What we need to set up your project:
Item 1: General Project Information
Please provide all requested info from Project Setup email.
Item 2: Flight Area
We either need a satellite map screenshot outlining the project area or a design document that shows the limits that should be captured in our flight (i.e. Overall Civil Plan). If you have accepted a proposal already, you will only need to confirm the screenshot sent in your Project Setup email.
💡 Something to consider – Capturing the roadways surrounding the site allows for the monitoring of any lane closures or perhaps material being dragged off the site onto roadways.
Item 3: Flight Markers (Advanced scans only)
Once you have confirmed the Flight Area, we will recommend the locations for Ground Control Points (GCPs). These points are used to ‘tie down’ the scan surface to ensure accuracy and this location recommendation ensures each scan is as accurate as possible. Your surveyor will place Flight Markers (X’s on the ground visible from the air) near the locations we suggest and return to us their exact coordinates through a CSV file.
We would like to have an initial conversation with the individual who will be placing/measuring these as soon as possible regarding means & methods. Placement of GCPs is typically the longest lead time we face from approval of the project to first delivery of data to you. Information on materials and methods of placement can be found in the Flight Marker Guide.
💡 Keep in mind, we just need to be in the vicinity of recommended locations and the actual installed coordinates need to be returned to TraceAir before we can fly. Priority should be given to access and durability.
Item 4: Design Grade (Advanced scans only)
To enable Cut/Fill calculations, we will need a 3D CAD file that represents the top-of-dirt surface after grading activity is completed. Each scan surface will be measured against this design surface to calculate the remaining Cut/Fill required to meet design.
The file should contain either a 3D surface of the design grade or elevated objects for all the elements of the design model, so that we can create a 3D surface based on them.
💡 This surface should not represent top of paving, but rather the dirt underneath.
Items that can increase the functionality of TraceAir
Item 5: Original Grade (Advanced scans only)
For historical comparison, it is also helpful to upload the topographical surface that was created by the surveyors. This is typically a file captured before the project begins. This can be viewed the same way as any of our drone scans and provide insight when comparing current grade against the site’s pre-existing grade (i.e. see the total dirt movement that has occurred to date).
Item 6: Overlays
For horizontal comparison, any 2D CAD design files that would be useful to add as 'Layers' over the scan. We do accept PDFs for Overlays but often face issues with scaling and alignment. It is preferred to have DWG or DXF files that have coordinates contained within them.