Thursday, January 2, 2014
© Copyright 2015
Gwinnett Daily Post
I appreciate the good press (“Diverging diamond interchange improves Pleasant Hill traffic,” Jan. 2, 1A) about the diverging diamond interchange (DDI) at Interstate85/Pleasant Hill Rd., which is up and running, and the upcoming DDI at I-85/Jimmy Carter Blvd.
I have long been a proponent of the DDI concept when I first learned of the DDI proposed for I-285/Ashford-Dunwoody Rd. which has greatly improved the safe flow of traffic through that intersection. Via an on-line reply to a previous DDI article in the Daily Post, I advised readers to type DDI at I-44 & Kansas Expressway into their search engine and they would find a good site on the I-44/Kansas Expressway DDI in particular and DDI’s in general.
Both DDI’s in Gwinnett are associated with Joe Allen’s Gwinnett Place CID and Chuck Warbington’s Gwinnett Village CID. Both CID’s have skin in the game, so to speak, as both CID’s have invested money to effect their respective DDI’s. Although Warbington did not mention another innovative outside of the box solution to facilitate the safe flow of traffic, I would like to take this opportunity to do so. The innovative solution I speak of is called a Continuous Flow Intersection or CFI.
Warbington has proposed a CFI at Jimmy Carter Blvd./Buford Highway which, at one time, was among the worst intersections in Gwinnett County from a traffic accidents standpoint. Yes, Warbington’s CID does have skin in the game should a CFI at this intersection become a reality. I wish I could thoroughly explain how a CFI works but truth of the matter I suppose I will have to wait until same becomes a reality and go through the CFI learning curve as I did with the DDI at I-285/Ashford-Dunwoody Rd.
I do not know whether or not the CFI proposed at Jimmy Carter Blvd./Buford Highway will make the cut on the 2013 SPLOST intersections improvement project list or not as there would be federal, state, county, and CID monies involved. Translated, this means you would have a lot of hands slicing the pie. However, the CFI, like a DDI, is a less expensive way to facilitate the safe flow of traffic through what was once a dangerous intersection and as such, is worth informing the public about.
James H. (Jimmy) Orr, Jr., Bethlehem