26/07/2026
Three previous survey teams had been unable to produce a usable result. Where traditional methods failed, our LiDAR workflows and experience excelled.
One hectare of dense woodland. Approximately 240 trees, bushes, brambles, overgrown and almost no clear visibility through the site.
The problem was not the surveyors. It was the environment.
GNSS performance was weak beneath the canopy, while establishing and maintaining a conventional total-station control network through dense undergrowth, fallen timber and ivy-covered stems was impractical.
We were asked to take it on.
The solution was LiDAR
LiDAR does not rely on satellite visibility. By progressing through the site with overlapping scan positions, we created a consistent local coordinate system from the captured geometry and registered approximately 1.3 billion points.
We then:
• extracted horizontal sections around 1.5 m above ground to assess trunk geometry
• separated defensible diameter measurements from stems requiring ground verification
• flagged ivy-covered and partially obscured trees honestly
• screened out walls, posts, fallen timber, duplicate stems and vegetation noise
• numbered every mapped tree with XY coordinates on a CAD plan
The arboriculturist can now attend with a colour-coded drawing showing where every mapped tree is and which stems still require physical measurement, rather than beginning with an incomplete plan and trying to establish positions through dense undergrowth.
Where traditional methods failed, our LiDAR workflows excelled.
