The reason for the train crash in the United States became clear

The reason for the train accident happening in the USA was clear: A statement about the train accident happening in the USA was made. In the city of New York, USA, it was determined that the train accident that occurred on the weekend and where 4 people died, was caused by the sleep of the mechanic.
The police also noted that the train had tripled the normal speed when entering the corner. It is stated that the speed of the mechanic's sleep and the excessive speed when entering the curve made the accident inevitable.
In New York, during the train accident in which 4 people died, the wagons did not roll to the nearby freezing river immediately, preventing the disaster from getting bigger.