This is a preliminary version based on GTFS data (the standard format for transit schedules used by online services) and some Service Advisories on the TTC site. I expect to receive the full list of September service changes early in the week of August 28 and will update this article accordingly including the usual detailed comparison of service levels.

Updated August 26 at 9:15 pm: 512 St. Clair updated to reflect complete bus replacement for work at various locations on the line.

Updated August 27 at 4:30 pm: At 10:30 am on August 28, the Mayor, TTC Chair and CEO will hold a press conference at STC Station to “outline how the TTC will increase service beginning September and into the fall.”

Updated August 29 at 5:30 pm: Due to changes in the Metrolinx schedule for work on the Lake Shore East Queen Street bridge, there has been a further revision of planned service. Please see this post for details.