After setting up the grading parameters for Level AI or the servicing parameters for Service AI, you can validate the model and send it to Allsite.ai to run. After the AI model run is complete, you can process the results and bring them back into Civil 3D.
Before running the model, validate your Level AI or Service AI model by running “Level AI Prepare” or “Service AI Prepare.” This extracts Civil 3D and Allsite.ai objects from your model and checks that they meet Level AI and Service AI requirements. “Level AI Run” and “Service AI Run” perform an additional validation before sending the model to Allsite.ai. If there are no fatal review items, meaning priority 9 review comments, the model will be sent to Allsite.ai for processing.
Drawing Health Before Running:
Before running validation, Level AI Prepare, or Service AI Prepare, make sure your Civil 3D model is fully up to date.
Rebuild corridors (especially if any show “out of date” warnings).
Rebuild or update the surfaces used by your design and targets if any are out of date.
If the drawing becomes out of date after heavy edits, such as delete, undo, or move actions, carefully run AUDIT and -PURGE (RegApps) on a copy of the drawing to clean orphaned data and stale references.
Level AI and Service AI Prepare
A progress popup appears, and a Civil 3D status pane opens. You can dock the status pane to one side.
Validation messages are displayed in the model. A Prepare run can generate review comments on the AS-REVIEW-INFO, AS-REVIEW-WARNING, and AS-REVIEW-ERROR layers. Use the Toggle Review Layers dropdown to turn Info, Warning, and Error messages on or off so you can quickly review model issues. More detailed information about validation errors and resolution steps is available here.
Click a validation point to see more information about the validation error.
All review points have a priority from 1, the lowest, to 9, the highest. Review points are color-coded by criticality, with red indicating the highest criticality and yellow indicating lower criticality. Higher-priority review items are more likely to affect the Level AI or Service AI model run. Priority 9 review comments block the run and must be resolved before the model can be sent to Allsite.ai. Lower-priority comments may still affect the run and should be reviewed and corrected where necessary.
The Allsite AI Assistant provides an overview of review errors, lets you navigate to each error, and gives guidance on how to resolve it.
Review comments are also logged in the Civil 3D Panorama Event viewer.
Not all review points need to be addressed. Review items below priority 7 may affect the model, but they may also be acceptable depending on the design context. Review the items before and after a model run. Review items below priority 5 are informational only, and their layer is off by default.
Level AI Run Settings
When a Level AI run is triggered, the Level AI settings pane opens. Use this pane to configure settings for the run.
Setting | Description |
Run What-If Scenarios if Not Viable | If the design is not viable, Level AI will run scenarios to try to create a viable design, such as adding walls, changing lot grades, or increasing wall heights. If this setting is disabled, non-viable designs return a viability overlay, and no iteration fee is charged. |
Include Services | Includes sanitary and storm services in the Level AI analysis. If disabled, existing storm and sanitary connections are ignored in the Level AI run. If enabled, existing and proposed services are included using the pipe minimum grade and minimum cover settings from Allsite.ai. Level AI propagates the minimum grade up road corridors to help confirm that every site can be serviced. A “Services grade contingency” is added to allow for pipes following non-optimal paths up road corridors. |
Existing Services Only | When Level AI runs, proposed pipes and structures in the model with invert levels set are ignored. Only existing services are included. |
Pre-Grade Analysis | Creates a pre-grade surface for cut/fill analysis. The pre-grade surface is defined as the proposed surface minus the pre-grade offset specified below, or the offset specified on parcel and road objects. |
Pre-Grade parcel offset Road corridor parcel offset | Default offset from the proposed ground surface for the pre-grade surface. This can be overridden on individual parcels and roads. |
Add Potential Walls | Specifies where potential walls are placed around lots. Potential walls are used in what-if scenarios and can be automatically added to a model to help make future runs viable. |
Draw Building FFL Feature Line | Specifies whether to output a feature line for the finished floor level at the top of the building pad into the proposed surface. |
Level AI or Service AI Run
After reviewing and validating your model, send it to Allsite.ai for the AI model run. Smaller jobs may take about 30 minutes, while large projects over 100 acres may take more than 2 hours.
Click the Status button to check the run status, or click the “Allsite.ai” button in the ribbon to open the project page in Allsite.ai and view progress. After the run is complete, you can:
Level AI: load and interpret your Level AI results.
Service AI: Loading the results removes previous proposed pipes and structures that were not locked and replaces them with the new data. Some extended data and native pipe and structure data is also updated. Catchments are also loaded into the model.