Transport Metropolità de Barcelona (TMB) is the public transport operator in Barcelona, Spain. It manages the city's extensive network of metro lines, buses, and trams, providing efficient and accessible transportation for residents and visitors. TMB aims to promote sustainable mobility and reduce traffic congestion in the urban area. The Barcelona Metro consists of multiple lines that connect various neighborhoods and key locations, while the bus network covers a broader area. TMB also offers services like the TMB App for real-time information and ticket purchasing, making it easier for users to navigate the city's transport system.