smallspy
Senior Member
They seem to have drifted from this standard, but from my observations, it used to be that in the corridor 2 digit trains were for weekday (and weekend if it used the same schedule) trains and were numbered as follows, with even train numbers for eastbound and odd numbers for westbound:
2x - Quebec-Montreal3x - Montreal-Ottawa4x - Ottawa-Toronto5x&6x - Montreal-Toronto7x - Toronto-Windsor8x - Toronto-London/SarniaIf a train only ran on weekends, it would be 3 digits with the same format but prefixed by a 6 (Saturday is day 6 on VIA schedules).
The problem was, that meant there was a limit of 5 trains a day each way for all routes (except Montreal-Toronto which could have 10), so lately they have been also using the 6 prefix to allow more than 5 trains a day. They also seem to have moved the 5x numbers to Ottawa-Toronto. There also seem to be other exceptions.
It will be interesting to see what VIA does with train numbers after HFR.
You also forgot about the Niagara Falls trains - they were/are 9X.
There have also been variations on this numbering scheme - when they started operating the services through Ottawa, those through-scheduled train were given numbers in the 5X, while the ones that weren't used 3X, 4X and 6X on those respective corridors. While there are (were?) very few through-routed trains before the lockdown, many of the trains running on that schedule still carried 5X numbers.
There have also been midweek trains given a 6-prefix as they've run out of 2-digit numbers on some of the routes.
Dan