Pavement Inspection is a tool that renders the distress in pavement and it shown as a layer in Site Scan.
How to use Pavement Inspection?
- Upload a shape file (SHP) to Site Scan with the boundary of the area you want to detect the pavement distress or cracks on the road.
- In the ortho-view in Site Scan, turn on "Pavement Inspection" and select the SHP
- You can upload multiple SHP files. For example, in case you want to check sections separately.
Note: We will add the functionality to draw your own boundary directly in Site Scan in the near future.
What kind of shapefile (SHP) file do I need?
The SHP file you'll enter in Site Scan must be a zipped file (ZIP) containing at least the following SHP files:
Recommendations for best results
- Fly ideally at 50 ft. The lower you fly the best results you'll get.
- Make the boundary a little closer than the actual pavement boundary. Avoid going over the sidewalk or beyond the limit of the road or pavement.
How to create a .shp boundary using QGIS
There are different ways to create a boundary in .shp format but we will be using QGIS 2.8 for this exercise. You will need to download your orthomosaic from Site Scan Manager and have it ready to import it on QGIS.
- Open QGIS and drag and drop your orthomosaic to render it
- Add a "New Shapefile Layer" by using the keyboard shortcut Ctrl+Shift+N and use "Polygon" type
3. You will need to name and save your boundary file in your PC, save this on an easily accessible directory as we will need to access its location later on. After saving your file it will appear as a new layer in QGIS; highlight your newly named layer and right click on it to toggle editing:
4. Click on the "Add Feature" button located on the top left menu and draw a polygon boundary on your area of interest, when you have finished drawing the boundary right click on your mouse and enumerate your Feature.
5. After drawing and enumerating your Feature save all changes by right clicking on the layer and click on "Toggle Editing" then save your changes:
6. Close QGIS and locate your .shp files that were saved previously in the directory of your choice; once you have all five .shp files highlight and zip them so they can be ready to be uploaded to Site Scan Manager.
7. Upload your .shp boundary to Site scan Manager
If you have any questions please reach out to your designated Success Services Engineer.