What is the primary purpose of properly adjusted front wheels when parked on an incline?

When parked on an incline, the primary purpose of properly adjusted front wheels is to prevent vehicle rollback. This safety technique is crucial to ensure that the vehicle remains stationary while parked on a slope. By turning the front wheels toward the curb or the edge of the road, the vehicle's weight is directed toward the curb, which acts as a barrier to further rolling. In the event that the vehicle does start to roll, the turned wheels will encounter the curb first, stopping the vehicle from continuing down the incline.

This practice is especially important because a vehicle that rolls can pose a danger to pedestrians and other vehicles. Properly adjusting the front wheels while parked not only enhances safety but also follows the best practices for parking in hilly areas, helping to minimize the risk of accidents caused by unintentional vehicle movement.