I am trying to model the movement of people during a festival in a small town where the people travel from one point in the town to another along a single street. I would like to model the area where this happens in Pathfinder. I would like to know if there is a way of importing a terrain or an area into Pathfinder along with their elevations? Also, is Pathfinder suited for this type of study? Any help or suggestions based on previous experience of modelling such situations would be helpful.