Prerequisite: Allsite.ai Civil 3D extension must be installed.
Follow this guide if you are:
Preparing an existing DWG for use with Allsite.ai
Setting up a new blank DWG with Allsite.ai
Initialising a Civil 3D project for use with Allsite.ai
DWG Format and Requirements
Allsite.ai currently requires DWGs to follow a prescribed format. This includes drawing road corridors, intersections, and cul-de-sacs in supported ways. More workflows will be supported over time.
All required items must be available in the same master DWG - multiple drawings are currently not supported. Items such as the existing surface and alignments can be referenced into this master DWG using Civil 3D data shortcuts.
A valid EPSG/WKID coordinate system must be assigned.
An existing surface must be available. It can be built from LiDAR or a topographic survey.
Roads must be represented by one of the following options:
Recommended: road centrelines converted to Allsite.ai Road (Simple Corridor) objects, with the corridor, intersections, cul-de-sacs and knuckles built for you by Generate Road Corridor, as described here.
Road corridors, intersections, knuckles (sharp bends), and cul-de-sacs drawn by hand in Civil 3D in a way supported by Allsite.ai, as described here, with each road's centerline alignment converted to a Road (Simple Corridor) to carry its design settings.
Civil 3D parcels must be created for all lots.
A 2D polyline must define the earthworks area, which is the area where grading is allowed.
Optional: Existing manholes and/or outlets for storm and sanitary connections, with invert elevations populated and the corresponding Civil 3D parts list assigned. Each network requires a separate structure and pipe parts list.
Optional: 2D polylines, block references, or hatches representing items that can be converted into Allsite.ai grading objects, such as ponds, buildings, and driveways.
You may run the “Validate Corridor” tool without initialisation to confirm your DWG and road corridors meet Allsite.ai requirements for Level AI and Service AI.
Initialising and Linking a Project to Allsite.ai
When you open Civil 3D, you will see the Allsite.ai ribbon.
To link the DWG to Allsite.ai, click the Initialize Project button.
This opens a dialog box where you can link the DWG to an existing Allsite.ai project or create a new project.
Clicking “Create” opens the Allsite.ai Create Project wizard. For help creating a project, click here.
After the project is created, return to the Project Initialization dialog. The new project should appear at the top of the list. Select the project and click Link to connect it to your DWG. We recommend saving the DWG after linking. A pop-up will prompt you to save.
You will now see the full Allsite.ai toolbar. If you link to an existing project, Allsite.ai extended data will be added to existing Civil 3D objects in your model, including alignments, assemblies, parcels, pipes, and structures. This metadata is used to identify and process the objects.
You are now ready to set up your model for your first Level AI run.
Click through to the related walkthrough for setting up a project.