According to
@reaperexpress 's
wonderful schedule archive, there were ten return trips each day when Covid hit. (I thought I remembered an eleventh, but the schedule shows ten)
CPKC's operations are pretty much the same seven days a week, although not every freight train in the plan runs all seven days.
I am confident that ML knows exactly what CP might require to add more trains (which they likely have no obligation to do under the existing service agreement). With added track, it is likely possible. But we should not assume that CP can accommodate a bigger service window just because they have quiet spells.
It's like when your neighbour asks to borrow your lawn mower when theirs has broken. Most people likely reply, "Sure, any time". But that's not license to come and habitually borrow it every weekend.
The issue may well also include things not related to CPKC eg added security, cleaning, etc that ML would have to add to open stations at extended hours. And crewing, which remains tight.
- Paul