Final answer:
When parking downhill with no curb present, the front wheels should be turned towards the side of the road. This is a safety measure that prevents the vehicle from rolling into oncoming traffic.
Step-by-step explanation:
When parking downhill, especially when a curb is absent, it's important to ensure your car doesn't roll into the street or into traffic. The correct position for your front wheels is to turn them towards the side of the road, or the shoulder, where you are parking. This way, if your car were to roll, it would roll away from the street and not into oncoming traffic, potentially preventing an accident.
If there were a curb, you would turn your wheels towards the curb so that the car would roll into the curb and stop. But since there is no curb when parking downhill with the curb absent, the ideal action is to turn your front wheels towards the side of the road. This is a safety measure and a common standard in driving tests and road safety protocols.