If you’re going to brave the frigid air and venture out of the house this weekend, look at the train schedule ahead of time: Almost all lines are running slow this weekend. The Orange, Silver, Blue, and Yellow lines are all running 20 minutes apart for rebuilding and grout pad renewal.

Besides that, the Franconia-Springfield, Van Dorn Street, and King Street stations on the Blue line will all be closed and replaced with shuttle buses. The closure is supposed to allow for grout pad renewal and cable installation. Also, the Silver Line is running from Wiehle-Reston East to New Carrollton this instead of Largo Town Center. If you’ve got to get to Benning Road, Capitol Heights, Addison Road, Morgan Boulevard, or Largo Town Center, be sure to take the Blue Line.

As usual, bless the Green Line: it’s running a regular weekend schedule.

Here’s more from WMATA:

Red Line

• Trains every 9 minutes between Farragut North and Silver Spring during daytime hours
• Trains every 18 minutes between Shady Grove & Glenmont

Due to track bed lighting installation, rail fastener renewal and joint elimination, Red Line trains will single track between Van Ness and Friendship Heights.

Orange Line

• Trains every 20 minutes

To accommodate rebuilding on the Blue Line, Orange Line trains will operate every 20 minutes.

Silver Line

• Trains every 20 minutes, Wiehle-Reston East to New Carrollton

Due to grout pad renewal between Stadium-Armory and Addison Rd, Silver Line trains will operate between Wiehle-Reston East and New Carrollton. Customers traveling to/from Benning Rd, Capitol Heights, Addison Rd, Morgan Blvd and Largo Town Center should use Blue Line trains to complete their trip.

Blue Line

• Trains every 20 minutes, Braddock Rd to Largo Town Center
• Free shuttle buses replace Blue Line trains between Franconia-Springfield, Van Dorn St, King St and Braddock Rd
• Stations closed: Franconia-Springfield, Van Dorn St and King St
• Blue Line trains will single track between Stadium-Armory and Addison Rd.

Work performed: Grout pad renewal, power cable renewal and installation of cable/communication equipment to support cellular service in tunnels and new radio system.

Yellow Line

• Trains every 20 minutes, Braddock Rd to Mt Vernon Sq
• Free shuttle buses replace Yellow Line trains between Huntington, Eisenhower Ave, King St and Braddock Rd
• Stations closed: Huntington, Eisenhower Ave and King StWork performed: power cable renewal and installation of cable/communication equipment to support cellular service in tunnels and new radio system.

Green Line

Regular weekend intervals

Due to grout pad renewal, Saturday and Sunday, 10:00 p.m. until close, trains will single track between Fort Totten and Prince George’s Plaza