Advertising doesn't provide much revenue for the TTC. Check out the budget.
In 2018, that was $28.35m. Around the same as many of the add-ons that TTC has provided (2 hour transfer, under 12 free, etc).
Updated November 17, 2017 at 6:30 pm The TTC Budget Committee met today and considered the draft 2018 Operating Budget. Between the original release (described later in this article) and today̵…
stevemunro.ca
That's all advertising. If as a city, we said we don't want streetcars wrapped, that could easily absorbed.