GPS-controlled excavators were proposed to excavate the
contaminated top soil applying lean principles (reducing if possible
any waste such as rework, too much, or too little excavation) and
more accurate estimates. The general contractor asked the research
team to conduct a performance analysis of the developed UAV system.
As explained earlier, survey and documentation of results with a RTSbased
surveying approach was compared to the automated UAVdirect
geo-referenced mapping approach. Both results were referenced
to a global coordinate system that was eventually used to control the
excavating equipment. The following explains procedures and results.