Perth has a road network with three freeways—Mitchell, Kwinana and Graham Farmer—and nine metropolitan highways. The Northbridge Tunnel, part of the Graham Farmer Freeway, is the only significant road tunnel in Perth.
Perth has a road network with three freeways—Mitchell, Kwinana and Graham Farmer—and nine metropolitan highways. The Northbridge Tunnel, part of the Graham Farmer Freeway, is the only significant road tunnel in Perth.