Here's the answer to your questions. Sorry, the post is kind of long.
I am traveling from Philly to Chicago & Detroit via Amtrak (I have a flying phobia) & will be on the go the entire trip. I am going to a dance music festival. At the festival, I will be listening to music and dancing for 16 hours a day (if I can hold up).
I will not cook for the entire time. And will have no access to a car- travel is by foot & subway. It's a varied, chaotic schedule. Here's my itinerary:
Day 1: Amtrak for 20+ hours
Day 2 & 3: Staying with friends in Chicago (easy to eat normal there)
Day 4: 5 hours on Amtrak to Detroit, then hotel nap for 2 hours, then dancing at a nightclub party for 6 hours (that would be a good day to have packed food)
Day 5, 6, 7: 10 hours at an outdoor festival, 2 hour nap at hotel, 6 hours nightclub dancing. (These will be my worst eating days)
Day 8: Collapse on Amtrak's 20 hour trip back to Philly.
I think I will not have a problem getting most foods while I travel. But I am used to eating a lot of vegetables and am worried about GI distress if I don't have veggies. I was thinking that broccoli, cauliflower, grape tomatoes, and cabbage would travel well. My plan was to bring and eat veggies on the trip. And buy some more while in Chicago. But I won't have a moment of time to get produce in Detroit.
I know what "food" they serve in music festivals- hot dogs, pizza, burgers, fries, funnel cake & beer. Nowadays vegetarianism is more accepted, so maybe they'll have a falafel stand.
Doing this trip and eating healthy will be an adventure. I can't wait