https://www.cbsnews.com/baltimore/news/ ... in-delays/
BALTIMORE — Right now the MTA is experiencing a major communications system failure that has led to massive cancellations and delays...
The MTA said that the technical issues began after system maintenance was conducted overnight, and that they're working to restore service as quickly as possible.
MARC Train is working with Amtrak to accommodate passengers traveling between Penn Station, BWI, New Carrollton, or Washington.