A car flipped over on to its roof after colliding with a parked vehicle.
The accident happened at 1.34pm on Thursday in Addison Road, Hove.
Police, fire and ambulance services were called.
The driver, who was briefly trapped, suffered minor injuries and no one else was hurt.
The road, which is a 20mph limit, was blocked to traffic for more than six hours until the overturned car was removed.
There is no indication of any arrests.