Buses in Barcelona
Buses are a widely used form of public transport in Barcelona, with an extensive local and interurban bus network. There is also a network of night buses called Nitbus (es) and a transitway system called RetBus under development. All bus routes serving Barcelona metropolitan area are organized by Autoritat del Transport Metropolità (ATM). These buses are operated mostly operated by Transports Metropolitans de Barcelona (TMB), although the city is also served by several private companies.