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It was extended with new stations in the year 2011, and had 166 Tube stations along 125 Km (77.7 miles), ie, each station 753 meters (0.46 miles).
But in February of the year 2016, They were inaugurated 15 new stations on the line 9 sure, it goes from the airport to the city center for a price of 4,50 Euros. So now the Barcelona metro has 181 stations, 145 Km (90.1 miles) total. The map of the year 2017 They have added new lifts and improved graphic design.
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Other maps line at the Barcelona metro: