The Preliminary Survey
A classic task for surveyors is establishing the situation as-is. In some sectors, this task has been revolutionised by the aid of UAVs and digital cameras. The bird’s eye view permits the quick, precise and complete capture of all visible elements of the measured area, with correct heights and orientation. Resurveying for forgotten or later assigned elements becomes redundant, as a 3D likeness of reality has already been created.
In many of the following examples we will constantly arrive at the conclusion: Why send a human into danger when a UAV flyover can cover all bases?