What does a station dwell time reading in green signify?

A station dwell time reading in green typically indicates that the train is expected to depart shortly, which is reflected in the corrected choice indicating a departure in 7 seconds. Green signals generally convey that operations are proceeding smoothly, and a reading that shows a brief remaining dwell time suggests that passengers should still be boarding or disembarking while the train is preparing to leave on schedule.

This green indication helps staff and passengers understand that the train is on track and will soon continue its journey, thus enhancing the flow of operations on the platform. In contrast, choices that suggest delays or prolonged wait times do not align with the typical meaning associated with a green signal, which is directly linked to efficiency and readiness for departure.