Autonomous driving is classified according to the level of human interaction required and ranges from Level 0 (no automation) to Level 5 (full automation). Level 5 autonomy essentially means no human control over the vehicle beyond requesting a destination. All human interfaces (i.e. steering wheel, brake and acceleration pedals, etc.) are removed and the vehicle makes the complex decisions of trip planning, maneuvering in heavy traffic, and interacting safely with pedestrians.