The A Line is on the lower platform, and the C Line is on the upper platform.
The two levels are connected by stairs/escalators/elevators via a mezzanine.
Ticket machines are located on street level and the mezzanine.

A spur track connects the northbound A Line just south of the station to a pocket track on the C Line, allowing trains to transfer between the two lines when necessary, usually to allow C Line trains to access the A Line maintenance yard.
This track is not used for revenue service.
The A Line is on the lower platform, and the C Line is on the upper platform. The two levels are connected by stairs/escalators/elevators via a mezzanine. Ticket machines are located on street level and the mezzanine.
A spur track connects the northbound A Line just south of the station to a pocket track on the C Line, allowing trains to transfer between the two lines when necessary, usually to allow C Line trains to access the A Line maintenance yard. This track is not used for revenue service.
Willowbrook/Rosa Parks station