Did you know that the I-45 in Houston is responsible for the most fatal accidents in Texas, and it's also among the most deadly in the U.S? We do know the hours when most of the fatal and non-fatal traffic accidents in Texas occur, thanks to TxDOT. Here is what the data shows:In Texas, fatal crashes occur most often late in the evening and early in the morning, according to TXOneCall. It is reported that the most common times for non-fatal crashes are between 3:00 pm and 6:00 pm. This leads to the belief that Impaired and Fatigued Driving May Be Responsible For Nighttime Fatal Accidents.