I would like to have a new terminating intersection shape created for the end points which is not possible under a joint, junction, crossing, or roundabout (that I know of at this time). I would like a simple square option for a terminal end point of the street network that matches the width of the street (width*width).
I've played around with the roundabout using inserted shapes on its edges and vertices and didn't like the results. Also tried manipulating the roundabouts shape parameters (precision =0, innerRadius=0), but to no avail.
With a little CGA manipulation, this square shape could be very versatile (not just for streets) but network type ideas.