Topographic surveys are studies of the area in which natural and artificial objects are identified. For example, buildings, improvements, fences, elevations, land contours, trees and waterways. Therefore, they are measured according to their elevation on a given plot of land and are presented in the form of contour lines on the plot. Sometimes the government demands topographic surveys. Engineers and architects also use topographic surveys in designing improvements or developments on the site. Unlike boundary or residential land surveys, topographic surveys are more focused on elevation than horizontal measurements. Most measurements are made with a geodetic quality GPS unit or with an electronic EDM tool. The survey results are not marked with bets or other guidelines, as with most other area surveys. Instead, they are represented as contour lines on a map of the earth. Today, complex computer programs allow you to create digital versions of these maps, as well as interactive views of the area. The data can be used in AutoCad programs where engineers or architects can manipulate it to show how the topography will change after the planned improvements. Topographic surveys have many uses. In some cases, they could be requested by the government. Engineers and architects use these surveys to design buildings or other improvements that will be built in the area, since existing elements can influence their design or decisions about where to place the structure in the area. All construction projects begin with a topographic survey that informs the starting point of the land before making improvements. Topographic surveys can also be used to determine the best plan for drainage, ditches, and other features, using the natural landscape as the basis for such improvements. The survey will also capture any slope on the ground, which is particularly important if you plan to build on the ground, since the 8-degree slope is the limit for economic construction on a hill; The steeper slopes, as a rule, are economically inappropriate for construction purposes due to higher foundation costs and other requirements. A survey conducted before the purchase of land can ensure that the characteristics of the land are suitable for the intended use. Besides undeveloped land or unstructured land, this type of land survey is also useful in cases where the area has been previously used, but is now being rebuilt. For example, topographic surveys can be carried out after the demolition of a building or a quarry, a landfill or other area with changing topographic data. In these cases, this survey will give an accurate idea of how the soil has changed after its use, which will help to better plan its future use.
