Update Topography

The Create Surface Roads screen is used to create roads on a reference topography, using a reference line and various parameters describing road profile and cut and fill batters.

After running the command, the Create Surface Roads dialog is displayed in a dockable control bar.

See Create Surface Roads.

When road and batters have been generated and look as you want them, the Update Topo button can be used to create a copy of the original topography.

The topography will be updated to incorpote the designed road (honouring the cross sections specified), connected to the topography via cut and/or fill batters. A continuous surface will be created, with each element of the topography (with respect to surface roads) being shown in a separate colour.

The resulting wireframe object will include a TYPE attribute containing the following possible values:

• Absent (-): surface representing the original topography
• ROAD: surface representing the designed surface road
• CUT: surface representing a batter cut surface
• FILL: surface representing a batter fill surface

If the original topography is being shown in the current view then it will automatically be hidden. You can re-enable it using the Surface Roads Toolbar if you wish.

Related topics and activities

• Create Surface Roads

• Create Surface Roads Toolbar

• Surface Roads Reference Lines

• Surface Road Gradient Constraints

• Surface Road Cut and Fill Volumes

• Road Sections and Parameters

• Surface Road Batters

• Updating the Topography

• create-surface-roads (command)