Metrolinx says infrastructure upgrades are expected to impact weekend service on a few GO Train lines, including the UP Express service.
Lakeshore West, Lakeshore East, and Barrie GO lines will all be impacted by the upgrades starting the weekend of Sept. 8-9.
Metrolinx said the service on the Lakeshore East and West lines will run hourly and will bypass Mimico GO Station entirely. They said customers who regularly use that line are encouraged to use the Long Branch GO Station or the TTC. They also said customers travelling from Exhibition will have to transfer trains at Union Station. Travel times east or west are expected to be 10-15 minutes longer.