Wednesday, June 15, 2011

Complexities of a Mobile LiDAR Survey

A few weeks ago, my fifth article for LiDAR News was published.  The article, titled "Complexities of an Urban Survey," discussed our recent collection of Charleston, WV.  The collection encompassed an incredibly varied urban and rural environment along 350 miles of public rights of way (collected in opposing directions).  Through project planning, we attempted to mitigate or minimize the known challenges we were going to face.  

The images presented in the article are shown below:

As the article states, we established control target layout for a local survey firm.  Above is a representation of a Google Earth KMZ depicting the control point layout.

Each SBET (sometimes a few a day due to weather) were exported to a Google Earth KMZ to perform cursory review of status.

Our Mobile LiDAR crew and Program Manager, Aaron Morris, provided an "Open House" to city staff and the media.
My next article for LiDAR News will be on the Position and Orientation System.  Should you have a topic to consider, leave me a comment.



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What is Mobile LiDAR?

Mobile LiDAR (Light Detection and Ranging) systems are comprised of vehicle-mounted lasers, cameras and GPS/INS navigation systems to capture highly-detailed and accurate three-dimensional (3D) topographic information for surveying and engineering applications. Michael Baker International became an early adopter of Mobile LiDAR technology by acquiring our first system in 2009, with further expansions in 2014 and 2015 that increased our fleet to four (4) Optech Lynx SG1 Mobile LiDAR systems. Over that period our systems have completed more than 300 projects throughout 29 different U.S. States (and multiple countries), and encompassing hundreds of thousands of miles. Our project portfolio includes applications in roadway design, 3D modeling, railroad corridors, signaled intersections, utility infrastructure, asset management, pavement condition assessment and airport infrastructure.