All Metro stations will be open this weekend, but trains will share tracks through work zones on all lines and that will affect the schedules.

Here are the details on Metrorail service between 10 p.m. Friday and the rail system’s midnight closing on Sunday.

Red Line. Crews will work on the tracks between Judiciary Square and NoMa-Gallaudet stations. Trains are scheduled to leave the ends of the line at Shady Grove and Glenmont every 16 minutes. But extra trains will be in service from 9 a.m. to 9 p.m. Saturday and Sunday between Shady Grove and Judiciary Square. In that zone, trains should reach platforms every 10 minutes.

Orange Line. Crews will work on the tracks between Stadium-Armory and Eastern Market. Trains are scheduled to operate every 20 minutes all along the line.

Blue Line. It shares the tunnel with the Orange Line through the work zone, and will be on the same 20-minute schedule.

Green Line. Crews will work track switch parts between the Georgia Avenue and Fort Totten stations and also on the tracks between the Navy Yard and Anacostia stations. Trains all along the line will operate every 20 minutes.

Yellow Line. On a normal weekend, Yellow Line trains share the tunnel with the Green Line that goes north to the Fort Totten station. Because of the weekend work, the Yellow Line trains will go no farther north than Mount Vernon Square. To go beyond that, get off the Yellow Line train at Mount Vernon Square and wait on the platform for the next Green Line train toward Greenbelt. The Yellow Line trains will operate on their normal weekend frequencies.

Travel tips

Metro’s strategy on weekends like this is to space the trains far enough apart so that they don’t get bunched up waiting their turns through the single-tracking work zones. To minimize your wait on the platform, check Metro’s online Trip Planner after midday Friday, when the weekend schedule will be incorporated into the Trip Planner calculations. This helps, but it’s no guarantee of avoiding a wait. The weekend trains can get thrown off schedule, just like the weekday trains. Also, some riders have told me they still experience delays aboard trains at the points where those trains are to enter the single-tracking areas.

Also, the next train signs on the platforms are less reliable on weekends, when the trains are sharing tracks through work zones.