Hi there! Current V25 (third year) here about to start LA block (not in the new curriculum) so I will be traveling to NBC almost daily from January to March. Most people have cars to commute out there and those that do not carpool with friends/classmates. Every class has their own GroupMe where people can ask for rides/ offer rides, etc. The drive honestly isn't terrible, about 45 minutes to an hour depending on time of day, traffic, how fast you drive, and if you stop at Starbucks/Dunks/Wawa for coffee on the way. I find it a good way to de-stress - I usually put on some music and sing really loud 😆
During your first two years, you don't go out to NBC too much. For my class it was honestly like 2-3 times a semester, although some people (me) spent more time out there with things like Surgery Crew, wet labs, research, and work. Not sure how much it is for the new curriciulum, hopefully someone on here can speak to that! The only time you'll be required to spend and extended period of time at NBC is during clinics where you will have 3 week rotations. However, you won't be required to be anywhere else (class or Ryan Hospital) at that time. There are dorms for you to live in at NBC during your rotation so you won't have to commute from Philly daily. Some people, depending on their major (large animal majors) will move out to near NBC since most of their rotations will be out there and commute to Philly for the small amount of rotations they have there.
For both my curriculum and the new curriculum, they seem to have done a really good job of giving you time to get to NBC (please V26 + V27 feel free to refute that!). I know sometimes you'll have class in the AM and then have to go to NBC in the afternoon. You will have ample time to get out there, so don't worry too much about that!
Hope this helps!