Two years after the establishment of Brisa, the right wing dictatorship was overthrown by a leftist revolution. The new regime included Brisa in a program of nationalization, first taking control of 40 percent of the company and eventually gaining a 90 percent share. Road construction continued stretch by stretch under socialist control. As the first highway sections were completed on the A1 and A2, the government concession was expanded to include adjoining stretches. In addition, concessions were granted for expansions to the network: the A3 would extend the north–south highway from Porto up to the Spanish border, the A4 would reach east from Porto to the city of Amarante, and the A5 was to reach from Lisbon about west to the coast. However, during the first years of democratic government, the combined length of the network never exceeded through the 1980s. Transportation was seen as a priority in the 1990s, pushed by the growing use of automobiles and mass consumption.