Autodesk CIVIL3D Tutorial - Page 500

8 Click OK. The new boundaries are added to the Corridor - (1) Top and Corridor(1) Datum surfaces. The corridor model is regenerated and the surfaces are rebuilt. These surface boundaries are defined by a pair of feature lines. When there are more than two of a given type of feature lines, then you must use the interactive method to use them to define a boundary. For example, you were able to automatically create a surface boundary for the daylight region because there is a single pair of Daylight feature lines that define the daylight edges of the corridor assembly. By contrast, the assembly has two lanes, each of which are defined by its own pair of EPS feature lines. In this case, you must define the boundary interactively. Create a pave outside boundary interactively This boundary will define the outside edges of both lanes by using the lanes' outer EPS feature lines. This will be an outside boundary to define the outside edges of the Corridor - (1) Pave surface. 1 Click View tab ➤ Views panel ➤ Named Views list ➤ Corridor_Begin. The drawing is redrawn to a zoomed-in view of the starting area of Corridor (1). 2 In the drawing, select the corridor. 3 Click Corridor tab ➤ Modify Corridor panel ➤ Corridor Surfaces . 4 In the Corridor Surfaces dialog box, on the Boundaries tab, select the Corridor - (1) Pave surface. Right-click. Click Add Interactively. 5 In the drawing, select the feature line along the left-inside edge of the paved shoulder within circle 3. 6 Since there are multiple feature lines at this location, the Select A Feature Line dialog box is displayed. Select EPS. Click OK. 7 Pan to the other end of the corridor. Notice that a red line appears along the first feature line you selected. 8 Select the feature line in circle 10. 9 In the Select A Feature Line dialog box, select EPS. Click OK. 488 | Chapter 13 Corridors Tutorials