Siteworks supports staking a variety of objects contained within a VCL design, including:

• Points
• Lines
• Alignments
• Surfaces

If the active surface is a Corridor Template Surface, additional options are available to stake:

• Template Nodes
• Template Catch Points

Staking VCL Points

VCL points can be staked in the same way as other design points in Siteworks.

Note: The point must have a valid point name defined in the VCL file before it can be selected and staked.

Selecting a VCL Point

You can select a VCL point by:

• Tapping and holding the point in the map view
• Tapping the point directly in the Stakeout screen
• Entering the point name in the Object field
• Selecting the point from the Point Table in the Select Object screen

To access the Point Table:

1. Open the Stakeout feature.
2. Tap the List icon.
3. Select the required point.

Stakeout Options

Once selected, you can:

• Stake the point
• Stake a projected side slope from the point
• Stake a catch point from the projected side slope

Both 2D and 3D VCL points can be staked.

For 2D points, you can manually define an elevation if you need to project a side slope or catch point.

Reports and Saved Data

Stake reports and saved data generated from VCL points are identical to those created when staking other supported point types.

Staking VCL Lines

VCL lines behave the same way as DXF and DWG linework during stakeout.

Selecting a Line

You can select a VCL line by:

• Tapping and holding the line in the map view
• Selecting the line from the Stakeout screen
• Choosing the line from the List Table in the Select Object window

Available Stakeout Methods

Once selected, you can:

• Stake the line
• Stake a side slope projected from the line
• Stake a catch point projected from the line

Additional options include:

• Reverse the line direction
• Apply a horizontal offset
• Apply a vertical offset

Linestrings with Vertical Definitions

From Siteworks v1.41, linestrings created in Trimble Business Center with Vertical Points of Intersection (VPI) definitions are fully supported during stakeout.

In earlier versions, these linestrings were treated as 2D lines.

Note: Even in newer versions, linestrings with VPI definitions are still treated as 2D lines when used in COGO functions.

Staking VCL Surfaces

Only the active surface can be staked.

Before staking a surface, ensure the required VCL surface has been selected as the active surface.

Selecting a Surface

You can select the active surface by:

• Tapping and holding the surface in the map view
• Entering the surface name in the Object field
• Selecting it from the Surface Table within the List window

The Surface tab only displays the currently active surface.

Staking VCL Surfaces and Corridor Surfaces

For standard VCL Surfaces and Corridor Surfaces, the only available stake method is:

• Surface

This behaves the same way as staking a TTM surface.

Reference Line Behaviour

For Corridor Surfaces:

• The corridor alignment becomes the reference line if none is currently selected.
• If another reference line is active, Siteworks prompts you to use the corridor alignment instead.

Selecting the corridor alignment updates the reference line for all Siteworks features.

You can manually change the reference line at any time.

Staking Corridor Template Surfaces

When the active surface is a Corridor Template Surface, three stake methods are available:

• Surface
• Template Nodes
• Template Catch Points

Surface Stakeout

Surface stakeout behaves the same as for a Corridor Surface.

If no reference line is selected, the corridor alignment is automatically selected.

Template Node Stakeout

Selecting Template Nodes opens the same workflow used when staking roadway nodes from a PRO design.

The following are identical to PRO workflows:

• Stakeout process
• Stakeout reports
• Stakeout settings
• Saved data

Template Catch Point Stakeout

Selecting Template Catch Points opens the same tie-slope workflow used with PRO files.

Available options include:

• Existing tie slopes
• Custom tie slopes from selected nodes
• Outer segment projections when no tie slopes are defined

Stakeout reports, settings, and saved data are the same as those produced when staking PRO catch points.

Supported Tie Slopes

Siteworks v1.20 and later supports:

• Basic design tie slopes created from the last node in a corridor template cross-section

Currently unsupported:

• Tie slopes defined in the middle of a cross-section
• Tie slopes generated through lookup tables

Surface Offsets and Tie Slopes

Tie slopes are always projected from the original corridor surface.

Applying a surface offset does not modify how tie slopes are calculated or projected.

Staking VCL Alignments

VCL alignments can be selected directly for station and offset stakeout.

Selecting an Alignment

You can select a VCL alignment by:

• Tapping the alignment in the map view
• Entering the alignment name in the Object field
• Selecting it from the Alignment tab within the List window

How VCL Alignment Stakeout Differs from PRO Files

Unlike PRO roadway corridors, selecting a VCL alignment does not provide corridor surface stakeout options.

When a VCL alignment is selected, you can only:

• Stake a station and offset location

The workflow is similar to staking from a PRO alignment that contains alignment information but no corridor surfaces.

Defining Stake Locations

For alignment stakeout, you can define:

• Station
• Offset
• Elevation

The available elevation options depend on whether the alignment is 2D or 3D.

Elevation Options for 3D Alignments

For 3D alignments (HAL + VAL), available options include:

• Ignore
• Define Grade
• Vertical Offset
• Manually Entered Elevation
• Design Surface

The Design Surface option uses the currently selected VCL surface.

Elevation Options for 2D Alignments

For 2D alignments (HAL only), available options include:

• Ignore
• Manually Entered Elevation
• Design Surface

Again, the Design Surface refers to the currently active VCL surface.

Any surface associated with the alignment in Trimble Business Center does not change the available stakeout options.

Tangent Point Support

From Siteworks v1.30 and later, staking a 2D VCL alignment will stop at both:

• Horizontal tangent points
• Vertical tangent points

On the map:

• White circles indicate horizontal tangent points.
• Black circles indicate vertical tangent points.

Best Practices

✅ Ensure the correct VCL surface is active before staking surfaces or alignments.
✅ Use named points, lines, and alignments to simplify object selection in the field.
✅ Verify the selected reference line when working with corridor surfaces.
✅ Use template nodes and catch points when performing detailed corridor construction stakeout.
✅ Confirm corridor tie slopes are supported before relying on catch point stakeout workflows.
✅ Check tangent point indicators when staking along 2D alignments.