April 2011 Archives
WGM Group surveyors recently teamed with MT LiDAR to preform LiDAR mapping on 3rd Street in Missoula. LiDAR is Light Detection and Ranging, and is an optical remote sensing technology that can measure the distance to, and other properties of an object by illuminating the object with pulses from a laser. When used on an aircraft platform it creates a "point cloud" image of the ground and ground structures from the reflected laser pulses. Large areas can be mapped with LiDAR for structure locations and ground elevations. This technology is rapid and reduces mapping time and the risk to field survey personnel attempting to map streets and other features using ground techniques.
For 3rd Street this data will be used for road, sidewalk, drainage, and utility design, as the LiDAR provides very dense ground elevation points and the locations of houses, overhead utilities, ditches, bridges and other structures. The LiDAR data will aid in more complete and comprehensive design with lower construction costs arising from changes in design at the time of construction.
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