LINE Name Country City Regional Rail
Line 1 northern BG Sofia No
CONSTRUCTION DETAILS Start year End year Length (in km) Tunnel (in km) Tunnel Stations Source
2009 2012 5.1 3.1 60% 4 Measured
COST INFORMATION Cost (in M) Currency PPP rate Year PPP Real cost (in M$) Cost/km (in M$) Source
407.0 BGN 1.69 2010 687.8 134.9 Media
REFERENCE https://www.novinite.com/articles/167648/Subway+Trains+to+Sofia+Airport+Start+Running+at+1+pm+on+April+2