This is neat!

Very nice map, too bad the highways have no medians though. Real life highway standards require medians so there is a central reservation for supporting bridge structures, spanning bridges to a central structure is very much cheaper.

Standard intersections with medians won't work because of this and building a collector/express system could be very costly because it becomes impossible to span just one or two bridge segments across 12 lanes of 4 highway roads.

Some real-life cities route public transit systems like light railway along most of a road link in the median, circumventing any intersection nodes along the way of course.

Oh wow, I just got back from the Salida area, we stay further north but what a gorgeous rendering of a beautiful area.