Diverging Diamond Intersections

Discussion in 'The Okie Corral' started by Bruce M, Aug 10, 2018.

  1. Bruce M

    Bruce M

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    Locally there is some hype about a couple new diverging diamond intersections that are about to open. Anybody have any? They are saying it will make traffic better and be safe as long as people follow the lane markings. Given our collective local drivers had more than a small amount of difficulty with HOV lane pylons I am skeptical.

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  2. PBCounty

    PBCounty

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    We haven't figured roundabouts out yet.
     
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  3. orangejeep06

    orangejeep06

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    Yes
    We have these in Maine on one of the turnpike exits.It's called a "splooey" up here by Maine DOT. Really.They're pretty easy to use as they're well marked out.
     
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  4. papershoot

    papershoot

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    I have not seen one yet. I like the roundabouts for low speed traffic.
     
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  5. pittpa

    pittpa What did I come in here for?

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    I believe they put that in south of here in Washington at PA Rt. 19 at its intersection with I-70. Did not know what it was called.


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  6. JArthurD

    JArthurD Silver Member

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    Civil Engineers......Never trust em!
     
  7. bgirls

    bgirls

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    Got our first less than a year ago, no accidents and the negative grumbiling stopped as soon as they tried it.
     
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  8. JArthurD

    JArthurD Silver Member

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    duplicate post deleted
     
  9. mhambi

    mhambi κολασμένος

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    I prefer the Reciprocating Rhomboids... but the Diverging Diamonds work pretty good too.
     
  10. bgirls

    bgirls

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    Been riding round a bouts (grew up calling them rotaries) since the 60's and driving them since 79. Very easy until the aggressive butt head enters!!!
     
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  11. MO Fugga

    MO Fugga Malt Liqra® Lifetime Member

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    Roundabout? No thanks.

    roundabout.jpg
     
  12. JohnnyE

    JohnnyE

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    I've been through the diverging diamond in Sarasota, Fla., at the University Blvd./I-75 interchange a bunch of times.

    University is a 6-lane divided road. Throw in the I-75 exit and entrance ramps, plus a large population of FOP's, and you could have a real recipe... though things seem to be running smoothly. I'd like to see the accident stats over time, though.
     
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  13. catman71

    catman71 Spewer of TROOF

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    I have a diverging diamond near my house.

    It actually works pretty good.
     
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  14. Hartford

    Hartford

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    Got a bunch of them along I15 here in UT. Your straight through blue and reds are I15 and the others are you're diverging lines.

    UT is home to some of the worst drivers in the country as rated by insurance companies and they aren't a problem. I like them. They allow left turns on red as you only have traffic coming from the right when exiting the interstates. It's pretty slick.
     
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  15. gwalchmai

    gwalchmai Lucky Member

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    Every time I go through one of those things I have that song in my head for an hour!
     
  16. janice6

    janice6

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    We have in Minnesota. The key is to make them only 100 feet across so nothing can merge/blend/diverge before the intersecting roadway.

    An added advantage is that semi-trucks get to ride the trailer over the center curb adding considerable thrill to the experience.

    If you design them like this, they have the allure of the European "roundabouts" without the versatility. Absolutely as useless as the previous 4-way stop.
     
  17. bipe215

    bipe215

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    One near Gatlinburg and we're getting one near my office soon. They seem to move traffic well.
     
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  18. Jon_R

    Jon_R

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    I have navagated the one in Lumberton a lot. In person it is really not that hard to do. Drawings and thinking about it is harder than actually driving it.

    They will open one near me soon in Vierra Fl. Land of a lot of senior citizens. We will see.
     
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  19. heavyduty

    heavyduty

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    We have two locally, and one of them I transit regularly. They work great.
     
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  20. SleeperSS

    SleeperSS

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    The first one in Washington is being planned for the I5/Marvin Rd interchange in Lacey...time will tell. Just north of there, they have two roundabouts that provide a good deal of entertainment...

    Of course, at the speed things happen in Washington, it will be obsolete since we'll all have Jetson cars.
     
    Last edited: Aug 10, 2018
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