Flow consortium, led by Ansaldo STS, awarded $US 2.9bn Riyadh Metro contract
ARRIYADH Development Authority (ADA) has awarded the Flow consortium, led by Ansaldo STS and including Italian State Railways (FS) and Alstom Transport, a Rials 10.9bn ($US 2.9bn) operation and maintenance services contract for Lines 3, 4, 5 and 6 of the Riyadh Metro network currently under construction in Saudi Arabia.