Linea 3 y Linea 6; LatAm cities increasingly turning to metro systems

Metro systems are riding a wave of popularity in Latin America, where governments see them as viable solutions to mitigate traffic congestion and strengthen mass transit, according to the BNamericas Intelligence Series report Going Underground: Are Metros the Answer to Latin America's Urban Transport Needs?

Latin American countries are on track to invest around US$40bn in 20 metro construction or expansion projects by 2025, said the report, citing figures from the IDB.
Some of the highlighted projects are the US$7.5bn Bogotá metro; Lima's lines No. 3 and 6 (around US$5.5bn each), Panama City's line No. 3 (US$2.8bn) and the second stage of the Quito metro (US$1.5bn).

Meanwhile, Santiago, São Paulo and Buenos Aires are also expanding their subway systems.
The challenges faced by the cities include high operation and construction costs – which can reach US$70mn-100mn/km – and has led some governments to turn to public-private partnerships.
Experts says that metro systems are not a cure-all, but rather serve to complement existing mass transport systems, which can include bus rapid transport, managed by one authority and with an integrated collection system.

http://www.bnamericas.com/news/infrastructure/latam-cities-increasingly-turning-to-metro-systems1