Inspired by the bus lanes implemented in Curitiba in the 1970s, other cities in Latin America have built BRTs (Bus Rapid Transit), including Bogotá, Mexico City and Santiago. Bogotá’s TransMilenio has become a global reference point. It demonstrates that high-volume transport infrastructure need not be expensive or time-consuming to build and that a bus system can be as high-quality as a subway.
TransMilenio passengers pay at stations before boarding articulated high-quality vehicles, the largest of which is 27 ft wide, has seven gates and capacity for 260 people. While buses must still adhere to traffic lights and pedestrian crossings, the BRT operates in dedicated lanes in the centre of the major wide arterial roads of Bogotá, segregated from the rest of the traffic. Two dedicated lanes on major truck routes create an express service.
The project was part of a new concept for Bogotá that promotes bicycle schemes, pedestrian and public space improvements and restrictions on personal vehicles. The first phase was implemented in just three years (1999-2002) at a cost of around US$10m per km, one-tenth of the estimated cost of a subway line at that time.
TransMilenio demonstrates that a bus system can accommodate extremely high volumes of passengers (up to 40,000 per hour), while providing fast trips in a large metropolitan region. Average speed in the 84 km-long bus system was 27 kph in July 2011. São Paulo’s buses in exclusive lanes average a mere 15 kph.
Implementation has not been seamless. Problems have included overcrowding and delays in the network's expansion. Nevertheless, research conducted in May 2011 showed that 75-80% of users are satisfied with the TransMilenio stations and buses.