Interazioni tra sviluppo urbanistico e sviluppo del sistema trasporti nelle aree metropolitane lineari: Il caso della città di Palermo

The theoretical concept of "linear city" (ciudad lineal), introduced by Arturo Soria y Mata in 1882, was a revolutionary idea contrasting with the traditional concentric city, dense and congested. In several international and national cities, after a historical radial development, began a linear expansion driven by different factors, i.e. insufficient land availability or absence of an organic city planning and development. In this paper, after a brief introduction and the description of the Palermo case study as a linear city, a focus on the implication of this linear structure on the urban and public transport development is presented. Finally, suggestion of innovative solutions to accommodate this linearity, compared with the existing ones, will be described taking into account the role of Palermo as the most important node of attraction/generation of flows in the Region.