A roadway goes from tangent alignment to a 250-m circular curve by means of a 68-m-long...

 

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A roadway goes from tangent alignment to a 250-m circular curve by means of a 68-m-long spiral transition curve. The bearings of the tangents are N 44 E and N 72 E. Use formulas to compute Xs, Ys, p, k and T'. Assume that the station of the PI, measured along the back tangent, is 17+ 76, obtain the stations. A roadway goes from tangent alignment to a 250-m circular curve by means of a 68-m-long spiral transition curve. The bearings of the tangents are N 44 E and N 72 E. Use formulas to compute Xs, Ys, p, k and T'. Assume that the station of the PI, measured along the back tangent, is 17+ 76, obtain the stations.