Which feature aligns with train doors to separate passengers from the track when trains are away?

• A. Platform screen doors.
• B. Platform edge tactile strips.
• C. Audible announcements.
• D. Stored value cards.

Answer: (A)

Platform screen doors create a physical barrier at the platform edge that aligns with the train’s doors. When the train is docked, the doors open in sync, and when it isn’t there, the barrier remains closed, keeping passengers separated from the track. This direct alignment and barrier address the safety need of preventing access to the track, which is why it’s the best choice.

The other options don’t provide that barrier. Platform edge tactile strips guide visually impaired passengers but don’t stop people from stepping onto the track. Audible announcements convey information but don’t physically separate passengers from the track. Stored value cards are for payment and have no safety barrier function.