Calculate Curves

Click an icon to open the calculation task:

Curve
To calculate the full set of curve parameters from length and radius parameters.
3Pt Curve
To calculate the curve parameters from three points: the PC point (start point of the curve), PT point (end point of the curve) and any point on the curve, or the PC point, PT point and Radius point.
PI & Tangents
To find the PC point (start point of the curve), PT point (end point of the curve) and Radius point from the PI point (point of intersection), radius, and directions from the PI point to the PC and PT points respectively.
Radius & Points
To calculate the curve parameters and the coordinates of the Radius point from the start and end points of the curve and a radius parameter.
Spiral
To calculate the full set of spiral parameters from curvature change parameters and spiral length.
Traverse
To calculate the full set of traverse curve parameters and the coordinates of the PT point (ending point of the curve) from one length and one radius parameter.
Vertical Curve
To calculate the vertical curve parameters and find stations and elevations for points of vertical curve.