They're doing track work on the Red Line, no service btween NoMa and Ft Totten. That should mean normal service between Shady Grove and NoMa, right? Why not, they just turn the trains at NoMa instead of Glenmont. But, no such luck, headways are 5 minutes or even more, and this is during the rush hour when crush loads require headways of 2 minutes. Crowding is worse than usual, and ive been forced to use the 520 am marc train to make sure I get to work on time. Operational reasons why this should be so?