Spectra-precision FAST Survey Reference Manual Uživatelský manuál stáhnout pdf (Strana 248)

100

101

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When you click

, your new entry will be in the list.

The

Edit

box leads to the same entry dialog as

Add

Remove

will provide a warning and then delete the highlighted

offset and elevation. Up and Down should not be used unless a file conversion led to out-of-order listing of offsets and

elevations. When you click

from the station edit dialog, you can save the revised cross section file back in the

section list dialog.

Input-Edit Superelevation

Roads can contain one or more curves, and each curve can have its own superelevation data. This data includes start

station for super transition, station for full super, percent of full super, station for end full super, and station for ending

the super transition back to normal crown. In FAST Survey, each superelevation data set for each curve would be

entered as a “line” of superelevation data in the “.sup” file.

If we had two curves, both with superelevation, then we would do two

Adds

using this dialog. Let’s say, for simplicity,

that we have a road with a 2% “normal crown” which has one curve to the left followed by one curve to the right, with

the following information:

Curve 1

Curve 2

Start Super Pivot

Sta: 100

Sta: 2200

Full Super

Sta: 600

Sta: 2500

Full Super %:

3% Left

4% Right

End Super:

Sta: 1400

Sta: 3500

End Super Pivot:

Sta: 1900

Sta: 3800

The first curve to the left goes through three stages as it pivots into full super: (1) the right side pivots to “flat”, (2) the

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