Central Alliance conducting a laser scan on a canal.

Laser Scanning

High definition 3D laser scanning surveys are becoming increasingly popular for building and civil engineering projects, particularly now that BIM is being used more widely. We are finding that laser scanning is replacing traditional survey methods due to its fast data capture and high accuracy.

The use of 3D laser scan surveys enables us to analyse objects or the environment and to record their shape and location in real time. The resulting information is called point cloud data, which comprise millions of data points and can be used to construct 3D models.


Each scan takes just minutes, gathering millions of points (with a single point accuracy of 3mm and modelled surface accuracy of 1mm.).

Central Alliance laser scan images of a canal.
  • Accurate information
  • Eapid data collection – 1,000,000 points per second
  • Complete data – all information in the scan view is collected in just one visit
  • Risk reduction – makes remote surveys at hazardous sites possible and can reduce repeat returns to restricted locations
  • Data can be processed as required to fit into the priorities within a programme of work


  • Highway surveys
  • Railway structures
  • Electricity HV Substations
  • Water treatment works
  • Measured building surveys

Central Alliance uses a range of 3D laser scanners with varying capabilities. The particular project may require a specific solution relating to the final output requirements.

Central Alliance completing a laser scanning survey between two arched bridges


Laser Scanning