Topographic surveys are very useful in surveying public land. This gives a clear picture of the topography of the land along with the natural features and man-made buildings on the particular land. An exact figure is obtained for all the features of the land including its size, height and natural changes that have occurred over time. Include details about the fencing of the land, the hills, the trees, and the buildings in that area. You can also see all the hills, valleys and streams in the area. Any other natural improvements that have been made in that area such as roads, bridges, and railways are also marked. This type of information is very important for people who are landlords, owners of industrial sites and also for people who are involved in building construction.
In the United States, the public survey system is the most common method of subdividing and describing land. This also includes wild and undeveloped land. All land in the United States is subject to the rectangular system of surveying, and it is divided into townships of six square miles. They are further divided into thirty-six square mile sections, which are further divided into quarter sections, quarter quarter sections, and irregular parcels. The public measurement system has placed permanent monuments to delimit the sections to locate the parcels. Originally, the markers were just trees, rocks, or wooden posts. Now the government has made permanent markers inscribed on tablets that are attached to iron or cement rods.
A survey is needed whenever the land changes ownership, or when the owner wants to make a change to the land. This is also known as contour lifting. The distance from the ground is measured. Horizontal surveys include a depth boundary survey and residential surveys. The measurement is done with electronic instruments and the results are seen as contour lines on terrain maps and not as stakes or any other terrain markings. Survey methods include aerial survey, ground survey, or a combination of both methods.
For purposes of public topographic survey, topographic plans or maps are made. Hydrographic charts are also made to particular scales, contour interval and precision are specified. It also includes all kinds of survey processes, calculations for the survey, and compilation procedures for all the information that is collected through the survey.
Land surveying helps architects and engineers design buildings and develop properties. It is useful for making drains and trenches. Details about the elevation in an area give us an idea of the slope there and therefore help decide on building in that area.
The public survey system of the survey of a place is very essential for all the people who want to have some deal with the purchase, sale or construction in a place. You have to clearly know the topography, to know if you can build there and what kind of construction can be done. Public services in the area will be clearly signposted. You will be able to find out where exactly the land is marked with the markers and what are all the natural and man-made features in that area.
With all of the above information that is available when surveying the public area, a person who buys land, sells land, or builds a building will be able to decide what they want to do with the land.