There are many things that can go wrong on the road and lead to a car accident. It might be, a driver who is going a little too fast for conditions and cannot stop in time, or a driver who is momentarily distracted and runs a stop sign. Had it not been for the driver's negligence in these types of situations there would have not been a crash. But they still seem like, in a sense they were truly accidents.
Occasionally however, there are instances in which the driver's actions go beyond simple absent mindedness or a failure of driving skill. There are accidents in which there may be some element aggression or "road rage." The California Highway Patrol suspects that a recent fatal accident may have been the result of road rage.
Almost everyone gets frustrated at some point while they are driving. It might be because the entire freeway or bridge is backed up, or there may be a specific driver who seems to be driving either way too fast or way too slow. But most of us handle these situations with relative grace or at least patient resignation, even if we do not do so with a smile.
Road rage can include anything from abusive language or gestures, physical assaults outside of the vehicles, or driving in an aggressive or unsafe manner. While none of this behavior is desirable when it falls into the realm of dangerously aggressive driving it can have catastrophic consequences.
Source: San Jose Mercury News, "Road rage suspected in crash on I-80 in Richmond," Jan. 25, 2012