Why is the train operator advised not to back the train after overrunning a platform?

Backing the train after overrunning a platform is not advised primarily because the operator may not have a clear view of the conditions at the other end of the train. When a train is moving in reverse, visibility can be significantly limited, especially if the operator is in the cab at the front and the rear of the train is obscured. This lack of visibility can lead to potential safety hazards, including the risk of colliding with obstacles, people, or other trains that may not be immediately apparent.

In addition to safety concerns, there are also operational reasons to avoid such maneuvers. If the operator cannot see what lies ahead while reversing, they cannot ensure the safety of the train's movement and the safety of those around it. It's essential for the operator to have complete situational awareness to make informed decisions, and backing without clear visibility increases the likelihood of accidents.

While other factors may play a role in train operations, the fundamental issue of visibility and safety makes this reason particularly critical in assessing why backing a train after overrunning a platform is not recommended.