Images: Carnegie Mellon's car navigation system

MOVE, which stands for Maps Optimized for Vehicular Environments, is partially based on the way people personally give directions. A hand-drawn map typically includes only the necessities for giving someone a general idea of their route and for showing which landmarks and roads are important. They are rarely drawn to scale.

Photo by Carnegie Mellon University/Int. J. Human-Computer Studies/Joonhwan Lee/Jodi Forlizzi/Scott E. Hudson

Caption by Candace Lombardi