Metro’s Red, Orange and Blue lines will be disrupted by track work this weekend, with the most extensive delays occurring on the Red Line. All the work is scheduled to start at 10 p.m. Friday and continue through the rail system’s midnight closing on Sunday.

Pay special attention to this if you’re going to the 7 p.m. Capitals games at Verizon Center on Friday and Sunday, or the 7 p.m. Wizards game on Saturday. While the maintenance schedule is difficult for all weekend riders, it can be particularly troublesome for Friday night riders. When fans go to the game, the schedule is normal. By the time they leave, some stations may be closed, or the line may be single-tracking.

Red Line: This is the line with closed stations. Free shuttle buses will replace trains between Shady Grove and White Flint. The Shady Grove, Rockville and Twinbrook stations will be closed. Trains are scheduled to operate about every 10 minutes between White Flint and Glenmont.

Travelers who use their cars to reach the Red Line may want to drive farther down Route 355 to Grosvenor or Bethesda and park at the lots and garages around those stations.

Some drivers might find it more convenient to drive east and use stations along the other side of the line, such as Glenmont or Silver Spring.Weekend parking is free at the facilities operated by Metro or Montgomery County.

Riders who use the shuttle buses on the western portion of the line should add about 20 minutes to their normal travel times.

On Friday night, the last trains through the work zone before those three stations close is scheduled to leave Shady Grove at 9:44 p.m. and Glenmont at 8:53 p.m.

Orange Line: Trains will share tracks between Eastern Market and Stadium-Armory and between East Falls Church and West Falls Church. They will leave the ends of the line at Vienna and New Carrollton about every 20 minutes. Add about 15 minutes to normal travel times.

Blue Line: Trains will share a track between Eastern Market and Stadium-Armory around the same work zone that will disrupt the Orange Line trains.

Blue Line trains will leave Franconia-Springfield and Largo Town Center about every 20 minutes. Add about 15 minutes to normal travel times.