Autodesk CIVIL3D - CIVILDESIGNCOMP 2007 SLM CD Tutorials Manual page 496

The Median surface defines the area between the travel lanes.
For more information, see the AutoCAD Civil 3D Help topic Creating and
Editing Corridor Surfaces.
Create a top corridor surface
1 Open Corridor-5a.dwg, which is available in the
(page 819).
2 In the drawing, select the corridor.
3 Click Corridor tab
4 In the Corridor Surfaces dialog box, click
to create an entry in the surfaces table.
5 Change the surface name to Corridor - (1) Top.
6 Click the Surface Style cell for the Corridor - (1) Top surface.
7 In the Pick Corridor Surface Style dialog box, select Border & Contours.
Click OK.
8 Click the Render Material cell for the Corridor - (1) Top surface.
9 In the Pick Render Material dialog box, select Sitework.Paving - Surfacing.
Asphalt. Click OK.
10 Select the Corridor - (1) Top surface by clicking the
name.
11 Change the Overhang Correction setting to Top Links.
This setting specifies that the surface will be built using the links along
the top of the assembly. This setting is especially critical when an assembly
has overlapping subassembly links that, if connected, would result in
errors in surface triangulation.
12 For Specify Code, select Top. Click
This action adds the corridor links with the Top code to this surface.
484 | Chapter 13 Corridors Tutorials
Modify Corridor panel
Add Surface Item.
tutorial drawings folder
Corridor Surfaces
Create A Corridor Surface
icon next to its
.