Well the shortest distance between two points is a straight line. Pipe and sidewalk routing have similar objectives and constraints. Not all sidewalks are hea

Well the shortest distance between two points is a straight line. Pipe and sidewalk routing have similar objectives and constraints. Not all sidewalks are heated. It’s more like they paved the top of the service vaults. I don’t recall this problem specifically but the university employs a lot of students and alums.