1. A Strategy for the Modern City: Research Lines Aimed at the Identification of ‘Optimal Centrality’. 2. The Degradation of the Urban Environment: the Planological Approach. 3. Centralities and Peripheries: A New Strategy for the Recovery of the Urban Environment. 4. Urban Planning and Ecology: What Relationship? 5. The ‘Urban Mobility Integrated Basin’: A Prerequisite of Rational Planning. 6. The Urban Labour Basin: Misleading Formulations. 7. The Land-use/Resources Matrix: An Instrument for Environmental Planning. 8. Ecological Equilibrium and Territorial Planning: the Italian Case. 9. The ‘Urban Environment Programme’ of the Italian Government Ten Year Plan for the Environment (Decamb).