The station consists of two separate sections, one for each line, at the same level and 150 metres apart. The north–south platforms, which opened in 1978, were originally planned as a separate station, but the TTC decided to join to the existing 1966 east–west station with a pedestrian tunnel containing a pair of long moving walkways. The cost of the moving walkways themselves became an issue when they became due for refurbishment or replacement, and they were shut down and ultimately removed in 2004, leaving the corridor as a simple underground walkway. The former location of the moving walkways remains visible because the tiles used to cover their removal are noticeably different. Warnings to hold the handrails are still embossed on the walls where the ends of the moving walkways were once located.