What safety measure should be taken when parking on an incline?

When parking on an incline, it is crucial to ensure the wheels are blocked. This safety measure prevents the vehicle from rolling downhill if the brakes were to fail or if the vehicle is inadvertently shifted out of gear. Blocking the wheels provides a physical barrier that stabilizes the vehicle and helps prevent accidents or injury caused by unintended movement.

Using wheel chocks or other blocking mechanisms effectively secures the vehicle in place, especially on a slope, where gravity creates a significant force that could cause the vehicle to roll. It is also recommended to note that other measures, such as turning the wheels towards the curb or using the parking brake, are typically advised in conjunction with blocking the wheels. However, the primary safety focus here is the immobilization provided through wheel blocking as a critical precaution.