Qatar has proposed a metro rail network that will have four lines spread across 212km, which will run both underground and on elevated tracks.
Out of the 212km rail network, about 42% (89km) will be constructed underground, over 38% (81km) will be elevated and the remaining 20% (42km) will run on the ground, the Qatar Railways Company said.
The metro rail network is part of the Integrated Rail Network, which will have a long-distance passenger and freight rail route of about 490km, including nine passenger stations and six terminals.
The 135km-long first phase of the metro rail network will include 53km underground and 48km elevated tracks and have 47 stations.
The first phase is expected to be completed by 2020, while the second phase will be completed by 2026.
The first five 'design-built' packages are expected to be tendered by the first quarter of 2012 for the construction project, which will be carried out in 15 different lots.