My comments on the new service changes:
Lakeshore West
The weekday AM Niagara train now departs Niagara Falls at 06:39, which is far more reasonable than the old 05:23 departure time. Now it actually runs during a time of day when there is congestion on the QEW. The trip now is scheduled for 2h21, a slight improvement from the 2h27 pre-pandemic. For some reason these trip is completely missing from the Lakeshore West timetables. The weekend trains had already been missing from the tables for a few years now, but now the weekday ones are missing too, despite clearly following the same clockface stopping pattern for express trains:
September 2021 AM Peak schedule, I have filled in the unlisted train trip in green:
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It's also great to see the Hamilton Centre trips running express again.
As I expected, peak period service is now 4 tph local + 2 tph express, rather than the 2 tph local + 4 tph express we had pre-pandemic.
Unfortunately, evening service continues to only run hourly on weekdays, which is a huge drop after the 6 tph peak and 4 tph counterpeak service. On weekends, service maintains 2 tph until about midnight.
I'm very pleased to see the new Route 18K which runs every 2 hours between Hamilton Centre to St Catharines, including a timed connection to trains at West Harbour.
I'd previously suggested that Route 12 be rerouted along this exact routing to downtown, but this new route achieves a similar effect. There is a 6 minute transfer at Grimsby P&R for eastbound passengers from Burlington on Route 12 transfering to Route 18K toward downtown St Catharines or Brock, but this unfortunately means nearly an hour transfer for passengers heading from Hamilton on Route 18K to Niagara Falls on Route 12. Westbound, the transfers from Niagara Falls (route 12) to Hamilton (route 18K) and from St Cathrines/Brock (route 18K) to Burlington (route 12) are both about 30 minutes.
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I think that they should have taken this opportunity to drop Beamsville (Ontario St. @ QEW) P&R from route 12. That would cut about 7 minutes off the travel time, allowing Route 12 to provide more competitive travel times between Toronto and Niagara Falls, while route 18K provides local service in between. Beamsville P&R generally annoys me since it's only accessible by car anyway, so "local access" is not a valid justification for wasting everyone's time getting off the highway and driving around in circles, often without dropping anyone off or picking anyone up.
I also would have used St Catherines Bus Terminal as the downtown St Catharines stop rather than St Catharines Station, since it has far better bus connections and far more destinations nearby. I suppose they wanted to provide more options for people who parked at St Catharines Station to take the peak-period GO train.
Kitchener Line
There are now 11 daily round trips between Kitchener and Toronto (10 GO + 1 VIA), which is more than there has ever been before. The AM peak service from Kitchener now extends until 8:39, compared to 7:57 pre-pandemic. This is very helpful since buses leaving Kitchener or Guelph around 8:00-8:30 would still get stuck in rush hour traffic.
My marked-up version of the September 2021 AM Peak timetable, highlighting changes relative to August 2021.
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The new trips also make a totally practical commuter schedule for people living in Kitchener and working in Guelph.
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The travel time for express trips is now 1:41 eastbound, which is the fastest it has ever been. It is 4 minutes faster than pre-pandemic, and 9 minutes faster than before Metrolinx started the current track upgrade project. This nearly achieves the 10 minutes which were promised as part of that project. However, the travel time between Kitchener and Georgetown is still the same as in the September 2020 schedule, so I'm not sure if the recent work in Guelph has been accounted for yet.
With an average speed of 61.2 km/h, the Kitchener express is now the fastest peak-period train service in the GO network. It is also slightly faster than the fastest AM peak service pre-pandemic, which was the Lakeshore East express.
There is now regular counter-peak service between Union and Bramalea, operating every 30 minutes in the AM Peak, and every 60 minutes in the PM Peak.
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