The Arriyadh Development Authority (ADA) in Saudi Arabia has announced the two winning international consortia who will oversee the design and construction of Riyadh’s new $22.5bn metro system. Officials say the project, said to be the largest public transport initiative in the world, will have six lines and will help boost the economy.

Saudi Arabia to build $22bn Riyadh metro – BBC News
The world’s most luxurious rail station – Daily Mail

Riyadh Metro System

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