The long chord of a compound curve makes an angle of 20° and 38°, respectively with the tangents. The common tangent of the compound curve is parallel to the long chord that is 185 meters long. If the stationing of PC is 10+204.30, find the stationing of PT. Use by chord basis

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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.