Related Media Gallery for Innovative Traffic Interchanges Help Drivers Avoid Crashes, Save Lives
May 11th, 2016
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DDI Interchange
Overview of Diverging Diamond Interchanges, or DDIs, that divert drivers to the left side of the road prior to merging onto an interstate, freeway or highway.
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Carlos Sun
Carlos Sun and his team found that Diverging Diamond Interchanges (DDIs) are safer and save lives. Photo:
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Henry Brown
Henry Brown investigated common practices for diverting traffic while constructing and later maintaining geometric interchanges. Photo:
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