Hi Rose,
Thank you so much for your reply, and I share your experience. I have now been at Hopkins for 6 weeks and have taken the Monument street bike lane from Mt Vernon almost every day. Agree it's very doable, very quick/convient, and I have taken it as late as 9:30pm back without issues (although one day there was a shooting at Popeye later in the evening. After dark (and usually go back `8pm) I look around very carefully, but frankly I have not had any issues at all, and am starting to feel more confident / safe. I came from Chicago (Univ of Chicago/Chicago Southside), and this may not be that different. As long as I am in the bike lanes, insulated from traffic/cars - seems very safe. Cars may be the bigger concern if not in a bike lane. I took the shuttle twice (and maybe did it the wrong way), but it took quite long, waiting until it eventually left. I did ask whether they could transport a bike, and many of the shuttle busses apparently can, although I have not tried that.
Thanks again, glad to be be part of the bike community in Baltimore :-)
Tony