Would you drive on this FLIP-FLOPPED interchange? (It's better in every way!)

America loves "diamond" highway exits. Which is too bad, because when life gets busy, they work pretty terribly. Gil Chlewicki, the "adoptive" father of the Diverging Diamond Interchange (DDI), explains why it's time to untangle our freeway interchanges. Buy me tacos 😀🌮►   / roadguyrob   Ask a road question ► https://www.roadguyrob.com/interchange ----------------------- Sources cited: ----------------------- "New Interchange and Intersection Designs: The Synchronized Split-Phasing Intersection and the Diverging Diamond Interchange." Chlewicki, G., Transportation Research Board, July 2003. https://trid.trb.org/view/755629 "UDOT Diverging Diamond Interchange (DDI) observations and experience." Rasband, Forbush, and Ash, Utah Department of Transportation Research Division, 2012. https://digitallibrary.utah.gov/awweb... "Alternative Intersections/Interchanges: Informational Report (AIIR)." Bared, J., Federal Highway Administration, 2005. https://www.fhwa.dot.gov/publications... ----------------------- Newspapers: ----------------------- "Engineers Chosen For U.S. 19 Work." Tampa Bay Times, March 1, 1974, p. 9B "Overpass is Simple—If Driver Knows How to Navigate It." Pinellas Times, January 13, 1974, pp. 1,3 "Growing a Bridge in American Fork." Provo Daily Herald, August 21, 2009, p. C1 "New Interchanges May Ease I-15 Congestion." The Salt Lake Tribune, May 21, 1993, p. D1 "First in U.S. 'diverging diamond' highway interchange." Springfield News-Leader, May 29, 2008, p. 1B "Diverging diamond has residents excited." Springfield News-Leader, January 14, 2009 Photo, Ozarks News-Leader, July 2, 2008, p. 11 "Interchange will diverge from norm." Springfield News-Leader, June 25, 2008, p. 1 ------------------------- Time sections: ------------------------- Introduction: (0:00) Diamond Love: (1:01) Gil Goes to France: (2:42) SPUIs: (4:59) How DDIs Work: (6:54) Gaining Acceptance: (9:58) America's First DDIs: (12:19) Lessons Learned: (14:51) What About Pedestrians?: (20:04)