| 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 | 854.7 | 167.6 | Media | |
| REFERENCE | https://www.novinite.com/articles/167648/Subway+Trains+to+Sofia+Airport+Start+Running+at+1+pm+on+April+2 | ||||||
| NOTES | The ‘Real cost’ values have been adjusted for inflation and PPP. Sections of the line constructed in trench are represented with the same line style as the at-grade sections. The project maps are based on information retrieved from OpenStreetMap and our research. Please contact us if you have more accurate information regarding this project. |
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| Go to Sofia city page. | |||||||
