What method of evacuation offers the minimum passenger safety?

Evacuating passengers directly onto the roadbed offers the minimum safety because it exposes them to a variety of hazards. On the roadbed, passengers are placed in close proximity to live tracks, where trains may still be operating or approaching. This scenario significantly increases the risk of injury from moving trains or other related incidents.

In contrast, the other options involve moving passengers to safer locations such as platforms or stations, which are specifically designed for passenger safety and provide better protection from oncoming trains. Platforms and stations also allow for easier access for emergency services, enhancing the overall safety of passengers during an evacuation.

Therefore, evacuating to the roadbed is not only inappropriate in terms of passenger safety, but it also fails to utilize the safer alternatives available within a transit environment.