Horizontal control surveys coordina

Horizontal control surveys coordinate horizontal positional data. These positions can be referenced by parallels or plane coordinate axes. Because they are used as a framework for other surveys, these surveys must be precise and accurate. These surveys provide a network of monuments or points on the ground that can be used as the control for any other surveying project, such as a boundary or construction survey. The advantages of using a horizontal control survey is that lost monuments can be replaced accurately, surveys can be coordinated, more than one network station can provide a check to the work, and a reduction in the cost of the project can be achieved. Most horizontals should (and will) be connected to the control network.