Bus Rapid Transit gives buses dedicated, physically separated lanes, enclosed stations with level boarding and off-board fare collection, so that they perform much like a metro at a fraction of the cost. The first full system was Curitiba's Rede Integrada de Transporte, opened in 1974 under mayor Jaime Lerner, which ran high-capacity buses along radial 'structural axes' that also concentrated dense development. Pre-payment and platform-level boarding cut dwell time and let the buses carry metro-scale passenger volumes.
BRT delivered mass transit quickly and affordably to cities that could not fund underground rail, and tied transport directly to land-use planning. The Curitiba model has been exported worldwide, notably to Bogotá's TransMilenio and dozens of other cities.