The world is rapidly urbanizing. More than 50% of the world’s population already lives in urban areas, a figure that is estimated to rise to 70% by 2050. Some geographical analyses in fact suggest that if we add the official urban figures of peripheral municipalities located in the vicinity of cities, current figures would be already at 70% of the world’s population, implying an estimated 85-90% of the world’s population could be urbanized in the coming years. Planning and managing urbanization is a critical issue for every country and region in the world.