Importance of Topographical Surveys
The importance of topographical surveying is clear: without a visual depiction of topographic information, we lack the ability to identify our position and orientation. This visual – often in the form of a map – is enabled by means of topographical surveying. Daily, we look to our smart phones and other devices to geo-reference a point of interest somewhere, whether with an exact address or by pure speculation. All of this information is geo-referenced and rooted to a topographic database of information accumulated over time, through numerous topographic surveys.
Knowing the topography of surroundings is of great use for estimating costs related to projects of construction, resource exploration, forestry, farming, civil design and other such developments.
Furthermore, a land survey can help to rectify any potential errors in larger scaled surveys. Imagine independent local topographic surveys around towns A & B. These surveys begin from different origins and – once they meet halfway between – errors in coinciding positions are found. Localized surveys can further help to determine error propagation procedures.