Burnhamthorpe Road

Burnhamthorpe Road

Halton Regional Road 27
Burnhamthorpe Rd. within Mississauga
Maintained by	City of Toronto City of Mississauga Region of Halton Town of Oakville
West end	Tremaine Road (Continues west as No. 1 Side Road)
Major junctions	Bronte Road Neyagawa Boulevard William Halton Parkway. (1st) Trafalgar Road William Halton Parkway. (2nd) ----Subsumed by W.H. Pkwy.---- Ninth Line Winston Churchill Boulevard Erin Mills Parkway Mavis Road Hurontario Street Cawthra Road Dixie Road  Highway 427 Kipling Avenue
East end	Dundas Street
Nearby arterial roads ← Lower Baseline Eglinton Avenue Dundas Street Bloor Street →

Burnhamthorpe Road is a major arterial road in the cities of Toronto and Mississauga, Ontario; beginning at Dundas Street (from which it initially angles away from before running parallel with), near Islington Avenue, running west and becoming a rural road in the Town of Oakville, where it terminates (after breaking) at Tremaine Road, where it changes name.

Unlike most major streets originating in Toronto and continuing into the "905" suburbs, only a short portion is located in Toronto and the street is strongly Mississauga-centric. Also, although Burnhamthorpe is commonly seen as the latter city's main east-west street, the parallel arteries of Dundas Street and Eglinton Avenue are (with the notable exception of the City Centre area) busier and have heavier commercial uses along them overall^{[citation needed]}.

The north side of the right-of-way on the street's eastern half through Mississauga is unusually wide as the result of being reserved for either a light rail transit line, and later as a potential route segment of the proposed GO-ALRT network, neither of which were built.^[1][2] The reserve was converted into a bicycle trail,^[3] with another transit facility (the Mississauga Transitway) being constructed along the Highway 403 corridor farther north instead.

In Mississauga, the street, unlike most other arterial roads in the regional municipalities surrounding Toronto proper, is not a regional road. However, in Oakville it is signed as Halton Regional Road 27 as far west as Neyagawa Boulevard.