Landscape spline tool

Do they plan on creating a way to make cross sections? Like in a modeling program where you take a edge of a plan and extrude on whatever points to make a cross section.

I would I guess overlap it but it looks bad because of the shadow that forms from the edges. I am trying to make a cityscape and want a way to make a large city quick.

so right now I am going through and thinking about the roadblocks of building the roads and being able to have intersections that look seamless and correct is important…I do have 3ds max but to me , if I have a easy system that I can make changes to on the fly it would help in the long run…anyway thanks for the help so far.

ill go in max and make center point for everything to connect to…i was just hoping landscapes would have that.