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Spectra Precision Survey Pro v4.5 Ranger User Manual User Manual

Page 99

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Road Layout

89

27. With selected in the Left column, tap

the Add… button again.





28. From the Add Left Super Elevation screen

we will start the transition out of the super
elevation 200 feet from the beginning of the
road so enter 2+00 in the Start Station
field.

29. The super elevation will return to the

original slope after 25 feet so enter 2+25 in
the End Station field.

30. The start slope must be the same as the

slope of the road where it leads into the

super elevation, so leave the Slope 1 field

set to 8.

31. We want the ending slope to be -2% so in the Slope 2 field, enter

-2. Leave the parabolic transition fields set to 0.

32. Be sure the Hinge on field is toggled to Center and then tap

to continue. This will complete the super elevation entries for the

left side of the road.

33. We now need to repeat the above steps for the right side of the

road. Tap in the Right column to select that side of the
road and then tap the Add… button to open the Add Right Super
Elevation screen.