Where is the safest location for train stabling on a main line?

The safest location for train stabling on a main line is under the protection of a home signal. This positioning provides a layer of safety because the home signal indicates whether track ahead is clear for movement. When a train is stabled under the protection of this signal, it benefits from clear signaling that can prevent misunderstanding or miscommunication regarding oncoming trains. This minimizes the risk of collisions and ensures that appropriate precautions are in place should a train need to start moving again.

Stabling at the station platform can pose risks, such as blocking access for other trains or passengers and potential safety issues with passengers boarding or alighting. Stabling near the entrance of a tunnel can also be dangerous, as entering or exiting a tunnel involves specific hazards related to visibility and rail traffic. Finally, stabling in front of a maintenance shed may restrict access for maintenance activities and emergency responders and could lead to operational inefficiencies or unsafe conditions. Therefore, positioning a train under the protection of a home signal provides the safest option among the choices provided.