The design of the road begins with the selection of the most favorable route for the project; from which the geometric design of the road is established; subject to a series of parameters that satisfy the proposed objectives for the location; construction and conservation of the work. this design consists of a top view alignment along the axis; which is the phase constituted by the layout of the highway; by consecutive tangents joined by arcs of circumference of a single radius or simple circular curves; compound circular curves or spiral curves. taking into account; that simple circular curves comprise basic control in the design of a road; a field practice was carried out using the method of deflections and ropes to stake out the curve