It's so bad the "next train" signs aren't working. All lines are experiencing delays, but the Red Line is the worst of them all, according to a T spokesman:
A week of constant exposure to frigid temperatures, ice, and record snowfall has taken a major toll on the MBTA's vehicles and infrastructure. Rail service, particularly on the Red Line and Commuter Rail, will be severely impacted. Due to a shortage of fully functioning subway cars, customers are asked to consider an alternative to the Red Line today.