State Maintained Roads

Dataset Number1639
Dataset TitleState Maintained Roads
CustodianData Authority: Department of Planning, Transport and Infrastructure
Data Provider: Department of Planning, Transport and Infrastructure

Description

DescriptionThe State Maintained Roads dataset is derived from the TopoRoad dataset that is jointly maintained by DEWNR & DPTI. The Common Road Referencing System (CRRS) assigns a unique number to all roads of interest to Department for Transport, Energy and Infrastructure (DPTI) (currently or previously maintained) and defines the start, direction and end of the road for linear referencing (i.e. driven distance) purposes. The system defines reference points with known linear distances (known as road running distance). DPTI asset information is recorded in databases referenced using CRRS standards. This data set is for the Roads Maintained by the State or Federal Government.
UsageUsed as a spatial reference to the location of roads and attributes which DPTI maintains.

Data Quality

LineageThe dataset has been compiled from the road centreline data.
Completeness100%
Positional AccuracyAccuracy of road alignments varies throughout the coverage depending on method of capture. In general, roads captured through DCDB processes in urban areas are generally within +/- 5 metres of their true position. In rural areas the accuracy is generally within +/- 25metres. In pastoral regions sourced from Geoscience Australia the accuracy is of the order of +/- 125 metres. A program Condition data collection surveys including GPS alignments are used to improve road alignments.

Geographic Extent

Extent NameSouth Australia
Min Easting or Longitude129
Min Northing or Latitude-38.25
Max Easting or Longitude141
Max Northing or Latitude-26

Dataset Status

Initially Acquired2000
Last Updated
Update FrequencyWeekly
Maintenance MethodDerived from DPTI Roads
AusGOALCC BY (Attribution)

Attributes

TableNameField AliasData TypeDescription
Attribute TableCRRS_ROAD_NO textUnique identifier as defined by DPTI, for roads which DPTI are responsible for maintaining or may have in the past, as well roads which may be of interest to DPTI. NB Roads which have been assigned a road number may have no attribute information recorded in the CRRS.
Attribute TableSTART_RRD DoubleDriven length (road running distance) in kilometres from the start of the road to the start location of the feature or section of road. All roads have a designated start, end and direction in CRRS. If both Start and End Road Running Distance equal zero no Information exists in CRRS.
Attribute TableEND_RRD DoubleDriven length (road running distance) in kilometres from the start of the road to the end location of the feature or section of road. All roads have a designated start, end and direction in CRRS. If both Start and End Road Running Distance equal zero no Information exists in CRRS.
Attribute TableRDNAME textConcatenated road name and abbreviated type. Where the TOPO Roads name is null, the name associated with the road number in the CRRS is used.
Attribute TableSIDE textCarriageway/Side for the designated section of road. All CRRS roads have a defined direction and the side is defined with reference to the increasing road running distance, not driving direction of the road.
Attribute TableROAD_CATEGORY_CODE textRoad funding classification.
Attribute TableAUSTROADS_CLASS_CODE textAUSTROADS functional road classification, designating the primary role of the road.
Attribute TableSPEED_LIMIT short integerLegal Speed limit along the designated section of road. Speed Limits are captured from the Approval documentation and may not coincide with the posted speed limit signage.
Attribute TableSEALED textIndication whether the road is sealed or unselaed. Blank indicates no information in relevant databases.
Attribute TableROAD_CLASS textRoad Classification stereo type defining DPTI road usage.

Contact Information

OrganisationDepartment of Planning, Transport and Infrastructure
Safety and Service Division
Postal AddressGPO Box 1533

ADELAIDE
5001
Emaildpti.gisoffice@sa.gov.au