Think of this as a roadmap for navigating GO train construction work in October.

While GO remains ready to move people across the region, whether it’s to a Toronto FC game, the return of the Raptors, or visiting friends, there’s some important information to keep in mind if you’re planning on taking the Barrie, Kitchener, Stouffville, Lakeshore West Lines or the Union Pearson Express next month.

Here’s a snapshot of all the GO track construction happening during the month of October and what customers need to know to plan ahead.

Oct. 1 to 3: Barrie and Kitchener Lines

Beginning the evening of Oct. 1, construction on the Eglinton Crosstown LRT and Barrie GO Line will result in several temporary changes for Barrie and Kitchener GO train service.

On Saturday, Oct. 2 only, there will be no rail service between Union Station and Downsview Park GO. Train service will run between Downsview Park and Allandale Waterfront GO.

Also, during this time, the hourly service between Aurora and Union Station will be replaced by GO bus service. Replacement buses will depart earlier/later than train times. Bus service will not stop at Downsview Park GO, customers should use TTC services to get to and from Union Station.

Some Kitchener and Barrie Line trains will also leave at slightly different times, so it’s important to check the schedules before heading out.  

Customers can use the GO Transit trip planning tool here or find schedules here.

Oct. 9 to 11:  Stouffville Line

Beginning Saturday, Oct. 9 until the end of service on Monday, Oct. 11, there will be no GO train service on the Stouffville Line to accommodate important work on the tracks and GO stations along the Stouffville Line.

GO buses will replace trains between Union Station and Lincolnville/Mount Joy GO but will depart at different times than regular weekend trains.

GO buses will replace trains between Lincolnville/Mount Joy GO and Union Station but will depart each station 5-15 minutes earlier/later than the normal scheduled train times. Bus service will not service Milliken, Agincourt, or Kennedy GO stations, and will run express from Unionville GO to Union Station.

Milliken, Agincourt, and Kennedy GO customers can travel to Unionville GO and use route 71 to get to Union Station or they can take the TTC/YRT to or from Milliken, Agincourt, and Kennedy GO.

Customers can use the GO Transit trip planning tool here or find schedules here.

Oct. 22 to 25: Stouffville Line

Beginning Friday evening on Oct.22 until the end of service on Sunday, Oct. 24, there will be no GO train service on the Stouffville Line to accommodate important work on the Stouffville Line and at GO stations along the Line.

• The last southbound Mount Joy – Union Station train will depart Mount Joy GO at 3:35 p.m.
• The last northbound Union Station – Lincolnville train will depart Union station at 8:14 p.m.

GO buses will replace trains between Union Station and Lincolnville/Mount Joy GO but will depart at different times than regular weekend trains.

GO buses will replace trains between Lincolnville/Mount Joy GO and Union Station but will depart each station 5-15 minutes earlier/later than the normal scheduled train times. Bus service will not service Milliken, Agincourt, or Kennedy GO stations, and will run express from Unionville GO to Union Station.

Milliken, Agincourt, and Kennedy GO customers can travel to Unionville GO and use route 71 to get to Union Station or they can take the TTC/YRT to or from Milliken, Agincourt, and Kennedy GO.

Customers can use the GO Transit trip planning tool here or find schedules here.