Barcelona Metro line 9

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Line 9 (Línia 9 in Catalan) is a completely automated line of the Barcelona Metro network that is currently under construction, with 24 stations open in Barcelona and El Prat de Llobregat, L'Hospitalet de Llobregat, Badalona and Santa Coloma de Gramenet suburbs, since December 2009. The line is currently disconnected in two branches, with a connecting part between the two yet to be built. The Aeroport T1 – Zona Universitària section is called L9 South (L9 Sud in Catalan), and the La Sagrera – Can Zam portion L9 North (L9 Nord in Catalan). Upon completion, it will be the longest underground metro line in Europe.^[1]