Why America Is Building "Turbo Roundabouts" - How Do They Work?

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✵ Why America Is Building "Turbo Roundabouts" - How Do They Work?
✵ Roundabouts, a very simple traffic intersection idea, where cars travel in one direction around a circle, with yield signs for incoming traffic instead of the traffic lights most people were used to. Modern roundabouts were introduced in England in the 1950s, and they began to be widely built across that country after that. In America, the first roundabout was built in 1990 in Summerlin, Nevada. A planned community on the west side of Las Vegas. From there, they started to spread around North America aswell. But they aren’t perfect for every situation. There are definitely certain roundabouts that are dreaded by locals, feeling chaotic and crowded, and resulting in alot of accidents, which ends up defeating the purpose of the roundabout all together, which was likely installed to reduce these accidents and fatalities. Because of this, alternatives have been designed. One of these is the turbo roundabout. A design created to eliminate lane changes, slow things down and make them run smoother, in turn working as a safer version of the original roundabout design. So today I’m going to give you a bit of info on what this is, why it’s here & why it could be better or worse.
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Опубликовано:

7 июл 2024

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Комментарии : 280

@kevinpowers2959 4 месяца назад

The newest wisdom in traffic engineering: make drivers too confused to crash

@PrivateMcPrivate 4 месяца назад

Murica style!

@biglos9d 4 месяца назад

Confusion means they slow down, dramatically increasing survival rates in a crash

@TheNobleFive 4 месяца назад

@@biglos9d I was about to say. Confusion isn't the right word but this has been done for a while in some places. Streets designed to slow vehicle speed down.

@TheFinalLT 4 месяца назад

Confusion isn’t the right word. It’s not hard to go straight and turn right sometimes. Americans are just resistant to change and modernization. Things that are different from the norm scares them. Lol

@kevinpowers2959 4 месяца назад

@@TheNobleFive that's exactly my point though. We've gone past "a little bit of beneficial stress" and gone to over-complicated and confusing designs with diminishing efficiency returns. More of a good thing is not always better.

@BadStructuralEngineeringFirms 4 месяца назад

I drove the new roundabout near Hollister, CA. It has reduced crashes at this intersection. Before it came it, I saw drivers running red lights. It has made traffic going towards Pinnacles National Park flow smoother.

@900distribution7 2 месяца назад

Not according to CHP stats. Has had the opposite affect in terms of safety. 1 crash every 2.5 days as opposed to 1 crash every 8 days previously.

@sprunkadct 2 месяца назад

I never saw people run a red light at that intersection, lol.

@kailahmann1823 4 месяца назад

One rule from the Netherlands however: never (!) mix turbo roundabouts with bike- or pedestrian infrastructure. Instead you must build an over- or underpass. This also makes them close to impossible within a city. But everything is better than double-lane roundabouts, which are far to common in the US (and usually completely useless).

@markdebruyn1212 4 месяца назад

Schiedam has one within the city

@keithc5729 4 месяца назад

The first roundabout in the united states was 1905 in New York. In 1930 the roundabout in Long Beach CA was built.

@RobBCactive 4 месяца назад

I believe there was a difference, the so called traffic circles had the turning traffic yield rather than the approaching. Oddly the Netherlands still had that type despite roundabouts being common in Europe, my impression was they were far more dangerous as turning cars would stop suddenly as cars arrived just after each exit.

@MichaelPKelly-hg5jo 4 месяца назад

I drove the Calif one on opening day -- twice, for fun -- which was just this past Thursday. A massive truck almost hit me at full speed there one night years ago after that driver ignored the red and my green, so I'm happy to see this roundabout.

@Meaisk 4 месяца назад

Turbo roundabouts work very well, so much better and safer than regular 2 lane roundabouts. We don't build them anymore in the Netherlands.

@whylifeis4 4 месяца назад

Turbo Roundabout • The Gigachad of the Traffic Circle

@edwardmiessner6502 4 месяца назад

Traffic circle hierarchy: traffic circle -> gyratory circus* -> rotary -> roundabout -> spiral roundabout+ -> turbo roundabout. * Place de L'Étoile, the traffic circle around the Arc de Triomphe. + Like a turbo roundabout but with lane stripes only, and each lane goes to a specific destination.

