Define Vertical Curve Set

Question

Hi 
 I am facing a problem in Inroads SS2 in define vertical curve set when I am trying to use Vertical Curve Calculate by I am only getting radius, tangent and pass through but not able to get using K value or length in the menu. 
 
 How I can solve this problem ?

Chris Key · Answer

It sounds as though the vertical alignment is set to a "Circular Definition" instead of a parabolic definition. You will not have the options for K value if working with a circular vertical curve. You can try changing this value on the existing Vertical alignment through the InRoads Explorer > Geometry Project by a right-click on the vertical alignment to set it to a Parabolic Definition. 
 
To change this setting so that new geometry is set with the Parabolic definition when it is created, go to File > Project Options > Geometry > Curve Definition > Vertical = Parabolic.