About Parametric Portals

You can add custom portals or use the included circular or rectangular portal components at your tunnel ends. With the parametric flexibility, they adapt to the project terrain with aligned geometry.

Portals are automatically placed when tunnels are added to a component road. Their type can also be changed as any InfraWorks component.

To change a tunnel portal type

  1. Select the portal to display its attributes in the Stack.
  2. Expand the Type panel, and click the blue hyperlinked type name of the current portal type to open the Portal Template catalog.
  3. Click a template type to apply it to your tunnel.
Circular Portal Circular Portal with Wall

To adjust a portal offset

The portal can be moved by specifying an offset from the end of the tunnel span.