The CFI is a relatively new intersection design that has been implemented in a few states at locations with high traffic volumes, including high left-turn volumes.  This design removes left turning vehicles from the main intersection which then allows higher green time for the main line.  Delays can be reduced significantly compared to a conventional, signalized intersection.  It is also significantly less expensive than a full interchange.  It can be designed with two or four advanced left turn lanes – depending on the volumes.  Due to the number of segments to cross, there are issues with creating pedestrian-friendly facilities within a CFI.