LiDAR testing under heavy tree canopy and in steep terrain.

Details

• Creators:
  Reed, Timothy R.
• Corporate Creators:
  Alaska. Dept. of Transportation. Research, Development, and Technology Transfer
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Global Positioning System
  • High technology industries
  • Laser radar
  • Vegetation
  • Terrain evaluation
  • Mapping
  • Topography
  • Accuracy
• Publication/ Report Number:
  FHWA-AK-RD-14-03 ; AKSAS #60934/T2-08-10 ; Federal # HPR-4000(077)
• Resource Type:
  Tech Report
• Geographical Coverage:
  Alaska
• Corporate Publisher:
  Alaska. Dept. of Transportation and Public Facilities. Research, Development and Technology Transfer
• Abstract:
  The objective of this project was to evaluate the accuracy of light detection and ranging (LiDAR) for topographic information in  ; support of a transportation project for the Alaska Department of Transportation & Public Facilities (Department). In particular,  ; accuracy in steep terrain and varied vegetative cover was evaluated. LiDAR acquisitions in Southeast Alaska were compared to RTK  ; GPS survey acquisition. Comparison of the LiDAR to ground survey showed significant differences for the Ketchikan to Shelter Cove  ; project evaluated, this may be due to vertical datum issues, improper geoid model selection, post‐processing methods that were not  ; sensitive enough, inaccurate GPS readings, improperly located GPS base stations, calibration report inaccuracy, and extremely thick  ; vegetation canopy. By comparison, areas with less steep terrain, less dense vegetation, and better controlled LiDAR compared more  ; favorably to the ground survey points.  
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/27853/dot_27853_DS1.pdf
• File Type:
  [PDF - 1.55 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:7a0a49a3a92870844c6e7f6cadd2dedbe932321e9849df6d1b219ff4f3bed3d3