The Metro train track was being operated by an employee with 3 or fewer months of experience for Metro Safety
. However, Metro 112 was generally controlled by a computer compared to the operator, unless the train was in manual mode. Metro has reported that 112 were in "automatic mode" at the time of the collision the sense that the team was operating the train, the train operator on board. It was also reported that the emergency brake on the train 112 had been depressed, which could mean that the railway company tried to manually stop the train to avoid collision.