Lisbon metropolitan area
The Lisbon metropolitan area, centered in the Portuguese capital city of Lisbon, is the largest population concentration in Portugal. The population in 2011 was 2,821,876, of whom 547,733 (19.4%) live in the city of Lisbon. About 26.7% of the total population of Portugal lives in the Lisbon metropolitan area. The area of the Lisbon metropolitan area is 3,015.24 km, which is 3.3% of the total area of Portugal.
A2 motorway (Portugal)
The A2 () is a major motorway (freeway) in Portugal. It connects 25 de Abril Bridge (Lisbon, the capital of Portugal), to Albufeira in the Algarve, the country's southern-most mainland province. The first section of the A2 was opened in 1966 and the last one was completed in 2002. It extends for fractionally more than 240 km (149 miles). The A2 is operated by Brisa - Auto-estradas de Portugal.