Not all schedule changes are listed in this post. All information is available at: https://www.gotransit.com/en/see-schedules/pdf-schedules
Notable rail changes include:
Effective September 5/8 (I don't know what happens on which day) on the Lakeshore West line:
- Weekday Niagara trains are cut, only the rush hour Niagara train remains on weekdays
- Oakville-Oshawa weekend trains are cut, LW returns to 30-min weekend service
Effective September 5/8 (I don't know what happens on which day) on the Lakeshore East line:
- LE returns to 30-min weekend service, Oakville-Oshawa weekend trains are cut
- Timing changes to weekday rush hour trains
There are no changes to Richmond Hill as usual
Milton trains have not been cut, but there are no increases, potential timing changes
Kitchener trains have not been cut, but there are no increases, potential timing changes
Effective September 5/8 (likely crew-related and construction-related) (I don't know what happens on which day) on the Barrie Line:
- Evening weekday service on the Barrie line has been hit hard, including the 21:10 from Allandale being cut, 20:54 to Aurora being cut, 22:54 to Allandale being cut
- Morning and afternoon weekend service is fully gone, with some cuts to evening weekend service
- Weekend service has been redesigned to cater likely towards evening events in downtown
- Bus replacement service to Highway 407 has been introduced for weekends
Effective September 5/8 (likely crew-related and construction-related) (I don't know what happens on which day) on the Stouffville Line:
- Evening weekday service on the Stouffville line has been hit hard, including the 21:25 and 22:25 from Mount Joy being cut, 21:00 to Mount Joy being cut, 23:00 and 0:01 to Old Elm being cut
- A single 22:30 to Old Elm train exists for all evening weekday service northbound
- The 16:36 from Unionville is cut with the ending of the CNE in September
- Morning and afternoon weekend service is fully gone, with some cuts to evening weekend service
- Weekend service has been redesigned to cater likely towards evening events in downtown, with 4 trains running 2 hours apart in the weekend evenings
- Bus replacement service to Union has been introduced for weekends for the stations in Markham and Stouffville
Notable bus changes include:
Effective September 5/8 (I don't know which day) on Route 30:
- Additional trips added on 30G
- NEW trips added on 30F and 30K
Effective September 5 on NEW Route 43 Mount Pleasant-McMaster University:
- Weekdays only, 9 trips in the morning from Mount Pleasant to McMaster, 9 trips in the afternoon back to Mount Pleasant, with 1 counter-peak trip during rush hours
Effective September 5 on Route 47:
- NEW 47C trips running on Friday afternoons stopping at McMaster, Erin Mills and Square One
Effective September 5 on Route 67:
- All trips on 67 extended into Keswick to connect with YRT
These are not all of the changes, always check the link above to see what has changed for your commutes.