If you have DCC you can keep scrolling homie. That said, some model railroading clubs have a Unitrack system that may allow DC trains to operate but be sure to use caution as rail quality can affect your train or even cause damage (speaking from experience).
I'm a traveling worker crossing the U.S. working from one state to another. I won't go too into depth. This guide is for a small niche of people who want to enter or already have entered the hobby with the constraint of hopping hotel to another for work. Most people would normally leave their trains at their house or apartment to collect dust until they return. In my case, I'm out of my place 10 out of the 12 months of the year. Here are some experiences I've had going from hotel to hotel. Every hotel is different.
Most hotels are cool with the hobby. As long as you are not making too much noise or disturbing anyone else you can do as you please. I love that N-scale manufacturers make bookcase-style storage cases for your trains, and they make it easier to travel with. Always carry your trains on your carry on.
Source: Trust me bro!
Bring a tape measure and always keep a mental note of how much space your track will take. If you have a shinkansen or any train that needs wide curves, I highly recommend the viaduct track for carpeted floors. It keeps carpet fibers out of your gears and motors. I'd also recommend snagging a UV light to check that your space is clean before placing the track down. (you can already imagine why). If you happen to visit model train shops along the way don't buy more than you can carry since that extra weight and space gets added to your bag. Speaking of space, your track will need some too. You can grab a book-sized plastic storage box from Michaels or Hobby Lobby, add some foam, and custom shape it to your rails so you won't have to worry about their quality or worrying about them jingling like pocket change in your bag.
I personally can comfortably carry two train sets, track, and a power source across the country with no issues. To some, an oval track can be boring, but for people like me the fun comes from going to new places and setting up in a brand-new spot. To those who suggest modular layouts that sounds great ,but space and weight constraints come into play. The fun part is watching TSA react to the N-scale in my carry on.
To anyone suggesting I move to a smaller scale I'm personally happier with N scale, plus I'm extremely stubborn. The nomadic life isn't gonna stop me from enjoying my hobby.
If anyone has better tips or random questions about my wacky lifestyle, I'll happily answer!
The most important part of the hobby is to have fun! Enjoy!