Rear-end collisions are a common type of traffic accident, and are more likely to occur with new drivers who have poor response abilities. Rear-end collisions are also a very dangerous type of traffic accident; on highways, they can easily result in multi-vehicle pile-ups that cause significant casualties. Actually, preventing rear-end collisions mainly lies in the technique of following cars - when driving on the road, you can't follow just any car; like the following six types of vehicles which you should try not to follow.