There's a new MARC schedule for the Penn Line in town, or at least there will be on March 14th. The changes that the MTA made are in an attempt to ease crowding and give riders more options on their commute. I haven't had the chance to dive into it yet, but I will be soon, and will report back. At first glance though, it doesn't seem that it's improved the ability to commute more easily into Baltimore, since the MARC train is still DC centric in its thinking.
If anyone out there who reads this rides the MARC Penn Line, we'd like to hear what you think about this new schedule.