The first recorded bicycle crash occurred in 1842. Many bicycle accidents are unreported and even minor bicycle accidents reported not involving hospitalization can incur significant costs for the cyclist and others. Types/Factors for Bicycle accidents: The most common type of bicycle/motor vehicle crashes involve; motorists failing to yield the right of way to a straight through bicyclist when they make a left turn; motorist drive out a sign control; bicyclist riding through a sign control; motorist turning right on red. Impaired: Of the 11 crashes in which a bicyclist was killed, 5 (45%) involved either an impaired bicyclist or motorist. Of the 1,045 crashes in which a bicyclist was injured, 29 (3%) involved either an impaired bicyclist or motorist. Bicyclist crashes most often occur on weekdays. impaired bicyclist or motorist. Most bicyclist crashes occur between 3 and 7 p.m., the hours after school and the prime time that adults commute from work.