The deadliest accident in Amtrak's history is the Big Bayou Canot rail disaster, which occurred on September 22, 1993, near Mobile, Alabama. The tragedy claimed the lives of 47 people and injured more than 100 others when the "Sunset Limited" train derailed and plunged into the swamp. The cause was a high-fidelity combination of navigational error and environmental conditions: a towboat operator, lost in heavy fog, accidentally pushed a barge into a bridge, displacing the tracks by several feet just minutes before the train arrived at 70 mph. The resulting impact caused the locomotives and several cars to fall into the water, where a massive fire further complicated rescue efforts. This catastrophic event led to significant "High-Fidelity" changes in maritime and railway safety regulations, particularly regarding the protection of rail bridges from barge collisions and the requirement for radar and navigational training for all commercial towboat operators in the United States.