Module 9 Control Survey |
Control surveys are conducted to establish a system of horizontal and vertical control points over the area to be mapped. These are connected with high precision stations through control surveying. The horizontal control points can be established by different field methods such as triangulation, trilateration, traversing or by using GNSS receiver. The vertical control is usually accomplished by leveling (Lesson 4). These positions are required for further detailed surveys. Objective of Module 9 Objective of module 9 is to explain in detail the establishment of horizontal control point by traversing.
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