Diverging Diamond Interchange - Similar Interchanges

Similar Interchanges

A free-flowing variation on the diverging diamond interchange, which could also be used as a junction between two freeways, could be created by replacing the traffic lights with bridges. Some of the disadvantages of this design would be added weaving movements and traffic merging into the outside (high-speed) lane. It is not known whether any such interchanges have been constructed.

There is also a proposed design called a double crossover merging interchange (DCMI), which includes elements from the diverging diamond interchange, the standard diamond interchange and the stack interchange. It eliminates the disadvantages of weaving and of merging into the outside lane from which the previous DDI variation suffered. It is not known whether any DCMI interchanges have been constructed.