You may have a U joint that is going bad if the roll is just a few inches. If the problem is rolling a fairly long distance or continuous, your emergency brake is shot. You need to get the lines adjusted.
Turn your wheels out towards the street,that way the tire will rest against the curb and it will not roll.
it could be
there are many hills at the park.
the car will probably roll backwards or forwards if it is on a hill. If the car is on a flat area of the ground, nothing.
Park Hill Meetinghouse was created in 1764.
South Hill Park was created in 1973.
Cannon Hill Park was created in 1873.
Park Hill Stakes was created in 1839.
If you are asking about the method of turning your front wheels into the curb when parking on a hill, it can help reduce the risk of brake failure.
Laurel Hill State Park was created in 1945.
Cedar Hill State Park was created in 1982.
Tower Hill State Park was created in 1922.
Green Hill Park Shelter was created in 1910.