The earthworks extent tells Level AI where it can excavate the ground. No ground outside the earthworks extent will be adjusted. It is important to get the boundary of the site right such that neighbouring areas are not touched.
How to add
Select the earthworks extent from the Allsite.ai ribbon
Draw a closed polyline around the site. Hit esc/enter to close it automatically. The Allsite schema gets added as extended data. This also adds the object to the defined layer.
Things to remember:
Ensure the earthworks extent is at least 7 feet within the Existing Surface boundary, this gives Level AI the necessary information to tie in elements such as roads.
Road Alignments/Corridors snap to the earthworks extent, note - the roads will attempt to make tangential connections based on the existing levels in the existing surface just outside the earthworks extent (unless alignment tangent overrides are applied).
Give a decent amount of room between elements such as road corridors and the edge of the earthworks extent, this gives Level AI room to tie-in levels (or add a grade break along the edge of the earthworks extent).
Multi-stage Earthworks
You can have multiple earthworks extents in your model, this allows tallying up of earthworks volumes. Balance across earthworks stages can be controlled by setting the Stage number, multiple stages can have the same number - e.g. Earthworks Phase A and Phase B can be set to Stage=1 and Phase C can be set to Stage=2 - this will balance Phase A and B together separately from Phase C.
Stage Numbers must start from 1 and be consecutive (if left blank, assumes stage 1)
Hand-off between stages can be controlled with "Bulk Import" and "Bulk Export", this tells Level AI how whether there is some extra fill (ie from offsite) that needs to be lost in a particular stage when Level AI balances or vice versa.
Extended Attribute Fields | Description |
ID | A text identifier for the stage |
Stage Number | The earthwork stage If blank assumes stage is in stage 1 |
Bulk Import | Specifies the amount of bulk fill to bring into the stage. Level AI will attempt to balance the stage accounting for this import. |
Bulk Export | Specifies the amount of bulk fill to export from the stage. Level AI will attempt to balance the stage accounting for this export |
Cut to other stage | Tells Level AI to target cutting a specified amount of fill to another stage |
Fill from other stage | Tells Level AI to target bringing in a specified amount of fill from another stage |