The diagrams illustrate how a new underground platform an reinforcements were added to the Toronto Go Train Station during and following construction.
Overall, in the redesign of the Go train station, the pedestrian walkway under the tracks was removed and replaced with two new levels: one for pedestrian traffic and one for shopping. In addition, the station’s supports were partially removed and rebuilt.Before construction, the station had two levels. The upper was where trains arrived and departed and the lower was a pedestrian walkway passing under the train. A large supporting pillar centred below the tracks, passed through the level below and was buried deep in the ground beneath it.
During construction, the bottom concourse was dug out and lowered to a
new depth exposing the base of the buried support column. A temporary support system was built while a section of the main support post was removed. It was then replaced and reinforced to include a new floor level between the upper and lower decks. The lowest level provided space for shops and the one above it remained a walkway for pedestrians to pass under the tracks. The upper track level was visibly unchanged