Graphics Programs Reference
In-Depth Information
12. In the Sight Distance panel, click Place Sight
Pin. Click a point within the yellow Sight
Failure area.
13. In the Sight Distance panel, within the
Visual Options section, uncheck all boxes
under Road and verify that all boxes under
Sight Pin are checked.
14. Zoom in and study the graphics
representing the sight pin analysis, as shown
in
Figure 3-17
.
Figure 3-17:
Analyzing sight distance using
a sight pin
You should see two sight lines: one
projecting to the end of the sight distance
(the end of the black arrow) and the other
passing through the first point obstructed by
the embankment. The zone between them
represents the sight region where the
obstruction has an effect. You should also
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