According to the Washington Metropolitan Area Transit Authority, Green Line trains will run every 20 minutes from 10 p.m. Friday, November 7, to system close Sunday evening.  Trains normally run every 12 minutes.

The delays are due to work being performed on joint elimination, rail tie, fastener and insulator renewal between Prince George’s Plaza and Greenbelt, according to WMATA.

The Red Line will also experience substantial delays, where WMATA says trains will run every 16 minutes.  Check for a complete list of track work this weekend.

Metro says it is investing $5.5 billion on system improvements, which include new rail, ties, platforms, escalators, signals, lighting, communication systems, and more.