As Metro gears up for this summer’s  platform improvement project—a plan to repair platforms at the Vienna, Dunn Loring, West Falls Church, and East Falls Church stations on the Orange Line—two stations will be closed this weekend. Shuttle buses will replace trains at the Vienna and Dunn Loring stations on Saturday and Sunday. Trains between West Falls Church and New Carrollton will run every 12-15 minutes.

Things will be a little slow on the Red Line, where trains will run every 18 minutes between Shady Grove and Glenmont, and additional trains will run every nine minutes between Medical Center and Glenmont from 9 a.m. to 9 p.m. Plus, there will be single tracking between Grosvenor-Strathmore and Twinbrook as crews install cable and communication equipment.

The Silver, Blue, Yellow, and Green lines will be operating normally.

Here’s more details from WMATA:

Red Line

• Red Line trains operate every 18 minutes between Shady Grove and Glenmont.
• Additional trains every 9 minutes between Medical Center and Glenmont from 9 a.m. to 9 p.m.
• Due to installation of cable/communication equipment to support cellular service in tunnels and new radio system, trains will single track between Grosvenor-Strathmore and Twinbrook.

Orange Line

• Regular service intervals, trains every 12-15 minutes between West Falls Church and New Carrollton.
• Due to preparation for the Summer Platform Improvement Project, free shuttle busses replace trains between Vienna and West Falls Church.
• Vienna and Dunn Loring stations will be closed.

Silver Line

• Regular service, trains every 12-15 minutes.

Blue Line

• Regular service, trains every 12-15 minutes.

Yellow Line

• Regular service, trains every 12-15 minutes.

Green Line

• Regular service, trains every 12-15 minutes.