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Ontario Highway 5A 
Summary
Ontario Highway 5A (1937–1953), as a former Connecting Link in the Ontario Provincial Highway Network, bypassed portions of Ontario Highway 5 within what is now Toronto. There were two discontinuous segments:
- Dundas Street, Scarlett Road, and St. Clair Avenue from Highway 5 (Islington) eastward to Highway 11 (Yonge Street, Toronto).
- Eglinton Avenue from Victoria Park Avenue (then Dawes Road, Scarborough) eastward to Ontario Highway 2 (Kingston Road); renumbered as Highway 109 in 1953.