Creating a Revit Project Site Model using Autodesk Forma

Create a new Autodesk Forma project with a Proposal containing only the terrain and context data for your project site

Login to the Autodesk Forma application and hub

Create a new Project

Click the New project button.
Enter the coordinates for your project site.
  • For example, for the Global AEC sites;
    • Island - Coordinates: 18.4034152691126, -66.0480920001051
    • Central - Coordinates: 34.06406832370047, -118.44776888486325
    • Pacific - Coordinates: 37.726814025626794, -122.48260451498186
    • Ridge - Coordinates: 39.53872675941774, -119.811330859181
Click the Confirm map area button.

Add Context data to project

Choose the Context data to be imported into your base project by clicking the Free button for all of the data sources that you’d like to use.
  • For Buildings, choose either Open City Model or Open Street Map data.
    • The data for both of these sources is similar, but varies a bit based on the latest date it was updated.
    • Do not choose both. That would result in duplicate buildings.
  • For Terrain, the USGS data has already been imported when you created the project. You don’t need to import any other sources.
  • For Roads, choose the Open Street Map data.
  • After choosing each data source, click the Order button to confirm that it should be downloaded.
The datasets that you’ve selected appear under the Library tab in the Forma app interface.
Click the Preview button on each of the new datasets (Buildings and Roads) to display a preview of the available data in the main drawing area.
Click the Add button at the top of the drawing area to add this new geometry to your project.

Create a Proposal containing the base terrain and context data

  • Switch to the Navigator tab to see a list of the Proposals in your project.
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Double-click on the project address at the top of the left sidebar to rename your Project to a more familiar name.
  • Rename your first proposal to Project Base Site.
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Refine your Base geometry

Rename the Base
Double click the Base name that appears at the bottom of the left sidebar, and rename it to Existing Conditions.
Trace the Project Site boundary
Open the Site limit tool.
Trace the boundaries of your project site area.
Select the new Site limits layer.
Rename it to Project Site.
Right-click on the new Site limits layer and choose Move to base.
Trace the boundary of the area to be considered during your analyses
Open the Zone tool.
Trace the boundary of the area to be included.
Select the new Zones layer.
Rename it to Analysis Area.
Right-click on the new Zones layer and choose Move to base.

Send Your Autodesk Forma Proposal to Revit

  • Select the Proposal that you want to send to Revit from the list of proposals in your Autodesk Forma project.
  • If you haven’t already installed the Revit add-in, choose Revit > Download Revit add-in, then run the downloaded file to install the add-in.
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  • Choose the Revit > Send to Revit tool.
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    Temporary files will be stored in a special folder in your Windows environment.

Import Your Autodesk Forma Proposal to Revit

Convert the Autodesk Forma data to Revit elements

  • Create a new Revit project using the Default project template.
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  • Open the Massing & Site > Forma > Load Proposal tool.
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  • Click the Options button to customize the import settings.
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  • Adjust the Load Forma Proposal Options.
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    2. Turn off most of the options for creating Revit elements.
    3. Turn on the Create generic models for all other elements option.
    4. Turn on all of the options under the Terrain subheading.
    5. Click the OK button to close the Options dialog.
    6. Click the Load button to begin loading and converting the data.
  • Wait as the Autodesk Forma geometry from your proposal is converted into Revit objects.
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  • Click OK to close the Open Data Attributions dialog.
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  • Click OK to close the Warning dialog offering the option to review any warnings.
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    The new Revit elements are displayed:
    • Terrain and roads are created as Toposolid elements.
    • Adjacent buildings are created as Generic Model elements in a Group that contains all the buildings.
    Note that the conversion also sets accurate project location coordinates and rotation in this Project Site model.

    You should use the Manage > Project Location > Acquire Coordinates tool to acquire these same coordinates in any linked Revit models to keep the position and rotation consistently aligned with your Project Site model.

Clean up the Revit Site project

  • To remove any of these buildings:
    • Select the group, then choose Modify | Model Groups > Edit Group.
    • Delete any Generic Model elements that you’d like to remove.
    • Click the green Finish checkmark to close the group.
  • Adjust the Levels in the Revit Site project.
    • Switch to any elevation view — for example the South elevation.
    • Delete Level 1 and Level 2.
    • Rename Level 3 to be Project Site Base.
  • Switch to the default 3D view named {3D}.
    • Change the Graphic Display Options for this {3D} view to Realistic.

Save Your Revit Site project as a Revit Cloud model

  • Open the Collaborate > Collaborate tool.
  • Choose the In the Cloud option.
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  • Navigate to your ACC Project folder and save the project.