I would suggest you use the Civil Terrain Model tool, Create Terrain From Elements, this will give you a Civil Terrain that you can use with OpenRoads tools.
communities.bentley.com/.../353824
The tool you refer to above is a MicroStation Platform tool. You can post an alternate post of the MicroStation forum to see what others use those values for. I am not familiar with that tool or it's settings.
communities.bentley.com/.../353824
The tool you refer to above is a MicroStation Platform tool. You can post an alternate post of the MicroStation forum to see what others use those values for. I am not familiar with that tool or it's settings.