I have created a surface for a cul de sac using arcs that were then given elevation to contour the Cul De Sac.

The engineer has come back to modify the cul de sac raising it 1.5 feet and instead of sheeting at 2% across the surface he has rasied the Centerline Profile. I have tried to just change the elevations at the end of each arc that makes up the Edge of Pavement of the Cul De Sac. The edit command seems to work but the graphic does not move. I get two points that when I draw a line between them the line is .18 but both items report that they are at the same elevation.

not a .18 difference.

What version of TBC are you using?

Does the line have a parabolic curve?

IF the segment being offset is only a portion of a vertical curve then the curve has to be linearized into multiple segments that approximate the original curve. Hence "random" VPI points. The elevation at the ends should be the same. From the sample I tested we are going to make a small change to increase the tolerance used so the elevations match to a higher precision.

Can you send a file with just the lines you are looking at, so we can evaluate your specific data.

thanks

tim