Causes of Car Accidents Car accidents are common and can result in serious injuries. The lives of victims as well as families are also affected. These injuries are caused when energy is transferred through an collision. These injuries can be caused by whiplash or spinal cord trauma as well as leg injuries. Driver Errors Whatever the vehicle driver's error is the primary cause of almost every car crash in the United States. Drivers can prevent these accidents by following safer driving practices and paying attention to the road conditions. Oth