Ground based lidar expertise, terrestrial laser scanning Contact us for laser scanning  
click here for airborne lidar surveysTerrestrial laser scanning (TLS) is also referred to as High Definition Surveying (HDS), ground based LiDAR and terrestrial LiDAR. terrestrial laser scanning homelaser scanning projectsfrequently asked questions about terrestrial lidargallery showing some terrestrial laser scanning imagescontact us for all your terrestrial laser scanning requirementsLinks related to laser scanning
   
building surveys, heritage, 3D and 2D CAD products
building surveys, coastal monitoring, transmission & distribution lines, complex plant, terrestrial laser scanning services
 
coastal monitoring, terrestrial laser scanning
transmission lines, terrestrial laser scanning
plant surveys, terrestrial laser scanning

We have extensive experience of using both terrestrial and airborne lidar to provide solutions to the powerline industry (and in fact any corridor mapping project).

In combination with Leica TruView, the scan data can be shared over the internet. You can see point clouds on screen just as if you were standing right where the laser scanner captured the scan data. Very useful for basic measurements and markups - Truview will allow users to share data throughout your design or asset management team - across multiple offices.

We are also working on identifying areas of rust on the tower and so the laser data could be used to provide a condition report.


Applications of the technology include:

  • Surveying of cateneries for soft (vegetation) and hard (buildings etc) clearance (vegetation management) and infringement surveys.
  • Danger tree analysis.
  • Thermal uprating of transmission lines.
  • Re-engineering - creating engineering drawings of existing towers, where plans have been lost.
  • Tower verticality and deformation reporting.
  • Conductor and/or insulator replacement.
  • Asset management - for GIS input.
  • 3D modelling of the towers and catenaries and all surrounding environments. Ideal for visualisation and presentation to the public or clients.
  • Topographic mapping of the pipeline corridor - for new build and re-alignments.
  • Sub- stations for downlead infringements, safety planning of clearances between plant.
  • Data loads directly in to PLS-CADD - and is applicable to transmission and distribution powerline networks.
  • Emergency access planning.
360 degree panoramic imagery


Laser scanning provides very high accuracy, reduces costs and 'de-risks' your work.

Detailed measurements from laser scan data Click the image (left) for enlarged view. Here, we measure bolt to bolt measurements and identify the edge of the tower leg and the tower heel.

laser scanning for modelling components Laser Scanning can provide very high levels of detail. Literally every nut and bolt!.

Classified laser scan This point cloud has been classified (or layered). This information was imported into PLS CADD for analysis of possible infringements.

Analysis of tower verticality Analysis of tower geometry / distortion for stress calculations and monitoring work.

360 degree panoramic images of the towers and terrain for integration into a GIS.
Assets on the towers are captured in the scan data and can again be integrated into a GIS.

Merrett Survey Partnership use the latest in scanning technology. We have dazzled clients with the speed of data capture and impressed with the accuracy of the data acquired. The ability to identify bolt centers and measure the length of steel members without the need to climb the towers have provided our clients with time and cost savings.