Welcome Newguy!

As has already been said, you probably won't need anything other than some comfort items. Being on a college campus, you probably won't have to worry about food or a place to lay your head for long.

As for the train thing, my only experience with one of those is from the news on TV. From all the overheads they show, it doesn't look like the cars make it 200ft from the tracks. But, trains carry everything, and the potential for a hazmat incident is huge. Other than a paper type mask, in one of those 'bout all you can do is boogie away on your bike asap...