First Zone: consists of other municipalities (outside Barcelona) in an official union of adjacent cities and municipalities called the Àrea Metropolitana de Barcelona (AMB) (also Greater Barcelona) with a population of 3,220,071 in area of 636 km² (density 5,010 hab/km²).

Second Zone: considered as urban and metropolitan adjacent area.
 It forms a belt of cities: Vilanova i la Geltrú, Vilafranca del Penedès, Martorell, Terrassa, Sabadell, Granollers, Mataró and their respective areas of influence.
The Generalitat projects the interconnection by means the Orbital Railway Line.

Third Zone: considered territory of consolidated expansion.
In this one the expansion passes to be of radial type, spreading across fluvial corridors or depressions, as in case of Manresa, Igualada and Vic, or continuing the coast, as in case of Blanes and El Vendrell.
First Zone: consists of other municipalities (outside Barcelona) in an official union of adjacent cities and municipalities called the Àrea Metropolitana de Barcelona (AMB) (also Greater Barcelona) with a population of 3,220,071 in area of 636 km² (density 5,010 hab/km²).
Second Zone: considered as urban and metropolitan adjacent area.  It forms a belt of cities: Vilanova i la Geltrú, Vilafranca del Penedès, Martorell, Terrassa, Sabadell, Granollers, Mataró and their respective areas of influence. The Generalitat projects the interconnection by means the Orbital Railway Line.
Third Zone: considered territory of consolidated expansion. In this one the expansion passes to be of radial type, spreading across fluvial corridors or depressions, as in case of Manresa, Igualada and Vic, or continuing the coast, as in case of Blanes and El Vendrell.
Barcelona metropolitan area