One particular stretch on Interstate 75 in Tennessee seemed to be accident-proneOne particular stretch on Interstate 75 in Tennessee seemed to be accident-prone resulting in seven multi-car accidents in 15 years including a 62-vehicle accident in 1978 and a 99-vehicle, multiple-fatality accident in 1990. Each accident was caused by a sudden and impenetrable fog, which forced drivers to suddenly brake without concern for those behind them. Environmental exp...详情