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Super elevations card – Spectra Precision Survey Pro v4.6 Recon-Nomad Reference Manual User Manual

Page 426

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Survey Pro Reference Manual

R-418

Super Elevations Card

Roads Edit Roads ( New… or Edit… ) Super Elevations

.

The Super Elevations card of the New Road screen is used to add or

edit super elevations.

A super elevation changes the cross slope of the first segment of a

template in order to bank a curve – the slope of any remaining

segments will remain unadjusted. One super elevation defines a
begin point and an end point where the slope change begins and

where it finishes the transition for one side of a road. Therefore, to
bank a two-lane road, four super elevations would be required – one

at the beginning and one at the end of the curve for each side of the

road.

A super elevation can either hinge at the outer edge of the first

segment, or at the centerline. Hinging at the center results in the

elevation of the outer segments to change. Hinging at the edge
results in the elevation of the centerline changing. Because of this,

Survey Pro will only allow you to hinge on edge for one side of a road.

If the other side is also super elevated, you will be forced to hinge
that side at the center so that an abrupt change in elevation does not

occur at the centerline.

Add… : When a super elevation or is selected

from the L or R columns in the Super Elevations card,
this button opens the Add Super Elevation screen, which

allows you to add a super elevation to the same side of

the road that was selected. (Widenings and super
elevations are always sorted in this list by their specified

start stations.)

Edit : allows you to edit the selected super elevation in

the Edit Super Elevation screen, which is identical to the

Add Super Elevation screen.

Remove : removes the selected super elevation from the

list.

Check… : checks the road for errors and displays the

results in the Roads Report screen, described on Page R-411.