The 2008 bus crash near Victoria, Texas killed one and injured forty six.
The driver evidently fell asleep while driving and when he awoke over compensated his steeering and lost control of the bus. After the bus overturned a pickup struck its underside.
The rather simplistic scenario of the accident has given rise to nineteen safety suggestions. For more see http://www.maryland-law.com/blog/bus-crash-safety-its-about-time.cfm