Hornet-Head Interchange
A heavy duty interchange that merges two parallel highways or splits one into two. Both highways are 4-lane highways, using 2-lane ramps.
This is no express-lane to collector-lane and vise versa interchange.
Advantages:
– No weaving
– Little grade separation and smooth slopes
– Should not need extensive terraformig for placement
– All roads are freely up- or downgradeable
Disadvatages:
– Quite large footprint