20km Road Survey Using Drone Based LiDAR

PROJECT

Singleton Safer Roads Project LiDAR Survey

CLIENT
David Cant Surveyors (GHD)

DATE

November 2018

SCOPE

A local council received funding from Transport for NSW’s Safer Roads program for the design and implementation of 4 road safety projects. 20km of the road was required to be surveyed; the following information is to be contained in the survey:

  • Investigation and location of existing traffic facilities i.e. line marking, signage, guideposts etc.
  • Items likely to affect installation of any proposed measures i.e. driveways, culverts, power poles etc.
  • The survey is to be undertaken with appropriate traffic control if required and if required is to be in accordance with RMS “Traffic Control at Work Sites Manual”
  • 100mm Accuracy

SOLUTION

  • Use Nextcore UAV LiDAR as survey capture
  • Fly from 10 safe locations across the length of the site
  • Reduce static observations from survey grade base & LiDAR base against CORS
  • Survey connection to state survey marks & RTK GPS survey QC points across entire job length
  • Feature extraction from LiDAR point cloud
  • Survey features extracted in accurate 3D space

RESULT

  • 20km of Survey Accurate data captured in 2 days
  • Feature extracted & drafted in 4 days (compiled hours)
  • Delivered in 3 days from capture
  • Project delivery in 3D platforms as well as AUTOCAD in survey layers
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