From the article: > Another issue of the Barcelona Line 9, is actually cost. > The Initial estimates for the Barcelona Line 9 pegged the cost at around 2 bill

From the article: > Another issue of the Barcelona Line 9, is actually cost. > The Initial estimates for the Barcelona Line 9 pegged the cost at around 2 billion Euros (3 billion CAD), but actual construction cost turned out to be 6.927 billion Euros (10.3 billion CAD). Per kilometre, that’s 145 million Euros (216 million CAD).