Q2/ A grade gl of + 1.23% intersects grade g2 of - 2.75% at a vertex whose station 18+00 and elevation are and 270.190m, respectively. An equal-tangent parabolic curve L= 200m long has been selected to join the two tangents. Compute and tabulate the curve for stakeout every 20m.
Extracted text: Q2/ A grade gl of + 1.23% intersects grade g2 of - 2.75% at a vertex whose station 18+00 and elevation are and 270.190m, respectively. An equal-tangent parabolic curve L= 200m long has been selected to join the two tangents. Compute and tabulate the curve for stakeout every 20m.