When parking uphill without a curb, which direction should the wheels be turned?

When parking uphill without a curb, the correct practice is to turn the wheels toward the right, positioning them in such a way that if the vehicle were to roll, it would roll off the roadway and into a safe area rather than into traffic. Turning the wheels to the right means that the rear of the vehicle will slide into the shoulder or edge of the road, which helps prevent potential accidents.

In this scenario, while turning the wheels toward the sidewalk or away from the road may seem intuitive, these actions do not provide the necessary safety precaution against rolling into traffic. Similarly, turning to the left in this situation would be unsafe, as it would direct the vehicle into the lane of oncoming traffic should it roll away. Thus, turning the wheels to the right is the most effective method to ensure safety when parking on a slope without the protection of a curb.