Accidents involving motor vehicles are among the most common causes of serious injury and death in the United States each year. Despite the advancements in technology and significant safety improvements in cars and in the design of roads, automobile accidents remain quite common. They are a class of tort cases which derive, for the most part, from the basic tort principles of negligence. Negligence is generally defined as the lack of ordinary care. It is a failure to use that degree of care that a reasonably prudent person would have used under the same circumstances. It may arise from doing an act that a reasonably prudent person would not have done under the same circumstances, or, from failing to do an act that a reasonably prudent person would have done under the same circumstances. The most common types of automobile accidents are caused by driver error, driver negligence, and distraction.