
Superelevating a Roadway
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If you used a speed table to draw the spirals for your alignment,
some superelevation information, such as the maximum e value,
the runoff lengths, and the percent runoff is already defined for the
roadway design.
To superelevate a roadway
Steps
Use
to look up
1 From the Cross Sections menu, choose
Templates
➤
Edit Template to define the
superelevation regions on the finished
ground template.
Define the Template
Superelevation Regions
on a Template
2 From the Cross Sections menu, choose Design
Control
➤
Edit Design Control and then click
Template Control to apply the template to the
cross sections.
Specify the Design
Control Values for
Templates
3 From the Cross Sections menu, choose Design
Control
➤
Superelevation Parameters to edit the
superelevation curve parameters.
You can select which method of superelevation to
use, edit the su/jointfilesconvert/425361/bgrade superelevation values, and
so on.
Change the
Superelevation Control
Values
Edit, Insert, or Delete a
Superelevated Curve
4 You can generate a report of cross section
information by clicking Output in the
Superelevation Control dialog box.
Output the
Superelevation Data
5 From the Cross Sections menu, you can choose
View/Edit Sections to view and edit the
superelevation at individual cross sections.
Edit the Superelevation
for One Section at a
Time
6 Although profiles don’t directly support
superelevation, you can convert the superelevation
information to a transition so that you can import it
into the profile.
From the Cross Sections menu, choose
Templates
➤
Edit Template to define transition
points at the same location as the superelevation
points on your template. From the Cross Sections
menu, choose Ditch/Transition
➤
Import Profile to
import superelevation as a transition line into your
profile.
Import Superelevation
into a Profile
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