Graphics Programs Reference
In-Depth Information
3.
In the Profile Properties dialog box, click the Design Criteria tab and
check the box next to Use Criteria-Based Design.
4.
Check the Use Design Check Set box, and select Subdivision.
5.
Click OK to close the Profile Properties dialog box. Press Esc to clear
the grips on the profile and note the two yellow shields near the right
end of the profile, as shown in Figure 7.10.
This warning symbol
disappears, but a new
warning symbol may
appear on the tangent
to the left because the
grade of this tangent
now exceeds 5 percent.
FiGuRE 7.10
Warning symbols indicating design check set violations
6.
Zoom in to the area where the warning symbols are displayed. Hover
the cursor over the symbol on the left.
The tooltip reports that the grade check is being violated for this
tangent.
▶
7.
Click the profile to display its grips. Then click the PVI grip to the left
of the warning symbol and move it upward.
This tooltip indicates
that the minimum
curve length of 3
(1) times the design
speed isn't being met.
8.
Move the PVI down little by little until both tangent warning
symbols disappear indicating that you have satisfied the design
check for both tangents.
9.
Press Esc to clear the selection, and then hover your cursor over the
remaining warning symbol.
▶
10.
Click the profile to display the grips, and then click one of the circular
grips at either end of the curve and move it outward to lengthen the
curve. When you lengthen the curve enough, the warning symbol
disappears.
If you haven't already
done so, download
and install the files for
Chapter 7 according to
the instructions in the
Introduction.
11.
Save and close the drawing.
You can view the results of successfully completing this exercise by opening
Design Check Set - Complete.dwg
.
Exercise 7.9: Apply a Design Criteria File
▶
As you did with alignments, you can assign design criteria files to a profile. The
general behavior of design criteria files is the same as it is for design checks: they
