# To stake out a station on a string in a GENIO road

To stake out a station on a string in a GENIO road, start the survey and then:

1. In the plan or cross section view, tap the station on the string.

   To select a different position, use the left/right arrow keys to select a different string and the up/down arrow keys to select a different station.

   To select the station from a list, from the tap and hold menu tap Select string and select the string and then from the tap and hold menu tap Select station.

   To stake out a position defined by a nominal station, from the tap and hold menu tap Select station and in the Station a field enter a station value. For more information, see String interpolation.

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.
   - To stake points on surfaces other than the finished road surface, define a subgrade.

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 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 selection screen.

7. Continue selecting and measuring points along the road, or select a different stakeout method.

- For 5D / Interface strings, the target may not coincide with the design position because the target is calculated relative to your current position.
- 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.