In Medellin, Colombia, as in several cities in Latin America and other developing countries, a driving restriction policy according to the license plate number has been applied as a strategy to reduce congestion and other externalities associated with car use. Despite the apparent initial success of the policy, locally called pico y placa, the problems of congestion and pollution have re-emerged over time. In response, local authorities are considering removing this driving restriction and replacing it with a congestion charge policy, also known as road pricing.
