Between the wheels is kinda cramped, but hides you pretty well. While on the road, you can scoot back from under the wheels. It's great to travel out in the warm wind with the sun on your face. You can wave at kids in cars driving by. There are cars not to ride, too.
Safety is the most important thing.
Just Singing These Railroad Blues' Safety is a big deal on the railroad. It is real easy to get good and hurt. You are made of soft, breakable stuff, while railroad equipment is made of very hard, very heavy stuff. A moving boxcar won't even flinch as it quietly rolls right over you in a sneaky surprise attack. Don't walk between the rails.