In what circumstances may a train be stopped for safety reasons?

Stopping a train for safety reasons is primarily guided by conditions that directly affect the safety of the passengers, crew, and the integrity of the train system. When there is a track obstruction or adverse weather, these circumstances pose immediate risks that necessitate halting the train to ensure safety.

For instance, a track obstruction could range from debris to an obstruction like a vehicle on the tracks, which would require the train to stop to prevent a collision. Similarly, adverse weather conditions, such as heavy rain, snow, or fog, can impair visibility and traction, making it unsafe to continue. Stopping in these situations allows for assessing the conditions, ensuring that safety measures are in place before proceeding.

Other options may relate to operational or procedural aspects, but they do not emphasize the critical nature of safety in the same way. Scheduled maintenance periods might be planned stops but do not address immediate safety concerns. A passenger request to stop could be considered, but it might not always align with safety protocols unless there's a valid concern. Additionally, while a conductor may have the authority to stop the train based on their judgment, it is more effective when rooted in specific safety circumstances rather than solely personal assessment. Thus, the emphasis on stopping for an obstruction or adverse weather aligns directly with