Question: Question 1 : There is a PI located on a horizontal alignement ( station 4 0 + 0 0 ) of a four - lane

Question 1: There is a PI located on a horizontal alignement (station 40+00) of a four-lane
divided highway with at 90kmh design speed that has a =20 degrees. Assume 8% as the
maximum super elevation and 5% for the superelevation of the curve. Determine the radius, PC,
and PT for the curve. Then calculate the appropriate critical superelevation transition points
about the PT assuming that spiral curve is used.Question 1: There is a PI located on a horizontal alignement (station 40+00) of a four-lane
divided highway with at 90kmh design speed that has a =20 degrees. Assume 8% as the
maximum super elevation and 5% for the superelevation of the curve. Determine the radius, PC,
and PT for the curve. Then calculate the appropriate critical superelevation transition points
about the PT assuming that spiral curve is used.
Question 1 : There is a PI located on a

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