- Stouffville GO trains will not offer service to or from Union Station on Saturday, October 14, Sunday, October 15, and Monday, October 16.
- On Saturday, October 14, and Sunday, October 15, there will be two morning GO trains departing Old Elm and terminating at Kennedy GO. They are scheduled for 7:16 a.m. and 8:16 a.m.
- On Monday, October 16, morning trains will leave Old Elm at 5:16 a.m., 6:16 a.m., 6:46 a.m., 7:16 a.m., 8:16 a.m. and 9:17 am., all ending service at Kennedy GO.
- Metrolinx is recommending that riders allow extra time to use the TTC from Kennedy to Union, or utilize the Richmond Hill line for direct trips.
- Metrolinx will be conducting essential maintenance and Stouffville GO Expansion work during this time, which cannot be done while trains are in operation.
- They will also be making progress on a track shift in the Don Yard as part of the Ontario Line project.
- As service interruptions may change, and for return trips, riders should use Triplinx or GO’s Trip Planner and check local service updates on these days prior to travelling.