The Queensway is a divided roadway from Roncevalles westerly until 600 metres of the South Kingsway (accessed by ramps) with its centre median dedicated to streetcar service.

There is a road allowance with hydro lines, cutting into the Mississaugua Golf & Country Club on the shores of the Credit River.

While the Highway 27-QEW interchange was reconstructed in the late 1960s, the QEW was temporarily diverted to an overpass that would later be permanently used for the Queensway.

The use of "Queensway Avenue" was likely to avoid confusion with adjacent exit signs for the parallel Queen Elizabeth Way (QEW) at the last collector-to-express transfer (and vice-versa), as after that point, the collector lanes had an off-ramp to the Queensway but no direct access to the QEW (with the express lanes being the opposite).

The project included a streetcar right-of-way in the middle of the Queensway from Parkside Drive to the Humber River.

To build the Parkside Drive to Ellis Avenue section, the Metro government bought 7.3 hectares (18 acres) of High Park from the city.

This was in contravention of stipulations by original High Park owner John Howard that the lands be used for parkland only.

[citation needed] The streetcar right-of-way (ROW) along the Queensway opened on July 20, 1957, together with the new Humber Loop.

Construction of the Gardiner Expressway had forced the abandonment of streetcar tracks along Lake Shore Boulevard between Sunnyside and the Humber River.

[14]: 5  On January 25, 2023, the newly extended Queensway right-of-way opened to streetcars between KQQR and Sunnyside Loop.