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In page Rio de Janeiro:

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In Rio de Janeiro, buses are the main form of public transportation. There are nearly 440 municipal bus lines serving over four million passengers every day, in addition to intercity lines. Although cheap and frequent[citation needed], Rio's transportation policy has been moving towards trains and subway in order to reduce surface congestion and increase carrier capacity. Rio's public transportation service has been a target of many critics and the motive of the 2013 protests and manifestations. According to the people, the raise in the bus and subway fares are invalid, seeing that the amount charged is too high for the low quality of the services.