PSMA Transport & Topography™

The PSMA Transport & Topography (T&T) dataset includes vector data for:

  • Street centrelines
  • Airports & Airport runways
  • Railway lines and stations
  • Hydrology and minor water boundaries
  • National Parks, Urban Parks and reserves

The topologically connected street vector data fills particular needs within navigation and routing. The complete set of T&T layers meets a range of demographic, spatial analysis and cartographic applications.

The street centreline layer includes a range of attribution columns.  Items of interest include:

  • the STREET_LOCALITY_PID links to the same column within PSMA G-NAF.  This facilitates applications such as “is 22 Smith St on a Local Road?”
  • to help answer the above question, the Street Line layer includes the Transport Hierarchy Code (THC).  The THC contains a three digit code that specifies whether the street is a local road, national highway etc.  For usage example, please refer the different coloured road layers in the right hand map
  • the Ground Relationship Code (GRC) identifies whether a given road segment is at ground level, above ground (e.g. an overpass) or below ground (e.g. a tunnel).  The GRC finds use within routing and navigation applications

For further details including licensing please contact us.

Inner Melbourne inc. Royal Botanical Gardens, Albert Park, Yarra River and streets
Above layers are sourced from Transport & Topography
Legend*:
Red lines – THC #301 (National or State highways)
Orange lines – THC #302 (Arterial roads)
Purple lines – THC #303 (Sub-arterial roads)
Cyan lines – THC #304 (Collector roads)
Light grey lines – THC #305 (Local roads)
Dark grey dashed lines – Railway lines
Black train symbols – Rail stations
Green regions – Greenspace polygons
Blue regions – Hydrology polygons

*THC refers to the Transport Hierarchy Code column within the Street_Line layer attribution data

Transport & Topography is ™ of PSMA Australia

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