Highway Engineering - Vertical Curves

A downgrade of 1 in 100 meets an upgrade of 1 in 125 on a road. If the rate of change of grade is 0.10% per 30 m, the length (in m) of the vertical curve between the two grades is ________ (rounded off to the nearest int...

$G_1$ and $G_2$ are the slopes of the approach and departure grades of a vertical curve, respectively. Given $|G_1| < |G_2|$ and $|G_1| |G_2| \neq 0$ Statement 1: $+G_1$ followed by $+G_2$ results in a sag vertical curve...