The Survey Portal is a Geographic Information System and contains data on:
All new mapping and survey projects (contracts) completed for Main Roads WA wil be entered into the layers as they are lodged and approved by our Data Management team. Availability within the Portal is simultaneous.
New and improved features available in the Survey Portal include:
The next major enhancement will be the addition of a Landgate Skyview imagery layer to enable the use of available imagery (both high and low resolution). This is expected soon.
Minor enhancements to the Survey Portal appearance are being made as they are identified, but if there are suggestions which you wish to make, please contact Ray Watson at Main Roads on 93234152 or firstname.lastname@example.org.
Users of Survey mark data must be aware that due to the large variety of coordinates entered into our database (AMG, MGA, Project Grids), the integrity of any transformations used in the future will dictate the relativity between marks to some extent. Verification of the relativity of adjoining survey marks in your work area should always be carried out.
Also note that for RRM's in particular, the road number always has one or two zeros after the road letter (H or M) and then either one or no space to the mark number. Thus, mark number 353 on Great Eastern Highway is H005353. Mark number 13 on York Merredin Road is M041 13. All RRM numbers are unique.