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Split Lane Intersection

Hello,

I have to disagree with your comparison to a proper DCMI. This interchange design could probably be called a split diamond with grade separation, and I can see it has conflicting turns that cause weaving problems. The entries and exits to roads don't cause weaving as long as all the entry ramps to a road are positioned after all the exit ramps.

It has not the capacity of a DCMI because of this. You might be interested in the more common design of this type or style which has doubled entries and exits and braided ramps in the middle, this highway design manual [www.dot.ca.gov] for example, calls it "type L-3."

I hope this helps you, good luck with making interchanges!