The trial run of Riyadh Metro is expected to be in the mid-2018, said Ibrahim Al-Sultan, director of projects and planning centre at Arriyadh Development Authority
The project is more than 62 percent completed, Al-Sultan added.
As for the bus projects, ADA will start receiving 900 Mercedes buses by the end of next year, he said.
When complete, the metro will span 176 kilometres and include 85 stations. A bus network will complement the project with 24 routes, running 1,083 kilometres and stopping at 776 stations.