"Dooring" accidents are collisions that occur when a bicyclist strikes a car door that is opened into their path. These accidents typically happen when a parked motorist or passenger opens their door without checking for oncoming bicyclists.
Dooring bike accidents often occur on streets where cars are parked parallel to a bike lane or on the right-hand side of the road. As a bicyclist rides past parked cars, a driver or passenger suddenly opens a car door into their path, leaving the bicyclist little or no time to react.
A bicyclist may collide with the door and be thrown off their bike, potentially into the path of moving traffic.