The conclusions extracted by these study was that the DDI configuration increases in value of different MOEs with more volume, especially with the increase of ramp volume. The least beneficial scenario was found to be when the arterial volumes are heavy, and the ramp interchange traffic is lower. The DDI operated better than a conventional diamond in all scenarios, in of having fewer lanes in the bridge area, and as the volume increased, the more benefit the DDI became over the conventional diamond, even when running with fewer lanes and having the diamond having protected-permitted phasing. Some of the recommendations were that a comparison of the diverging diamond interchange concept to other interchange configurations, including partial clover leaf and diamond interchanges with roundabout ramp terminal intersections should be conducted.