Western Australia has 177 700 km of roads, of which declared Highways and Main Roads comprise 17 800 km.
The declared Highways and Main Roads form the primary road network for Western Australia. These roads are State Roads and collectively are known as the State Road Network. Main Roads Western Australia, a State Government agency, manages the State Road Network.
Roads which aren't part of the State Road Network are generally local roads managed by Local Government or minor roads managed by other State Government agencies, such as park roads managed by the Department of Environment and Conservation.
State Road Network Mapping System
The State Road Network Mapping System includes the mapping of roads with Control of Access and the Road Hierarchy. To find out if a road is a ‘State Road’ managed by Main Roads, if it has or does not have declared Control of Access or the hierarchy of a road, click on the following link:
The mapping for the State Road Network uses the ArcIMS electronic mapping system. For assistance on how to use the State Road Network Mapping system click on the following link.
Control of Access
Some roads in the State Road Network have statutory declared Control of Access, which revokes the general right of adjoining land to have direct vehicle and direct pedestrian access to these roads.
The maps do not show Control of Access for interchange ramps. All ramps linking to a Control of Access road have Control of Access.
Additions and modifications to the State Road Network and Control of Access occur from time to time and the following changes are under consideration:
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Extension of Tonkin Highway from Albany Highway to Thomas Road as a "Highway with Control of Access";
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Extension of Kwinana Freeway and Forrest Highway as "Highway with Control of Access";
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Extension of Mitchell Freeway from Hodges Drive to Romeo Road as "Highway with Control of Access";
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West Coast Highway from Curtin Avenue to Oceanic Drive as "Highway with Control of Access";
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Muirs Highway – Mt Barker Bypass as "Main Road with Control of Access";
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Menang Drive (Albany Ring Road) as " Highway with Control of Access"; and
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Geraldton Southern Transport Corridor as "Highway with Control of Access".
Road Hierarchy
A Road Hierarchy is a listing of roads that perform designated roles required of the road network. It also provides criteria to describe each road type.
The type designated to each road should represent the role that the road is intended to perform. It may not necessarily reflect the current conditions on the road.
More information on the Road Heirarchy is provided through the following links: