Trains running between Farragut North and NoMa-Gallaudet will be slightly speedier than elsewhere on the Red Line.
Scheduled track work will affect service on all five of Metro's rail lines this weekend.
The work and delays will begin at 10 p.m. Friday night. That's when Red Line trains will start running once every 24 minutes, due to infrastructure work between Farragut North and Van Ness. The wait be a little shorter tomorrow and Sunday but just on part of the line and only between 9 a.m. and 9 p.m., when extra trains running between Farragut North and NoMa-Gallaudet will make the interval more like 12-14 minutes.
On the Green Line, meanwhile, trains will run once every 16 minutes all weekend along the entire line.
And on the Orange, Blue, and Yellow Lines, trains will run only once every 20 minutes all weekend.
Service around the system should be back to normal on Monday.