2.0

Using the Cross Section Elements in a Profile
399
After you have imported the transition, ditch, or superelevation lines, you can
edit them, redefine them with the Define Profile Alignment command, then
reattach them to the cross sections using the Edit Design Control command.
Importing the Superelevation into a Profile
Profiles do not directly support superelevation because superelevation is based
on grade, not elevation. However, you do have the option of converting the
superelevation information to a transition so that you can import it to the
profile.
By using this option you can either plot the superelevation for viewing
purposes, or you can edit the profile and attach it to the template as a
transition. To do this you need to have the transition point defined at the same
location as the superelevation region point. Then, before you attach the profile
transition to the sections, you need to turn off the Superelevation calculations
toggle in the main Superelevation Parameters dialog (Cross Section ä Design
Control ä Superelevation Parameters). This allows the outer edge of the
superelevation region to be completely controlled by the transition profile
elevations.
To import the superelevation into a profile
1 From the Cross Sections menu, choose Ditch/Transition ä Import Profile.
2 Specify whether you want to import the left or right profile.
The type of prompt that is displayed depends on which profile is selected (right
or left). For example, the following prompt is displayed if the left profile is
selected.
Left profile to draw (Ditch/Super/1/2/3/4/5/6/7/8):
3 If you specify S for Superelevation at step 3 while importing the ditch or
transition from the sections into a profile, and if you specified Left at step 2,
then the following prompt is displayed for the left side:
Profile layer to use (L1/L2/L3/L4/L5/L6/L7/L8):
4 Specify the transition layer to use.
These layer names represent the transition regions you define on the template
with the Edit Template command. The superelevation control point and the
transition control point have to be in the same location on the template in
order for this to work. So, you must specify the number of the transition region
that coincides with the outer left (or right depending on which side is
imported) superelevation region point.
Defining a Ditch or Transition as a
Vertical Alignment
After importing a vertical ditch or transition into the profile, you can define it
as a profile alignment since the transitions and ditches are imported as line
entities.