The Lakeshore West GO service will be seeing schedule changes on weekends starting May 4 that will run until June 9.
Trains will be running every 15 minutes between Oakville GO and Union Station and every hour between Oakville GO to West Harbour GO.
Additionally, some trains on May 4 and 5 between Aldershot GO and West Harbour GO will be replaced by GO buses instead, which may cause delays, and services will run as normal after 1 p.m. on May 18 and 20.