Trans-Canada Highway

The Trans-Canada Highway (French: Route Transcanadienne) is a federal-provincial highway system that travels through all ten provinces of Canada. It is, along with the Trans-Siberian Highway and Australia's Highway 1, one of the world's longest national highways, with the main route spanning 8,030 km (4,990 mi). The system was approved by the Trans-Canada Highway Act of 1949, with construction commencing in 1950. The highway officially opened in 1962, and was completed in 1971. The highway system is recognizable by its distinctive white-on-green maple leaf route markers.

Throughout much of Canada, there are at least two routes designated as part of the Trans-Canada Highway. For example, in the western provinces, both the main Trans-Canada route and the Yellowhead Highway are part of the Trans-Canada system.