Superelevations of an existing road can be generated based on survey measurements of an existing road.
Use the command Draw existing superelevations <- CRO.
Draw existing superelevations <- CRO dialog box opens. Press the button Cross sections to open the CRO file.
Survey data prepared as a file type CRO is the input needed for the calculation of superelevations. The program calculates the superelevations for both left and right side of the centerline based on three points:
- Two points (left and right of centerline) with a ROADEDGE attribute and
- One point on the road centerline.
The result of the superelevations calculation is the lines drawn in the SUPERELEVATION rubric. Based on the superelevations of an existing road, you can design the superelevations of the new road.
