographic characteristics from those who had migrated from the provinces and those who had lived in the He de France for a longer period of time. The occupational distribution of recent in-migrants to the suburbs also varied significantly in different geographical areas and selection effects have reinforced the existing specificity of various sectors.
The economically active population in the Ile-de-France is characterized by relatively high levels of residential mobility. A large majority These movements are responsible for a gradual redistribution of population within the Ile-de-France, with the trend being towards a spatial de-.
Population: An English Selection, 10 2 , , But despite this "relative - and selective - slowing down of the shift to the periphery" Berger, , the movement of 'periurbanization' or population decentralization has nonetheless continued and involves zones that are ever more distant from the capital. The periurbanization process affects different groups in the population to different degrees and in different ways.
The residential choices of individuals and households vary considerably depending on life-cycle stage, family situation, social position and financial resources. In addition, these selection effects tend to operate in different ways in different geographical sectors of the region, leading to a reinforcement or weakening of socio-spatial contrasts. The socio-spatial organization of the Ile-de-France has been the object of many descriptions, but these often present methodological shortcomings Berger, In addition, most of these studies deal only with the Paris urban area, so the processes responsible for residential segregation of socio- demographic categories in the periurban zone are less well known.
