Standing near railroad tracks is dangerous when a train passes by rapidly because the movement of the train creates a lower pressure area, pushing you towards the train due to the higher atmospheric pressure on the other side.
It is dangerous to stand close to railroad tracks when a rapidly moving commuter train passes due to the phenomenon related to atmospheric pressure. As the train moves quickly, it displaces the air around it, creating a lower pressure area next to the train. The higher atmospheric pressure on the side away from the train then pushes you towards the moving train, presenting a risk of injury or even death.
The significant difference in air pressure on either side of you when close to a fast-moving train can result in being pushed towards the train due to the higher atmospheric pressure behind compared to the low pressure area created by the train's movement.