Priority level can also be used to determine the amount of energy the driver of a vehicle can use to get from point A to point B. As our vehicles ability to sense variables increases, and the cushion that separates us and the point of losing control diminishes, efficiency will become the limiting factor for how fast we can travel. Examples of a vehicle that could have a higher priority level given the circumstances are: life safety, such as police, fire, and ambulance.%7E%7E%7E%7E