beautypg.com

Spectra Precision FAST Survey Reference Manual User Manual

Page 267

background image

p265

drive the stake where you can. In this case, you would choose the Offset method. In the Offset example above, we had

to walk past the catch point about 2 units (from 36.50 to 38.56). We drive the stake, and note that the catch is at 956.03

rather than 955.01, so we measure up 1.02 on the stake, and draw a horizontal line there as the catch point. An extra

line appears in the report that tells us to write "Cut 2:1, 10.28 V, 20.56 H" on the stake. In cases of fill where there are

obstructions, walk into centerline so when you drive the stake, you can mark where the fill intersects the stake. Note

that this same level of reporting occurs with "non-interval" staking, where you get real-time cut and fill at any point, also

allowing you to drive the stake to avoid obstructions.

When Enter or OK is pressed, you are prompted for whether to stake the first offset stake.

If you are doing “User-Defined” or “Point-Defined Alignment” methods, you are shown the horizontal distance and

vertical fill or cut difference to the pivot point, which can be written on the Slope Stake. Additional break-point

information appears if you are using the “Design File” or “Section File” method. If you trust that the Slope Stake will

not be knocked out, then you are done—no need to set an offset stake.

Pressing OK leads to the prompt to set the first offset stake. If you choose to set the first offset stake, then you can set

the offset distance.

Press OK and then you are in a standard stakeout screen. The offset point is a fixed location and the stakeout procedure

is similar to point stakeout. This leads to a report of information that can be written on the Slope Stake. Finally, you

will be prompted for staking out a second Slope Stake, to establish “line.” After the first offset stake is set, and before

the prompt for the optional second offset stake, a summary screen will appear. If you have used the Road Design File or

Section File methods, you will be presented with every break point into centerline.