How do you add profile grade line ( left and right ) to the new SS4 modeler. Is it similar to the old geopak were you have two chains give them a profile
Point Controls would be applied to the points on the template representing the PGL lines to provide vertical control.
Exercise 6.5, beginning on page 238, of the "FDOT Roadway Design and 3D Modeling" training manual gives an example of how this can be done.
http://www.dot.state.fl.us/ecso/downloads/documentation/FDOTRDAnd3DM/Files/FDOTRoadwayDesignand3DModeling-Master.pdf