It then passes over a bridge for the main Canadian National Railways line that runs down to Union Station.

During weekday rush hours, daytime and early evenings, average service frequency is 5 to 7 minutes.

Overnight, this route operates with streetcars as 305 Dundas, a part of the Blue Night Network, with a 30-minute frequency.

[3] Just prior to 1966, the east and west ends of Dundas Street were covered by separate streetcar routes.

[4] When subway Line 2 Bloor–Danforth opened in 1966, the Harbord streetcar route was abandoned, and the Dundas streetcar route was extended eastward onto Dundas Street East and then north on Broadview Avenue to terminate at Broadview station.

There was still a branch to the City Hall Loop where every second eastbound Dundas streetcar used to terminate and turn back.

[8] Streetcar service was originally expected to return on March 29, 2020, but was delayed to complete upgrades to the overhead infrastructure for pantograph operation.