Marching Camp

I'm a total newbie to RTW, but not to Military History.

Roman troops always "dug in" at the end of a day's march by building a simple palisaded camp. A bit puzzled how troops can hang around, apparently without food/water/shelter, and still fight. Has the standard marching camp been replicated in RTW, because I can't find it?

Build a fort with a general.

Thanks. Questionable cost/benefit at 400 denarii.

Once you get some momentum going, you'll be happy to lose 400 a turn. Stops the blasted vices...