The line VI of the Barcelona Metro network was an ambitious 1965 project for a proposed underground railway line in the city of Barcelona. The line would have stretched from the Zona Franca towards Plaça de Francesc Macià (then known as Calvo Sotelo), and from there into Travessera de Gràcia, Glòries, the Besòs River area, northern Badalona, and in Santa Coloma de Gramenet. This very costly project was progressively abandoned: first, in 1984, by shortening the line. Later, in 1996, a new plan was devised for the city's public transport infrastructures. In 2001 yet another plan (PDI) was put forward, discarding the line, and proposing other transport projects instead.