great! but talk about useless times! You think they would have put their busiest trains as express trips.. (typically ~8:30-9am arrivals in the morning and 4:30-5pm departures in the afternoon)
These 4 express trips all solidly fall outside of normal commute hours, particularly the evening trains.
The good news is that Metrolinx seems to now be introducing trickles of new trips every few weeks, presumably as engineers graduate from training, so hopefully they can incrementally fill in the core hour express route trips soon.
Although it's not the busiest period of the day, it may well have been the most crowded. In the previous eastbound timetable, service was every 30 minutes until the 08:00 arrival at Union, then every 15 minutes from 08:00 to 09:00 (inclusive), then every 30 minutes for the rest of the day. Increasing service from 2tph to 4tph from 07:00 to 08:00 is probably more critical than increasing service from 4 tph to 6 tph from 08:00 to 09:00.
In the PM, westbound service was every 15 minutes from 16:15 to 17:45. The two new express trips fill the first 30-minute gaps before and after that period.
Adding in those express trips didn't require any changes to existing trips, but restoring 6 tph will require a bigger change to the schedule. Half of the current trains will become expresses, and then new trains will be added between Oakville and Union to fill the local slots they currently occupy.
It will be interesting for GO to see how many current peak-period riders shift their work schedules to make use of those shoulder-peak express trips.
If you look at the pdf it's 4-5 mins earlier
You're right, the PDF timetable and the trip planner show the departure time as 05:21 from London, while the announcement says 05:16.
The AM departure time changes are:
6 min later at London
6 min later at St Marys
4 min later at Stratford
1 min later at Kitchener
No changes east of Kitchener
So the travel time savings are:
2 min St Marys to Stratford,
3 min Stratford to Kitchener,
1 min Kitchener to Guelph.
This increases the average speed between Kitchener and Guelph from 74 km/h to 79 km/h, and increases the average speed from London to Kitchener from 38 km/h to 39 km/h.
Hopefully the 38 km/h average in October 2022 was rock bottom for the London-Kitchener line, and average speeds will only improve from here.