Sections

The cross-section at any station — the corridor's shape cut across the road, with the ground beneath it.

The Sections tab

Select a corridor and open the Sections tab. It shows the cross-section at the current station: offset across the horizontal axis, elevation up the vertical axis, drawn from the corridor's assembly with the existing ground overlaid (sampled from the target surface).

Navigating stations

Use the station spin-box, the slider, or the prev/next buttons to move along the corridor.
The section resamples lazily as you move, so scrubbing stays responsive.
Hovering in the Profile view syncs the section station.

What you see

Element	Meaning
Section lines	The assembly's links at this station — banked by superelevation, widened on curves.
Existing ground	The target surface sampled across the section.
Cut / fill	Shading between the design section and the ground.
Daylight	The cut/fill slopes where the section reaches out to meet the ground.
Grid	Offset / elevation reference grid.

To turn a station's geometry into a TIN and compute earthwork over the whole corridor, use the corridor surface tools — see Surfaces & volumes.