@MrTruehoustonian 4 месяца назад

Sounds like a Nascar kind of idea😂

@sprunkadct 2 месяца назад

Just need to make sure where you place it 😬

@leoncchow 4 месяца назад

You don't lane change in a roundabout. The turbo roundabout forces you to stay in your lane and exit or stay in the roundabout as you should.

@Forseti2 Месяц назад

Well, technically yes (in classic roundabout) - the outer ring is for shorter routes in roundabout (when you exit it in first exit) and inner ring is for longer routes (2nd, 3rd exit or complete U-turn)

@NoirMorter 4 месяца назад

I've been on both types of round abouts and many traffic circles. The first couple times they suck but you can get used to them quickly.

@FJA--- 4 месяца назад

The main problem with building these in the US is that it makes the roads smarter than the people driving on them. We live in a country where the majority of the licensed drivers don't understand how traffic lights, yield and stop signs work.

@noseboop4354 4 месяца назад

Not to mention a lot of people drive without bothering to get their driver's license (or have it suspended after bad driving), and these people cause the most accident.

@davidfrischknecht8261 4 месяца назад

The majority don't understand how turning-only lanes work, either. If you're in a turning-only lane, the only thing you can legally do is turn, so you don't need to use your turn signal.

@nixon2tube 4 месяца назад

@@davidfrischknecht8261I know right! If I'm in a left turn lane that allows for a U turn and I intend to, then I use my left turn signal. I've seen people put on their right signal to inform me they would be proceeding into a roundabout.

@robertwazniak9495 4 месяца назад

As a 40 year designer and builder of roads and highways, I can confidently say we designed and built them for drivers with a kindergarten education… unfortunately, there are drivers out there that are more like two year olds having a temper tantrum in the candy aisle. Every time we designed something “idiot proof” along comes someone determined to prove that we have given too much credit to the driving population.

@marklittle8805 4 месяца назад

Less accidents and less serious accidents with roundabouts. This just in: traffic lights mean most collisions in them are not gentle... roundabouts are glancing blows

@kollibriterresonnenblume2314 4 месяца назад

these were new to me. Good summary and illustrations, thanks.

@nothat0therguy992 4 месяца назад

Personally I never understood how people are confused by roundabouts, it's not that complicated to navigate. Maybe it's because my state has been building to roundabouts for years unlike many places. The earliest roundabout I remember was put at a very Dangerous junction of I-75 and state highway 81 back in the early 2000s and it made a significant difference in crashes and traffic flow

@cocazade7703 3 месяца назад

What state is that?

@nothat0therguy992 3 месяца назад

@@cocazade7703 Michigan, the state has definitely embraced the roundabout as they replace at least a couple intersections with roundabouts pretty much every year

@kimsmoke17 4 месяца назад

3:22 Germany is in Eastern Europe?!? Poland be like: Hold my beer! 😅

@soggyfranko4631 4 месяца назад

the roundabout shown at 0:45 is in Sandpoint ID. Been through it several times its pretty nice.

@lakerskid2013 4 месяца назад

The turbo roundabout looks like a pinwheel shape in the middle, very different design for sure. I live in Indianapolis and I have visited the north side suburbs of Carmel and Noblesville before, which both places they have a lot of regular roundabouts, so much so that there’s many interchanges off of US 31 and SR 37 that flow traffic that way too.

@Drewhink 4 месяца назад

First roundabout in the 1990s?! Beaver, come visit New Jersey, we’ve had them since 1927!

@RevengeofGothzilla 4 месяца назад

Dallas had one in the 60's, but the locals hated it and it was removed

@jamesleyda365 4 месяца назад

Yep, I was thinking didn't America actually create the very first roundabouts way back. I thought is was back in the eastern part of the country

@doublej1076 4 месяца назад

And Tallmadge Circle in Tallmadge, Ohio, predates cars!

@FatManWalking18 4 месяца назад

DC has had them since 1792

@8mydaydream409 4 месяца назад

All of those circles everyone in these comments are talking about are traffic circles, not roundabouts! Traffic circles are not safe and they operate differently than roundabouts! The first roundabout in the United States was built in 1990 in a Las Vegas, NV neighborhood called Summerlin. All circles before that are rotaries/traffic circles which are not roundabouts!

