We now know (publicly), that the service plans modeled out up 72 daily trains in the corridor. (total, when both direction of travel are considered)
A planned high-speed rail project between Toronto and Quebec City could dramatically increase the number of trains that travel along the corridor each day, according to internal documents.
www.ctvnews.ca
The base service plan modeled was hourly, but with departures up to every 30 minutes as demand warrants. According to Alto reps.
Though, if you map the 30 trains, per direction between Montreal and Toronto quoted in the article, you get 30 minute departures on a 15-hour span of service (6am-9pm)
The additional runs to get to 72, presumably are Montreal-QC, and/or partial corridor runs.
From the above:
View attachment 703885
There, that gives
@reaperexpress something to do with his free time, LOL I'm always here to help with that.