# To stake out a position relative to a string in a GENIO road

To stake out a position relative to a string on a GENIO road, start the survey and then:

1. Tap the linework that represents the string. The name of the selected string appears at the top of the screen.

   To select a different string, use the left/right arrow keys. Alternatively, tap and hold in the plan view and select a string from the list. The strings in the list are determined by the templates assigned at your current position relative to the road.

2. To edit the elevation, from the tap and hold menu select Edit elevation. To reload an edited elevation, select Reload original elevation.
3. If required, add the following features:
   - To stake points offset from the road, leaving the roadway clear for construction, define a construction offset.
   - To stake cut/fill catch positions, define or edit a side slope.
   - To confirm the construction of the road surface, define a cross slope.

4. Tap Start.

   The Road navigation screen appears. Tap Options to configure preferences for the navigation display, grade, as-staked point details, or to view stakeout deltas relative to a digital terrain model (DTM).

5. Use the information in the Road navigation screen to see your position relative to the road and navigate to the point to stake it out.

   If your current position is within 5 m of the selected string, the plan view shows a dashed green line drawn at a right angle from your current position to the string.

   If you are staking a catch point (5D / Interface string) with construction offsets, navigate to the catch point and then tap Apply to add the construction offsets. You are prompted to apply the offsets from your current position. If you are not on the catch position, select No, navigate to the catch position and then tap Apply again. To store the catch position and the construction offset, see Construction offsets.

6. When the point is within tolerance, tap Measure to measure the point.

   When using a Trimble SX12 scanning total station in TRK mode with the laser pointer enabled, the Stakeout screen shows the Mark point softkey instead of the Measure softkey. Tap Mark point to put the instrument into STD mode. The laser pointer stops flashing and moves to position itself at the EDM location. When you tap Accept to store the point, the instrument automatically returns to TRK mode and the laser pointer resumes flashing. To remeasure and update the stakeout deltas, tap Measure after you tap Mark point and before you tap Accept. For more information, see EDM settings.

   Tap Store.

   The software returns to the navigation screen.

7. Continue measuring points along the road.
8. To exit this stakeout method, tap Esc.

- If the string selected to stake is a 5D string Roads converts this string to a side slope. The calculated slope value is defined by the slope between the 5D string and the adjacent 3D string.
- For 5D / Interface strings, the target may not coincide with the design position because the target is calculated relative to your current position.