— Line 7, coloured brown (currently known as Plaça Catalunya - Avinguda Tibidabo), is a metro-like commuter train line in the Barcelona Metro network operated by FGC, and part of the ATM fare-integrated transport system. Also known as Línia de Balmes, as it climbs Carrer de Balmes uphill into Tibidabo, it shares three stations with FGC L6. A more effective integration into the main metro system is expected to be applied, as well as an extension of the line.