Route Description
Highway 409 serves as a direct link between Highway 401, Highway 427, and Pearson International Airport. While it is not intended as a commuter route, there are several exits serving the industrial areas of Etobicoke centred around the highway. Highway 409 also serves as the only connection between westbound Highway 401 and northbound Highway 427, as no access is provided at the 401–427 interchange.
Highway 409 begins at Airport Road as the knotted flyovers from Toronto Pearson Airport converge into the freeway from the various terminals. Through this section to Highway 427, the highway is maintained by the Greater Toronto Airport Authority (GTAA) and has a posted speed limit of 60 kilometres per hour (37 mph).
As the highway passes under Highway 427, it turns right and takes on an east-west orientation. It passes over Carlingview Drive, and begins to descend into a trench. It passes beneath Highway 27, two railway spurs, and Iron Street before returning to level grade. Around the interchange with Martin Grove Road, the freeway twists slightly to the left and right between factories and warehouses.
At its eastern terminus, Highway 409 crosses Kipling Avenue and splits into two carriageways. The eastbound lanes cross Highway 401 on a flyover and become that highway's collector lanes, while the westbound collector lanes diverge and become the westbound lanes of Highway 409.
Read more about this topic: Ontario Highway 409
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