The main purpose of any ground survey is to

The main purpose of any ground survey is to make an accurate map of a part of the earth's surface. A ground survey involves measuring and recording various features of the earth's surface, such as terrain, elevation, and the location of man-made structures. These measurements are then used to create an accurate map of the surveyed area. Ground surveys can be used for a variety of purposes, including urban planning, construction, land-use planning, and scientific research. By providing accurate information about the surveyed area, ground surveys can help ensure that projects are designed and executed effectively and efficiently. While ground surveys do involve measuring lines, angles, and other features of the earth's surface, their primary purpose is to create an accurate map of the surveyed area. This map can then be used for a range of applications, such as navigating, planning, and analysis.