"1971-12-04" . . . "Ontario Highway 427" . . . . . "Airport Expressway" . . "427" . "Highways 427" . . . . . . . . . "Highway 427" . "Ontario Highway 427" . . . "North" . . "Highway 27" . . . "Highway 427" . . . . . . . . "South" . . . "427" . . . "Hwy 427" . . "Fwy" . . "27000.0" .