Q2- In a traverse ABCD the angles to the right are measured and the azimuth of the lines PA and DR are (160° - 125°20') respectively. Calculate the azimuth and the quadrantal bearings for all sides of the traverse. P AZ PA=160° 82°30' 237°10' 119°40' 246°00' AZ PA 125 20 R

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Control Survey and Geodetic reductions

Control surveys or survey controls are used to establish reference points as a basis for various construction activities. Vertical and horizontal control points are to be established in a control survey to increase accuracy. After establishing the control points, all other types of surveys such as topographic, right-of-way, aerial mapping, construction layout, boundary surveys, and utility mapping can be worked upon so that control networks can be formed. The place from which the observations are made is called a survey station.