in the State of Oregon and the 71st in the USA . In October 2016, the New Mexico Department of Transportation completed the first diverging diamond interchange in New Mexico. The interchange at NM 14 (Cerrillos Road) and Interstate 25 in Santa Fe was reconstructed to this interchange, and included replacement of aging overpasses carrying I-25 over NM 14 as well as adding traffic signals. In November 2016, the Delaware Department of Transportation completed the conversion of the DE-1 and DE-72 (Wrangle Hill Rd) overpass west of Delaware City, DE into a diverging diamond interchange. The interchange is viewable via live traffic camera on the DelDOT website. The first interchange in Canada opened on August 13, 2017, at Macleod Trail and 162 Avenue South in Calgary, Alberta followed by one in Regina, Saskatchewan the next year as part of the Regina Bypass project. The first diverging diamond interchange in Australia opened to traffic by the Queensland Department of Transport and Main Roads on November 28, 2019. The interchange, located in Caloundra, Queensland, connects Caloundra Road to the Bruce Highway. The former interchange was upgraded and converted as part of the larger Bruce Highway Upgrade Program. In December 2019, the Virginia Department of Transportation completed the conversion of the interchange at Courthouse Road and I-95 in Stafford, VA into a diverging diamond interchange. In 2020, the California Department of Transportation (Caltrans) completed the first diverging diamond interchange in California. An interchange at State Route 120 and Union Road in Manteca, California was converted to this interchange and opened to traffic on November 25. Use Operational , over 160 DDIs were operational across the world including: 3 in Australia with more planned 1 in Belgium 3 in Canada 1 in Denmark opened September 17, 2017 2 in France, built in 1970s 1 in Malaysia 2 in Saudi Arabia 2 in South Africa 1 in the United Arab Emirates 1 in Costa Rica Over 150 in the United States of America with 80 more under construction Advantages Two-phase signals with short cycle lengths, significantly reducing delay. Reduced horizontal curvature reduces the risk of off-road crashes. Increases the capacity of turning movements to and from the ramps. Potentially reduces the number of lanes on the crossroad, minimizing space consumption. Reduces the number of conflict points, thus theoretically improving safety. Increases the capacity of an existing overpass or underpass, by removing the need for turn