Transit Toronto

The City of Markham is hosting the Ontario Honda Dealers Indy for the first time from Friday, August 14 until Sunday, August 16. The new venue for the event is the area around Unionville GO Station, significantly impacting GO Transit and York Region Transit services.

To accommodate event organizers while they build the race track, the Region of York is closing

• Kennedy Road [Regional Road 3] between Unionville Gate / South Unionville Avenue and YMCA Boulevard / Helen Avenue

from 9 p.m. Wednesday, August 12 until 6 a.m. Monday, August 17.

During and after the event, while the race team tears down the event infrastructure, the Region is also closing

• Kennedy between north of Duffield Drive and Unionville / South Unionville

from 9 p.m. Wednesday, August 12 until 6 a.m. Monday, August 17.

Before, during and after the event, the City is closing

• Enterprise Boulevard between Main Street Unionville and east of Andre de Grasse Street and
• University Boulevard between Enterprise and YMCA boulevards

from 9 p.m. Wednesday, August 5 until Friday, August 21.

The City is also closing:

• YMCA Boulevard between University Boulevard and the Unionville GO Station access route

from 9 p.m. Monday, August 10 until 6 a.m. Monday, August 17.

And, the City is closing:

• Main Street Unionville south of Highway 7,
• Unionville Gate and
• other streets near Unionville GO Station

from 9 p.m. Wednesday, August 12 until 6 a.m. Tuesday, **August 18.

As preparations continue for the race, GO Transit passengers can expect impacts to parking, station access and bus service at Unionville GO Station, including a temporary full station access closure starting 8 p.m. Wednesday, August 12.

York Region Transit has already started detouring some of its buses to accommodate event preparations. It will detour buses along more routes, starting August 12.

The TTC is closing Line 1 Yonge - University subway between Lawrence West and St George stations earlier than usually Monday, August 10 until Thursday, August 13. Line 1 subway trains operate only between Vaughan Metropolitan Centre and Lawrence West stations and between Finch and St George stations after 11:59 p.m. those evenings.

Shuttle buses partially replace subway service. The buses drop off or pick up passengers at stops near each station on that part of the line. TTC staff are available in each station to direct you to the shuttle-bus boarding and offloading locations.

(Or, consider a shuttle-bus alternative.)

Most stations on this section of Line 1 remain open, so you can pay fares, load PRESTO fare cards, buy PRESTO tickets and connect to TTC buses, streetcars or Line 2 Bloor - Danforth and Line 5 Eglinton trains. However, Glencairn and Dupont stations are closed. Note that the TTC is also closing the Heath Street West access to and from St Clair West Station and the Kendal Avenue access to and from Spadina Station after 11:59 p.m.

While this part of Line 1 is closed, TTC crews are maintaining the tracks.

The TTC is closing this part of Line 1 at least twice more during August:

• Friday, August 14 — Sheppard West to St Clair West — close early — track work.
• Saturday, August 15 and Sunday, August 16 — Sheppard West to St Clair West — track work.

According to a TTC news release, “While the TTC does most subway maintenance after service each night, it continues to require weekend and early weeknight closures to complete critical infrastructure and state-of-good-repair work.”

GO’s route 18 is one of the system’s oldest bus routes, launched in September 1970 to connect the west end of the Lakeshore GO Train to Hamilton. Now that train the line has been extended to Hamilton, and the route 11 has been launched extending service to Brock University, the route 18 has become much less frequent, though it still serves to connect some Aldershot-bound GO trains to the Hamilton GO Centre and vice versa.

But that’s during the day. Late at night, or early in the morning, branches of the 18 run the full Lakeshore West line, providing a nominal owl service for the western half of GO Transit’s busiest train line. On the morning of Sunday, June 7, 2026, Transit Toronto editor James Bow woke up really early to head to West Harbour GO Station to ride one of the few 18J branches, serving Hamilton GO Centre, and most of the stations on the Lakeshore West train line. This timelapse video is the result. Check it out, and enjoy the backing music by Luke Holizna.

To accommodate construction along the 01 Lakeshore West line this weekend, GO Transit is also also adjusting schedules for trains along the 09 Lakeshore East line.

This Saturday, August 8 and Sunday, August 9, trains start trips in Durham College Oshawa GO Station two minutes earlier than usually.

Metrolinx continues building the Ontario Line subway between Exhibition Place / Ontario Place and the area near the former Ontario Science Centre, through downtown Toronto.

GO Transit trains along the 01 Lakeshore West line operate every 30 minutes this Saturday, August 8 and Sunday, August 9 during Metrolinx construction for the future subway near Exhibition GO Station.

Saturday, August 8

• Trains operate every 30 minutes.
• The Niagara-bound train that usually starts in Union at 7:22 p.m. starts, instead, 14 minutes earlier at 7:08 p.m.
• The Toronto-bound train that usually starts in Niagara Falls VIA / GO Station at 10:10 p.m. won’t stop in Exhibition.

Sunday, August 9

• Trains operate every 30 minutes.
• The Niagara-bound train that usually starts in Union at 7:22 p.m. starts, instead, 14 minutes earlier at 7:08 p.m.
• The westbound train that usually leaves Exhibition at 12:16 a.m. leaves, instead, 20 minutes later at 12:36 a.m.

This weekend, crews are erecting the steel structure for the new concourse for the Ontario Line subway at the future Exhibition Station.

The City of Toronto is closing

• Dundas Street West between Runnymede and St. Johns roads

to accommodate contractors who are lifting a crane at a construction site.

The TTC is detouring buses along these routes, while the street is closed:

• 30 High Park North;
• 40 Junction - Dundas West; and
• 340 Junction overnight.

Crane activity on Dundas West and the resulting TTC detours continue until August 10 (4 a.m.)

Starting Tuesday, August 4, Brampton Transit implemented service changes to schedules along various routes. It adjusted service “for operational changes” by updating schedules, improving service reliability or aligning service with ridership demand.

Lots of Greek cuisine and other culinary treats, community festivals and farmers’ markets: special events in Brampton, the Downsview area of Toronto, Hamilton, the Humber Bay Shores and Malvern areas of Toronto, Milton, the Sutton area of Georgina, central Toronto and the Unionville area of Markham affect transit services this weekend — from Wednesday, August 5 until Sunday, August 9.

The TTC is advising passengers that, from 11 p.m. Thursday, August 6 until 4 a.m. Friday, August 7, it’s detouring streetcars along several routes “due to streetcar infrastructure work.” Specifically, it’s detouring cars along these routes around the work zone:

• 301 Queen overnight;
• 501 Queen; and
• 511 Bathurst.

Shuttle buses replace the cars:

• 301 / 501 Queen shuttle buses; and
• 511 Bathurst shuttle buses.

Starting Wednesday, August 6, the City of Toronto is closing:

• Markham Road between Ellesmere Road and Brimorton Drive

to accommodate contractors who are lifting a crane at a construction site.

The TTC is detouring buses along these routes, while the street is closed:

• 102 Markham Rd; and
• 902 Markham Rd express.

Crane activity on Markham Road and the resulting TTC detours continue until August 9.