So the DC Metro does scheduled track maintenance on weekends, which often results in trains going both ways having to use the same side of the platform at certain stations. Last night, a friend and I were at the Crystal City station and the northbound platform was blocked off and had signs saying "This platform closed due to schedule [sic] track maintenance". Except that when the next northbound train came in, it came in on the northbound platform! Nobody could get to the train because the escalators were blocked, and the people getting off the train had to wait until the station manager unblocked the escalators before they could leave the station. They opened up the northbound platform after that and we got on the next train, but seriously?