 Some well-known fatal collision conditions in the United States include vehicle speed, urban zone, intersection absence and night, according to the NHTSA.According to the GHSA, in the USA, 74% of pedestrian deaths occur at night time, and 72% of the deaths involve pedestrians not crossing at provided road crossing areas.According to a law professor at the University of South Carolina, if a pedestrian or cyclist is killed in a collision and thereby prevented from providing evidence, there is a risk that they will be unfairly blamed for the collision.