A year after it officially began operations, Edmonton's much-troubled Metro Line is being shut down this weekend for repairs.

Service will be suspended Saturday and Sunday as crews work at track level to perform maintenance and repairs, city transportation officials announced Wednesday.

The works includes repairs to the track guard rail and the MacEwan Station roof.

Regular maintenance on the train's traction power cables, the installation of a glass railing at the station, and a bird deterrent will also be completed this weekend.

The shutdown coincides with the Saturday evening Dolly Parton concert at Rogers Place, which will be the second major event for the new downtown arena.

Transportation officials say this weekend was chosen in order to complete the work before winter.

Shuttle buses will run between Metro Line stations and downtown approximately every 15 minutes, with extra service every seven to eight minutes for Saturday's special events.

Regular bus service will operate at transit centres as scheduled, including Route 512, city officials said.

Capital Line trains will also run as scheduled. Metro Line LRT service is scheduled to resume Monday.

​It's been one year since the long-delayed Metro LRT Line started carrying passengers, but trains are no closer to running at full speed, or full frequency.

Since Sept. 6, 2015, the city has been forced to run the trains at half speed due to safety concerns caused by software provided by the signalling system contractor, Thales.

At the time, city staff and council said they hoped to have a solution in place by the end of 2015. Now, a year later, the city is still looking for a fix.

The soonest the line is expected to run at full speed and frequency is 2017.