As others have said, there's no reverse-commuting trains which is a huge disappointment.
How long do you guys think until GO can add the reverse-commuting train times?
The new schedule maintains UPX's status quo - dedicated use of two of three tracks east of the Airport, leaving only one for GO. At an hourly frequency, there is just enough time for a westbound GO train to clear at the Airport to let an eastbound proceed; when that eastbound gets to Strachan, it clears just in time for the next westbound to proceed.
Using the tracks in this way, two-way service isn't possible during rush hours because the gap between trains going in the "prevailing" direction is much too short to permit a reverse move.
The most that can be accomplished (until we have a fourth track) is to interleave the counter-flow trains onto the UPX tracks. That is trickier because of the different acceleration/stopping profiles, headways and stopping points. That's why the two last new GO eastbounds skip stops - they have to use UPX tracks to stay clear of the first westbound rush hour GO trains. So long as they don't stop anywhere, they can 'go with the flow' without affecting UPX. (Etobicoke North serves only one track, so reverse rush hour stops just aren't happening there for the foreseeable future)
GO seems to be treading carefully with UPX, letting operations solidify - jugglers only add one new object at a time! GO could add semi-express reverse moves later in the day, and perhaps add stops at Bloor and Weston, but two non-stopping trains are likely as much as GO is willing to attempt for now. In particular, UPX is untested under winter conditions. Pushing too fast could lead to meltdowns that would really harm GO's credibility, so there is good reason for taking 'baby steps'.
Bottom line - For true two-way, all-stops reverse commuting - GO needs the fourth track. Some parts of that could be done in a year, some parts are clearly multi-year projects needing additional lead time. Realistically, it's five years away - and only if GO is actually getting that mobilised now.
- Paul