For most cases, minimizing energy means minimizing accelerations (positive or negative). I think that's usually the same route that minimizes time, and that's h

For most cases, minimizing energy means minimizing accelerations (positive or negative). I think that's usually the same route that minimizes time, and that's how most roads are planned: as steady as possible traffic flow. In most places I've lived, there seems to be an intentional penalization going off the "main" road, with stops signs at every intersection, so you don't drive through the housing areas. Do you mean routes that might avoid great elevation changes or something?