Technical information

182 | Chapter 13 Viewing and Editing Roads in Section View
■ Depth control slopes use different slopes in cut and fill for various depth
ranges. These are based on the depth slope tables that you can create by
choosing Design Control
➤ Depth Slope from the Cross Sections menu.
This option determines the depth of cut or fill for each section, and then
uses the appropriate slope.
■ You can apply benching to simple slopes or depth control slopes based on
height criteria. You can define the width and grade of the bench.
■ Stepped control slopes are a variation on depth control slopes. This slope,
instead of finding the appropriate value for the current depth and apply-
ing it as a constant, changes as it passes through each depth range.
■ Surface control slopes can be applied only in cut situations and are based
on the different existing ground surfaces that they pass through.
To design slopes for a roadway
Steps Use to locate
1 Create finished ground cross sections for the roadway.
2 If you want to use stepped, surface, or depth control
slopes, then you must define the slope tables.
Select either Depth Slopes, Stepped Slopes, or Surface
Slopes from the Cross Sections
➤ Design Control menu.
Changing the Depth Slope
Settings
Changing the Stepped
Slope Settings
Changing the Surface Slope
Settings
3 From the Cross Sections menu, choose Design
Control
➤ Edit Design Control and then click Slopes to
modify the cross section slope control.
In this step, select a type of slope you want to apply in cut
and fill situations. After you exit the Slope Control dialog
box, the cross sections are processed and updated with
the new slope information.
Specifying the Design
Control Values for
Sideslopes
4 You can modify the slopes for individual cross sections, if
needed, by selecting Cross Sections
➤ View/Edit Sections.
Changing the Slope Control