@andykillsu 4 месяца назад

OMG a bad driver is forced to miss their exit, oh what will we ever do! If one of your reasons not to build it is because the bad drivers will be forced to miss their exit, then you have nothing to complain about.

@whylifeis4 4 месяца назад

Very true lol

@katieandkevinsears7724 4 месяца назад

It's not necessarily bad drivers. Americans are unfamiliar with roundabouts and now there seems to be a newer and more complicated variation coming down the road. But yeah...there are some bad drivers in the mix.

@colormedubious4747 4 месяца назад

You are NOT correct, sir. A bad driver NEVER misses their exit. Source: Every dashcam compilation on RU-vid.

@marpsr 4 месяца назад

It’s not that they will miss their exits, they will cause accidents. Hilliard Ohio had three of them stacked on each other and then a string of accidents. Idiotic.

@billycox475 4 месяца назад

@@colormedubious4747you got that right, those numbskulls will hold up traffic before they actually miss their exit

@xEmeraldCityx 4 месяца назад

These turbo ones look easy from an aerial pov, especially the ones with clearly defined and separated lanes. I'm glad there are ways to even go back the way you came. In my area, we have a segment of busy, busy road with THREE roundabouts in a row. To complicate this, the freeway entrance/exit is at one end so there is a large amount of semi trucks coming and going. To further complicate this... the roundabouts are not large, so long trailers/beds do not even fit without running over curbs and knocking over signs. Lovely, just lovely. Edit to add: there are also some new roundabouts dotting the freeway where small country roads intersect. The original intersections using traffic lights worked, but accidents were still in the hundreds per year, per intersection, and fatalities were not uncommon. So far, so good.

@enigmadrath1780 4 дня назад

Dutch road design encourages thinking and engagement. Instead of wide, straight open roads that technically don't prevent you from speeding in a straight line (until you smash through an intersection because you ignored a red light), traffic infrastructure that demands your constant attention with more "obstacles" (narrower roads; multiple curves; roundabouts; raised pedestrian crossings; etc.) means you're keyed into your handling of your vehicle at all times. Stop lights, traffic signs, and road markings can only do so much: they don't physically prevent you from ignoring them. Adding more dynamics to the actual road itself makes the difference.

@johnfritz1164 4 месяца назад

Cumberland circle Des Plaines, IL. Also known as Suicide Circle. Two lane five spoke traffic circle built in the 1920s which had accidents about every 4-5 days before the 2018-19 redesign.

@longiusaescius2537 4 месяца назад

Huh

@Prof_Jeff 4 месяца назад

Every time a historically bad intersection near me is replaced with a roundabout, the locals come out of the woodwork to complain. They all think a traffic light (roundabouts usually replace 4-way stops, or at least a 2-way stop from secondary roads) is a better solution. Yeah, because nobody ever ran a red light and traffic never backed up with signals!🙄🤦‍♂️🤷‍♂️ Not much better than stop signs. Major points of a roundabout are: to keep traffic moving (albeit slower); to reduce the speed of any collisions; to change the type of collision to a less serious one (roundabouts result in sideswipes, maybe rear-end impact; no t-bone or head-on).

@starventure 4 месяца назад

Eventually roundabouts end up with traffic lights at the crosswalks at the entrances. And that kills the whole point of the roundabout.

@benchoflemons398 4 месяца назад

Roundabouts are great as long as they aren’t huge.

@David-bi6lf 4 месяца назад

I advise you to avoid driving in the UK then. Some are so large they have to be well signed because you can't see they are a roundabout.

@benchoflemons398 4 месяца назад

@@David-bi6lf check the ones in India

@PatricenotPatrick 3 месяца назад

@@David-bi6lfoh please, the UK has traffic lights at their major circles 💀

@David-bi6lf 3 месяца назад

@@PatricenotPatrick they are called roundabouts not circles and very few have traffic lights actually.

