Saudi Arabia's Arriyadh Development Authority (ADA) has awarded $22bn in contracts to three consortiums for the design and construction of a new automated metro system in Riyadh.
Saudi Arabia has awarded a $9.4bn contract to a Bechtel-led consortium, while Fomento de Construcciones y Contratas (FCC) received a contract worth $7.8bn and an Ansaldo consortium received a $5.2bn deal.
US firm Bechtel's consortium includes Almabani General Contractors, Consolidated Contractors and Siemens (BACS), and will design and construct rail Lines 1 and 2 of the overall six-line metro system, in addition to delivering train cars, signalling, electrification and integration of the new lines.
Spanish firm FCC's work on the project will include construction of lines 4, 5 and 6, which includes 25 stations and will involve theconstruction of 64.6km of rail track, 29.8km of viaducts, 26.6km of underground track and 8.2km of overground track.
FCC's consortium includes Samsung, Alstom, Strukton, Freyssinet Saudi Arabia, Typsa and Setec.
Italian firm Ansaldo's deal includes the construction of the longest line in the new metropolitan system, Line 3 at 40.7km.
Ansaldo's consortium partners include Salini-Impregilo, Larsen & Toubrom, Nesma, Ansaldo STS and Bombardier.
Ansaldo will also be responsible for the overall technological integration of the signalling systems, automation train control (ATC) and communication-based train control (CBTC), the power system, the third rail, the operational control centre, the telecommunications systems and furnishing the depots.
Construction on the 175km six-line Riyadh Metro system is scheduled to commence during the first quarter, with anticipated completion in five years.
Serving the capital city's center, government facilities, universities, commercial areas, the airport and the financial district, Riyadh Metro is the longest under-development metro in the world.
The construction of the 85-station network will require 600,000t of steel and 4.3 million cubic metres of concrete, while employing over 30,000 workers.
Image: The new Riyadh metro system is targeted at reducing traffic congestion, support and driving the Saudi economy. Photo: courtesy of ALSTOM.