Albany Highway links Western Australia's capital city Perth with its oldest settlement, Albany, on the state's south coast. The highway travels through the southern Wheatbelt and Great Southern regions, and is designated State Route 30 for most of its length. Outside of Perth the highway is predominately a sealed, single carriageway with regular overtaking lanes in some undulating areas. Albany Highway commences at The Causeway, a river crossing that connects to Perth's central business district. The highway heads south-east through Perth's metropolitan region, bypassed in part by Shepperton Road and Kenwick Link, and continues south-eastwards through to Albany. It intersects several major roads in Perth, including the Leach, Tonkin, Brookton, and South Western highways. The rural section of Albany Highway connects to important regional roads at the few towns and roadhouses along the route, including Coalfields Highway at Arthur River, Great Southern Highway at Cranbrook, and Muirs Highway at Mount Barker.