K Value
K value, abbreviated as K, is the horizontal distance required to achieve a 1% change in the slope of the vertical curve.
K Value formula
| \(\large{ K = \frac{ L }{ A } }\) |
Where:
\(\large{ K }\) = rate of vertical curvature
\(\large{ L }\) = length of vertical curve
\(\large{ A }\) = algebric difference in grade (%)