Spectra-precision Survey Pro v4.5 Recon and Nomad User Manual Bedienungsanleitung Seite 109

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Seitenansicht 108
Road Layout
99
Add Super Elevations
19. Tap the Super Elevations tab where we will insert a
super elevation at the beginning and end of a curve
for the left and right sides of the road.
20. With <End> selected in the Left column, tap the
Add… button. This opens the Add Left Super
Elevation screen, which allows you to add a super
elevation to the left side of the road.
21. We will start the super elevation 100 feet from the
beginning of the road so enter 1+00 in the Start
Station field.
22. The super elevation will be at the final slope after 25
feet so enter 1+25 in the End Station field.
23. The start slope must be the same as the slope of the
first segment of the template that leads into the
super elevation, so leave the Start Slope field set to
-2.
24. We want the ending slope to be 8% so in the End
Slope field, enter 8 for simplicity, we will not use
parabolic transitions so leave those fields set to 0.
25. Most super elevations hinge at center so be sure the
Hinge on field is toggled to Center and then tap to continue.
This will complete the super elevation for the beginning of the
curve on the left side of the road.
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