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LiDAR Surveys

Realtime utilizes the most advanced LiDAR survey technology for the evaluation of existing transmission lines and for route/design determination of new transmission lines. Collecting millions of survey data points, with accuracy within inches, LiDAR technology enables rapid analysis of lengthy transmission lines. When incorporated with PLS-CADD, this technology facilitates prompt engineering and remediation solutions.

LiDAR Surveying Facts

  • LiDAR surveys provide absolute accuracy (10 cm vertical – 15 cm horizontal)
  • Relative accuracy 3–5 cm
  • Point density is 10,000 pts/sec, 20 pts/sq meter
  • Class I, eye safe laser
  • Laser penetration
  • Corridor width – 150’ (300’ with limitations)
  • Multiple passes can be made
  • Capacity – 75 miles of LiDAR survey per day
  • GPS base station ground control 10–15 miles apart
  • 4–6 GPS base stations to provide high degree of accuracy
  • (6) Satellite triangulation

Limitations

  • No boundary survey data
  • No underground utilities data
  • Snow (prevents surveying in winter)
  • Not cost effective for surveys under 20 miles

 

Benefits

  • Faster (75 miles of data collection per day)
  • More data than conventional surveys
  • Engineering quality data
  • Reduced surveying costs (up to ½) for 40 plus miles
  • Future data retrieval
  • Down and forward videos
  • Joint use of information (Engineering, Planning, Real Estate, etc.)

Post Processing Laser Data

  • Digitized mapping
  • As-built study model
  • Plan & Profiles
  • Down and forward viewpoint videos
  • Infrared thermal video imaging
  • GEO- referenced Images
  • USGS
  • Aerial photography

Video of 3-D LiDAR (with PLS-CADD Tower overlay):

3D LiDAR Tower Video

 

 

 

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