Problem Description: How to create a Terrain Model From Corridor Design.
1. Create a corridor model using Open Roads Technology. Please refer the below link which shows simple workflow for corridor design
2. Click on fifth option "Create from Elements" under Terrain Model, this will brings up the create Terrain Model dialog box, set Feature Type, Edge Method, and Feature Definition.
3. Select corridor model as shown in the below snapshot.
4. This will create Terrain model from Corridor.