1,690 datasets found

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  • Wall Type or Fence

    This layer shows the location of Walls and Fences on the State Road Network. The Wall or Fence are a continuous vertical structure usually of brick, stone or wood, used as a...
  • Legal Speed Limits

    Legal Speed Limit (State and Local Roads) The maximum speed limit allowed under the provisions of the State Traffic Act and Regulations. Road speed limits are used to regulate...
  • Legal Speed Zones

    Speed Zones (State and Local Roads) This layer shows the location of Speed Zones on all public access roads found in the Integrated Road Information System (IRIS) and includes...
  • Line Marking

    This layer shows the location of Line Marking on all public access roads found in the Integrated Road Information System (IRIS). Line Marking is any kind of device or material...
  • Road Network

    This layer comprises road centrelines for all roads controlled by Main Roads (State Roads) and all roads controlled by Local Government (Local Roads) that are assigned road...
  • Control of Access

    Control of Access identifies the sections of state roads where the access to and from adjacent land and properties is controlled by Main Roads Western Australia. These road...
  • Kerbs

    This layer shows the location of kerbing on the State Road Network. Kerbs are a border of rigid material formed (concrete) at the edge of the carriageway. Kerbs may fulfil any...
  • Bike Count Sites

    The location of bike count sites in the Perth, Metropolitan Area. This layer provides the volumes for the latest count year. Bike volumes are collected on a continuous basis at...
  • Traffic Digest

    The location of traffic count sites across selected roads on the road network. This layer provides the average number of vehicles and heavy vehicles for the latest year of...
  • Signs - Warning

    This layer shows the location of regulatory signs & Main Roads Western Australia is the responsible authority. The term regulatory sign describes a range of signs that are...
  • Signs - Regulatory

    All regulatory signs under the responsibility of Main Roads Western Australia. The term regulatory sign describes a range of signs that are used to indicate or reinforce traffic...
  • Rail Crossings

    Freight or passenger rail network in Western Australia. Rail transport is a means of conveyance of passengers & goods by way of wheeled vehicles running on rail tracks. In...
  • Culverts

    This layer indicates the location of culverts managed and controlled by Main Roads Western Australia. A culvert is a drain or pipe that allows water to flow under a road,...
  • Floodway

    This layer indicates floodway's of the State Road Network in WA. A floodway is typically a longitudinal depression in a carriageway specially constructed to allow the passage of...
  • WAMSI 2 - Dredging Node - Project 4.7 - Defining Thresholds and Indicators of...

    An understanding of coral population dynamics (demography) is needed when designing and evaluating studies that aim to detect the effects of natural and anthropogenic mediated...
  • Focal Point Markers

    Focal Point Markers are signs placed on the left side of the road and read in the direction of travel. Focal Point Markers provides road users with a distance to larger town...
  • Intersections

    This layer shows intersections on the road network stored in the Integrated Road Information System (IRIS). An intersection is a road junction where two or more roads either...
  • WAMSI Node 1.1.2 - Spatial and Seasonal Variability in Microphytobenthos and ...

    Despite the apparent importance of microphytobenthos and macroalgal populations as primary producers, primary productivity data and particularly data investigating the controls...
  • Structures

    Layer of Structures (road and pedestrian bridges, rail bridges, sign gantries and tunnels), in Western Australia. This layer provides general inventory information for all...
  • WAMSI Node 1.1.3 - Shelf scale primary production and nutrient uptake dynamic...

    In May 2007 (the beginning of the seasonal increase in chlorophyll a concentration) we investigated the spatial distribution of primary production. C13 uptake was determined on...
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