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| Dataset | |
| Title | Road Centerlines |
| Custodian | Geoscience Australia |
| Jurisdiction | Australia |
| Description | |
| Abstract |
This dataset contains road centrelines for the Cocos (Keeling) Islands derived from topography. The coverage is the same as for the road edges in the source data (incomplete). |
| Search Word(s) | HUMAN ENVIRONMENT
Urban Design TRANSPORTATION Land |
| Geographic Extent Name(s) | Cocos (Keeling) Islands |
| Data Currency | |
| Beginning Date | not known |
| Ending Date | not known |
| Dataset Status | |
| Progress | Complete |
| Maintenance and Update Frequency | not known |
| Access | |
| Stored Data Format | DIGITAL - ESRI Shapefile, ArcInfo Coverage |
| Available Format Type | DIGITAL - ESRI Shapefile |
| Access Constraint | See contact details below |
| Data Quality | |
| Lineage |
The road centerlines have been generated from the topography theme using the ArcInfo 8.0.2 command CENTERLINE. Road intersections and other errors were manually edited/corrected in ArcEdit. The final version was opened, checked and attributed in ArcView 3.2 and saved as an ESRI shapefile. Roads were only extended to form obvious intersections and no missing road sections were added (for consistency and due to the age of the orthophotography). |
| Positional Accuracy |
The road centrelines have a positional accuracy comparable to that of the road edges in the topography. |
| Attribute Accuracy | Attribute descriptions appear to match the feature types as visible on the orthophotography (1987). |
| Logical Consistency | This theme is a derivative of the infrastructure theme and thus all attributes are associated with this. |
| Completeness | Incomplete. The original feature data. |
| Metadata Date | 24-07-2000 |
| Contact Information | |
| Contact Organisation | Department of Transport and Regional Services (DoTaRS) |
| Contact Position | IOT GIS Management |
| Mail Address | PO Box Z5048, Perth WA 6831 |
| Locality | 37 St Georges Tce, Perth |
| State | WA |
| Country | Australia |
| Postcode | 6831 |
| Telephone | (08) 9225-1404 |
| Facsimile | (08) 9225-1419 |
| Electronic Mail Address | keith.porritt@ga.gov.au |
| Additional Metadata | |
| Projection | Cocos (Keeling) Islands Grid 1992 (CKIG92) - originally supplied as assumed Universal Transverse Mercator (UTM) Zone 47S (WGS72) projection. Some Islands are wrongly warped when this projection is used, but West Island matches other known data. |