- This article aims to explain the implicit complexity of planning, a notion which has been recently defined in Italy by the expression "governo del territorio". It is divided into three parts. The first describes the evolution of planning in Europe throughout a century of history: from the modernist urbanism to the comprehensive planning, from the decision making evolution up to the recent forms of governance. The second sums up the latest fifty years of planning in Italy, which is undergoing today a complex and innovatory change. The third examines some keywords relating to cities and metropolitan areas. They refer to the recent notion of "governo del territorio", which calls for a redefinition of the relationship between the technical-instrumental dimension of urbanism (design oriented and based on new structural and operational plans) and the socio-political dimension of planning, responsible for the coordination of new urban policies and governance processes.
Keywords: Urbanism, Town planning, Urban and regional planning, Urban governance Parole chiave: Urbanistica, Pianificazione territoriale, Governo del territorio.)" />