Dubai's Roads and Transport Authority (RTA) has revealed construction updates related to Route 2020, the extension of Dubai Metro. 

The announcements were made during a visit conducted by RTA director-general, HE Mattar Al Tayer, to France, where he received progress reports of trains being produced for Route 2020. 

French outfit, Alstom, has a contract to supply 50 trains to RTA, of which 15 will serve Route 2020, and 35 will upgrade the service levels of Dubai Metro.

Remarking on the railway extension project, Al Tayer said: "Work on Route 2020 is progressing according to the approved schedule, and the achievement rate [has] exceeded 12%.

"The project contractor is currently inserting piles at a depth of 25m to 30m, and works [have] started [for] casting concrete pillars of the metro viaduct.

"This stage would be a milestone in the progress chart of the project works, marking the emergence of the components [that] would be visible to road users and inhabitants of nearby areas."

Expolink, a consortium of Alstom, Acciona, and Gulermack, was awarded the $2.8bn (AED10.6bn) contract to develop Route 2020, in October 2016.

Route 2020 extends 15km from Nakheel Harbour and Tower Station on Dubai Metro's Red Line, comprising 11.8km of elevated track and 3.2km of underground track.

The extension comprises seven stations, including an interchange station, one station at the Expo 2020 site, three elevated stations, and two underground stations.