About 20 years ago, when surveyors of the city of Huntsville, Ala., keyed in subdivisions via plat or legal description based only on estimated section corners, a subdivision could be as much as 50 ft off from its true location in any or all directions. Every department in the city worked off different base maps, different scales and different compilation years back then. There was no consistent data.
In the April 2017 issue of POB, find out how 3D tools played a role in the renovation of the Institute of Civil Engineers headquarters in London. Also, POB releases the results of its 2017 3D Surveying Trends Study.