Metro has announced the schedule for this weekend’s track work, which includes shuttle bus-only service between East Falls Church and West Falls Church, as well as single-track service on the Red, Yellow and Blue lines.

Orange Line

This will be one of a series of weekend rail service shutdowns to create a safe zone for work on connecting the Orange Line to the Dulles Metrorail extension.

From 10 p.m. Friday through the train system’s midnight closing on Sunday, trains will not operate between East Falls Church and West Falls Church. Instead, Metro will provide free shuttle buses.

The two stations will remain open. The last train will leave the end of the line at Vienna at 2:05 a.m. Friday and Saturday nights and at 11:05 p.m. on Sunday. That’s 20 minutes earlier than usual.

Between Vienna and West Falls Church stations, trains will operate every 24 minutes, sharing one track while workers replace cross ties and insulators.

Traveling through the work zone will add about 30 minutes to a rider’s normal travel time.

Red Line

Trains will share a track through downtown D.C., between Dupont Circle and Judiciary Square. Workers will be doing some ceiling repairs at Farragut North, which really needs it, and replacing rail fasteners, and installing new emergency phones and communication cables.

Between 9:30 a.m. and 9 p.m. Saturday and Sunday, trains will leave the ends of the line at Shady Grove and Glenmont every 10 minutes. Every other train from Shady Grove station will end its run at Dupont Circle and turn back. Every other train from Glenmont station will terminate at Union Station.

At all other times this weekend, the trains will leave every 20 minutes from Shady Grove and Glenmont, but will encounter delays in the single-tracking zone, which could be a half hour.

The last train from Glenmont will leave at 2:26 a.m. Friday and Saturday nights and at 11:26 p.m. on Sunday. That’s 11 minutes earlier than usual.

Blue/Yellow lines

Trains will share a track between Braddock Road and Van Dorn Street and Huntington stations. Workers will be installing new rail and other equipment.

Blue Line trains will leave the ends of the line at Franconia-Springfield and Largo Town Center about every 24 minutes.

Yellow Line trains will operate between Huntington and Mount Vernon Square about every 24 minutes. They won’t go north to Fort Totten as they normally would on weekends.

Riders should add about 20 minutes to their normal travel time through the work zone.