Video: Create a Topographic Subregion

Create a topographic subregion to define an area of the site that requires a different material type.

This video demonstrates the following:

1. Create a toposurface to include a road and parking lot.
2. Use sketch mode to define the subregion boundary.
3. Create a closed loop sketch of the subregion boundary with the Pick Lines tool.
4. Change the material for the subregion.

Note: This video was recorded using Revit 2011. When using Revit LT, you may notice differences in functionality and user interface.

Transcript

When working with toposurfaces in Revit LT, you may need to create a topographic subregion to define an area of the site that requires a different material type, such as asphalt or earth.

In this example, a subregion will be created to include a road and parking lot. On the Massing and Site tab of the ribbon, click the Subregion tool. Revit LT switches to sketch mode so that you can define the boundary of a subregion.

Use the tools on the Modify and Draw panels to create a closed loop sketch of the boundary. In this case, the Pick Lines tool is used to create a boundary from a DWG import already contained in the Revit LT project. When the boundary for the parking area and road is complete, click Finish.

The material for the subregion is specified on the Properties palette. To change it, select the Material value and then click the dialog launcher. In the Materials dialog, select the material you want to apply to the subregion.

In this case, Site - Asphalt is used. If necessary, you can create a new material for the subregion from this dialog. The new material is now applied to the subregion. Subsequent changes to the toposurface will also be reflected in the subregion.

Use subregions in Revit LT to help define and document the site conditions of your project.