A train wreck or train crash is a type of disaster involving one or more trains. Train wrecks often occur as a result of miscommunication, as when a moving train meets another train on the same track; or an accident, such as when a train wheel jumps off a track in a derailment; or when a boiler explosion occurs. Train wrecks have often been widely covered in popular media and in folklore.
The unusual harshness of California's train wrecking statute has been expressly recognized by its appellate courts. The Supreme Court of California explained in 1972 that train wrecking is one of only eight crimes in the California Codes for which a capital sentence is authorized. The California Court of Appeal pointed out the next year that (at that time) train wrecking was the only other crime besides aggravated kidnapping in the Penal Code for which the Legislature had expressly established the punishment of life imprisonment without the possibility of parole.