THE governor of Riyadh Prince Khaled bin Bandar officially launched construction on April 3 of the six-line metro to be built in the Saudi capital.

MTR Corporation has awarded Aecom a contract to design the cross-harbour tunnel on Hong Kong's North South Line (NSL), which forms part of the new Shatin – Central Link (SCL).

HS2 Ltd, the company developing the high-speed line between London, Birmingham and northern England, has awarded the first contracts for planning services for the second phase of the route.

JOHN Holland has secured the $A 570m ($US 595m)contract to build the City to Maribyrnong River section of Victoria's Regional Rail Link.