When we think of getting on the road in our cars, our first thoughts may not be that fellow drivers are particularly safe or careful—but human drivers are more reliable than one may expect. For each fatal car crash in the United States, motor vehicles log a whopping hundred million miles on the road.When we think of getting on the road in our cars, our first thoughts may not be that fellow drivers are particularly safe or careful—but human drivers are more reliable than one may expect. For each fatal car crash in the United States, motor vehicles log a whopping hundred million miles on the road.[#item_full_content]