Ward, Brace. 403: A Trouble-Free Way. The Toronto Star. January 4, 1981: A16. It was designated in 1962, when traffic studies showed that additional "freeway capacity" would be required to handle traffic volumes between Hamilton and Toronto.
700 Million Freeways West of Metro. Globe and Mail 123 (36,335) (Toronto). May 26, 1966: 1, 25. The program calls for construction of a 23-mile section of Highway 403, from Burlington to the Macdonald-Cartier Freeway, west of Highway 27; a 12-mile freeway from Belfield Drive in Etobicoke, running northwesterly around Brampton to Georgetown; and a five-mile freeway from Richview Road in Etobicoke to Woodbridge.|section=被忽略 (帮助)
New Highway Opens. Toronto Daily Star. August 18, 1980: A13. A new 3.6-kilometre stretch of Highway 403 was to be opened to traffic this morning, as part of a plan to divert traffic from the Queen Elizabeth Way through Mississauga. The new section will run from Highway 401 southbound to the Eglinton-Cawthra Rd. interchange.
Dexter, Brian. Highway 403 Section Open to Traffic Today. The Toronto Star. November 17, 1981: A18. It runs west from Erin Mills Parkway north of Burnhamthorpe Road, to Highway 5 in Oakville, where a spur to the Queen Elizabeth Way at Ford Drive has been used by traffic for several months.
Ontario Government Notice. The Globe and Mail (Toronto). February 17, 1982: C4. The Ministry of Transportation and Communications has undertaken a Preliminary Design Study to examine the upgrading of Highway 401 from Renforth Drive to Second Line West and Highway 403 from Highway 401 to Highway 10. The Preliminary Design Study has also examined the construction of the Highway 403 Extension, from Cawthra Rd. to Dixie Rd. In the mid 1970's some preliminary planning was completed for an express-collectors system on Highway 401 and 403 within Mississauga.|section=被忽略 (帮助)
Transportation Capital Branch. Provincial Highways Construction Projects. Ministry of Transportation and Communications. 1983–1984: XI. ISSN 0714-1149.
Transportation Capital Branch. Provincial Highways Construction Projects. Ministry of Transportation and Communications. 1985–1986: IX. ISSN 0714-1149.
Ed Fulton. Remarks... At the Opening of Highway 403 (Between Highways 53 and 401) (新闻稿). Woodstock, Ontario: Ministry of Transportation. September 26, 1988.
Transportation Capital Branch. Provincial Highways Construction Projects. Ministry of Transportation and Communications. 1986–1987: IX. ISSN 0714-1149.
Transportation Capital Branch. Provincial Highways Construction Projects. Ministry of Transportation and Communications. 1987–1988: IX. ISSN 0714-1149.
Boyle, Theresa. Rae Announces 407 Extension. The Toronto Star. April 1, 1995: A12. Rae also announced yesterday that the province will ask for private-sector proposals to design and construct the Burlington–Oakville link of Highway 403 as part of Highway 407.|section=被忽略 (帮助)