Articles by David Harrell, PE

Descending into the Depths

When the Tennessee Department of Transportation (TDOT) began surveying in 2002 for a proposed highway in eastern Tennessee, it stumbled onto a deep problem. The proposed highway, Interstate 475, is set to connect Interstate 75 in Loudon and Anderson Counties. But during environmental and archeological investigations associated with the I-475 project, it became evident that the presence of caves would have a major impact on the proposed location of the highway.
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HxGN Live

More than 3,500 attendees from more than 70 countries attended HxGN Live, the annual Hexagon AB user conference, at the MGM Grand Hotel & Casino in Las Vegas on June 3-6. About 450 keynotes and panel discussions were held, and several companies from around the world exhibited their geospatial products. Here are a few snapshots from the event.

POB

POB October 2014 Cover

2014 October

In this October 2014 issue of POB, we explore cities across Europe pursuing new sustainable energy policies. Also, read how 3D laser scanning produces a winning topographic survey for a high school football field and running track.

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