urbanclient
New Member
I am wrong and you are definitely correct, I incorrectly went off the 42 day/6 week cycle as seen in the last X months:The next TTC service change date is Sunday, August 31, 2025. TTC service changes are typically implemented approximately every four to six weeks, roughly 10 times a year.
Here's a list of the upcoming service change dates in 2025:
- Sunday, August 31, 2025
- Sunday, October 12, 2025
- Sunday, November 16, 2025
- Sunday, December 21, 2025
- Sunday, January 4, 2026
TTC Scheduled Service Summaries
The TTC publishes its current service summaries on its Planning page, but it’s not unusual to want to look at the old versions for comparison and history. As a convenience to readers, here ar…
Also I was wrong about the 14+30+90 day horizon, it's actually more like 14+30+14+90 (trial running, revenue service demo, substantial completion confirmation/certification, 90 day bedding-in) so max of 148 days from announcement of the start of trial running. This 148 day horizon comes directly from Metrolinx sources from previous posts and the City of Toronto source below. But it seems like they are waiting until substantial completion is confirmed before making a 90 day opening announcement. Worst case if trial running has not even started, then 148 days puts us at December 23, 2025. Which I think we can all agree pushes opening to early January 2026, if not spring 2026.
""Substantial Completion", which is expected to be 14 days after the completion ofRevenue Service Demonstration. Substantial Completion requires an IndependentCertifier to confirm (or certify) that CTS has demonstrated the successful delivery of Line5 to a level of completion suitable for revenue service, consistent with the requirementsin CTS’ contract with Metrolinx."
Source: https://www.toronto.ca/legdocs/mmis/2025/ttc/comm/communicationfile-193597.pdf
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