Background
The Barcelona Metropolitan Region (RMB), a region with an area of 3200 Km² and accounting for 70 percent of the population of Catalunya (4,200,000 inhabitants) and producing 72 percent of its GDP, has gone from 20,000 hectares of urban development in 1973, to 46,000 hectares in 1992 in a context in which the Catalan population grew by 16.7 per ...