Final answer:
Turn your wheels away from the street when parking uphill without a curb, to prevent the vehicle from rolling into traffic, and ensure to engage the parking brake.
Step-by-step explanation:
When parking uphill without a curb, you should turn your wheels away from the street, so that if your vehicle starts to roll, it will roll away from traffic.
This strategy is a safe practice to prevent your car from accidentally rolling into traffic, which can be caused by various factors such as gravity and potential mechanical failure.
It's important to employ this parking technique along with engaging the parking brake for increased safety.