Scheduled track work will cause delays for the Metrorail system this weekend.
Starting at 10 p.m. Friday, buses will replace trains on the Orange Line between East Falls Church and West Falls Church due to testing related to the Silver Line extension to Dulles airport. Metro says anyone headed through that stretch of the orange line can expect it take 20 minutes longer than usual.
Meanwhile on the Blue Line, trains will be sharing a single track between Stadium Armory and Addison Road while crews work on concrete slabs beneath the rails.
Red Line trains will be single tracking between Takoma and Forest Glen for platform work and fiber optic cable installation.
And on the Green Line, trains will share a track between College Park and Greenbelt for crosstie maintenance.
There's no work scheduled on the Yellow Line. Service should return to normal Monday morning.