Neat

"Goggles Pizzano" (gogglespizzano) 04/10/2018 at 10:36 • Filed to: None

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OpposResidentLexusGuy - USE20, XF20, XU30 and Press Cars > Goggles Pizzano 04/10/2018 at 10:38

1

I run across a few of these around the state of Tennessee. Slightly confusing at first but work great.

Sampsonite24-Earth's Least Likeliest Hero > OpposResidentLexusGuy - USE20, XF20, XU30 and Press Cars 04/10/2018 at 10:44

1

illinois has a few of them too on I-88 running through chicagos western suburbs.

OpposResidentLexusGuy - USE20, XF20, XU30 and Press Cars > Sampsonite24-Earth's Least Likeliest Hero 04/10/2018 at 10:47

1

The main one I know about is the Exit on I40 at Gatlinburg(HUGE traffic area) but I’ve always been interested as it is about as touristy as it can get with new people using it all the time.

wafflesnfalafel > Goggles Pizzano 04/10/2018 at 10:48

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interesting - we have a relatively new interchange up here that has just a single crossover, right in the middle - but this looks like it might work better.

Rainbow > Goggles Pizzano 04/10/2018 at 10:52

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There are a few of these around Atlanta. They’re so much more efficient than other off-ramps.

Still, the most efficient exit here is just two roundabouts. I don’t know why America insists on coming up with new, elaborate solutions to congestion when the rest of the world already uses the most obvious solution.

Where have all the lightweights gone? > Sampsonite24-Earth's Least Likeliest Hero 04/10/2018 at 10:55

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Is there another one other than the I-88/IL-59 interchange? This design there has done wonders for traffic there at rush hour!

Censored > Goggles Pizzano 04/10/2018 at 10:56

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I’ve said this a few times on opposite, these are the greatest thing once you’ve done it a few times. My office recently relocated, but at our prior location I drove one of these every day. It easily saved me 10+ minutes on both ends of my commute. It was installed somewhere around 2008ish and was touted as the first 2 lane DD interchange in the states. As far as I’m concerned, every possible major interchange should be laid out this way.

Urambo Tauro > Goggles Pizzano 04/10/2018 at 10:58

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That video nails it. The DD looks like a clusterfuck at first, but all you have to do is follow the lines, signs, and signals. It’s really easy to get used to.

We just got one put up a couple of years ago here in Michigan, not far from FCA HQ. I love it. The only part I don’t like is that if you do happen to go through there after a heavy snowfall, before the plow trucks clear it, it can be tricky to estimate where the lanes are, compared to a right-angle intersection.

e36Jeff now drives a ZHP > Goggles Pizzano 04/10/2018 at 10:58

1

Couldn’t you take this even one step further and and an over/underpass for the crossover, thus eliminating a set of lights?

ttyymmnn > Goggles Pizzano 04/10/2018 at 10:58

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They put one of these in on I-35 north of Austin. It’s done wonders to lower the congestion at this intersection. This one also has a dedicated u-turn for southbound traffic.

Sampsonite24-Earth's Least Likeliest Hero > Where have all the lightweights gone? 04/10/2018 at 11:08

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you know what i thought there was more but yeah i guess its just the route 59 interchange. still neat though.

Svend > Goggles Pizzano 04/10/2018 at 11:12

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In the U.K. the common motorway junction:

Essentially a large roundabout.

Eric @ opposite-lock.com > Svend 04/10/2018 at 11:28

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These things work so well, too.

davesaddiction @ opposite-lock.com > Goggles Pizzano 04/10/2018 at 11:34

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It’s a good design, but decades of habit are very hard to break, especially when making a split-second decision. I almost got into an accident at one of these (actually the one he mentions - the first one in Springfield). I was decelerating on the exit ramp, coming up to a yield, I did a quick head check to make sure no one was coming, saw it was clear, and almost entered the roadway. Thankfully, at the last moment, I realized there were oncoming cars, just coming from the opposite side of the road than I was expecting...

MoCamino > Goggles Pizzano 04/10/2018 at 11:36

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There are several of these where I live. They work GREAT...if, and only if, they are not installed in an area where there will be a large amount of non-resident traffic. Put them in somewhere with a large amount of tourist traffic and madness will ensue. People lose their freaking minds if they’ve never seen one of these before.

Also, the news reports on the first day after new one is opened about drunk people trying to go the wrong way are comical. (As long as nobody gets hurt, anyway.)

Svend > Eric @ opposite-lock.com 04/10/2018 at 11:36

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It just looks overly complicated.

Demon-Xanth knows how to operate a street. > Goggles Pizzano 04/10/2018 at 11:58

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One of those is under construction less than a mile from my house.

DaftRyosuke - So Long and Thanks for All the Fish! > Goggles Pizzano 04/10/2018 at 12:33

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This guy has nothing but constant quality videos.

Urambo Tauro > e36Jeff now drives a ZHP 04/10/2018 at 13:57

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Like a dedicated bypass? Probably too expensive. A standard diverging diamond just reworks the surface roads on either end of the bridge, with minimal changes to the existing bridge itself.

e36Jeff now drives a ZHP > Urambo Tauro 04/10/2018 at 14:21

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Not a bypass, but have an over/underpass instead of the intersection where the lanes cross each other. Obviously that increases the price, but that seems that it would make the traffic flow even more efficiently. Combine it with actual merge lanes for traffic coming off the highway and you can have a high-throughput intersection with zero traffic lights and no need for anyone to stop at any point. The only point of potential contention I can see with that setup would be fighting for space on the merge over the bridge between people getting off the highway and people getting off and making the left to cross over it.

Urambo Tauro > e36Jeff now drives a ZHP 04/10/2018 at 17:38

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Yeah that would be nice. I wonder if that version of a diverging diamond exists anywhere.

Khalbali > Sampsonite24-Earth's Least Likeliest Hero 04/10/2018 at 21:10

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I drive a lot for work and know I’ve seen at least one other one but can’t remember where.

Khalbali > Where have all the lightweights gone? 04/10/2018 at 21:10

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I drive a lot for work and know I’ve seen at least one other one but can’t remember where.

Pistol Whipped Cream > Goggles Pizzano 04/11/2018 at 14:13

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They have a form of these in Utah. I dig.

Khalbali > Where have all the lightweights gone? 04/11/2018 at 17:24

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There’s one at 90 and Elmhurst rd lol just drove past it today.

Khalbali > Sampsonite24-Earth's Least Likeliest Hero 04/11/2018 at 17:24

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There’s one at 90 and Elmhurst too I just drove past today lol.