@PatricenotPatrick 3 месяца назад

@@David-bi6lf I said roundabout in a different comment, people still fuss. Trivial, but I digress. Maybe I missed all these big *roundabouts* in London, but I sure recall several small ones that still had lights, idk. Guess they’re in other cities.

@JaySmith-pv2mw 4 месяца назад

I live in Jax and did not know the first one was built here very close to where I grew up.

@DrewDienno 4 месяца назад

They installed 5 of these in Warwick Rhode Island near my house, they call them “circulators” 😂, but they work very well and keep people moving. Decongested the local business district and residential areas too

@MichaelPKelly-hg5jo 4 месяца назад

It's funny to hear "people can't even manage standard roundabouts" from people who until now don't have any roundabouts at all from which to judge.

@edwardmiessner6502 4 месяца назад

Bell Circle, Dog Track Circle, Brown Circle, Copeland Circle, Sweetser Circle, Santilli Circle, Sullivan Square, Leverett Circle, Charles Circle, Jamaica Pond Rotary, Arborway Rotary, Braintree Rotary, Fore River Rotary, Hingham Rotary... and that's not even half the number of traffic circles and rotaries in Massachusetts.

@colormedubious4747 4 месяца назад

You jump over them by pressing the Turbo Boost button, silly.

@FLYSLATERYDER 2 месяца назад

There called rotary’s where I’m from in eastern Massachusetts ❤KEEP UP WITH THE GREAT WORK BEAVER

@kosjeyr 4 месяца назад

There's one in Aurora, Illinois that they beautified in an industrial area and truckers hate it.

@Spudeaux 4 месяца назад

Didn't realize we had the first of a new kind of roundabout here in Jax. I driven through it a few times and ended up unable to make the turn I wanted to. Seemed like it made since after I remembered to anticipate it coming up, though.

@MichaelPKelly-hg5jo Месяц назад

I have come to this post to report that tonight I made a 270-degree right turn in the Hollister turbo roundabout and am happy as a result.

@tomtbi 4 месяца назад

Roundabouts .. My Mom's favorite thing to drive through... Lol😅!!

@kacowboy 4 месяца назад

There is a Turbo Roundabout just off exit 301 on I-70 . It is actually on Fort Riley Kansas and has been in place for about a year.

@DrHenry1987 4 месяца назад

Twin trailer semi? Will it fit or will they just destroy the bricks or curbs? I was also think fire ladder trucks will be interesting? I do like these better than the two lane regular roundabouts.

@EllieODaire 4 месяца назад

All of the curb dividers and the center aprons are designed to allow the larger tires on heavy duty vehicles to easily run them over. The brickwork is, in my experience, usually concrete made to look like brick that can easily handle the weight. Standard trucks can simply navigate the cab through the lanes like a car and the trailer(s) will offtrack over low spots on the curbs designed to accommodate this, while oversize trucks can drive over the curbs and aprons as needed to pull even extremely long loads like wind turbine blades through the roundabout.

@davidkacprzyk1989 4 месяца назад

Love when my old GPS said the word roundabout.

@ericmasterson4183 4 месяца назад

Turbo roundabouts are not friendly to American semi trucks. Roundabouts in general aren't because they are either made too small with off tracking not accounted for, or they are made with too much space enabling cars to try squeezing past trucks in the roundabout.

@chow-chihuang4903 3 месяца назад

Those internal physical barriers are key because the multi-lane ones being installed here must use painted markings and I’ve had too many close calls. One time, a driver of a large pickup overtook me from the inner lane and cut me off to exit the roundabout.

@keithswindell6212 4 месяца назад

The engineers got together and said to each other: "How can we make the rotary worse?" "Hold my beer..." says one, and here we are. Ugh!

@markdebruyn1212 4 месяца назад

Then check out the Magic Roundabout in Swindon, UK

@ghostwriter1016 4 месяца назад

I remember driving on a roundabout in Ft Worth TX In 1988 when I was stationed there at Carswell AFN (now closed). I do not know when it was originally built or if it is still there.

@MikeV8652 4 месяца назад

Just as the roundabout was gaining acceptance in America (a good thing), along comes some traffic engineers with European stars in their eyes and mess it up with this monstrosity, which gives justification to every objection that the enemies of roundabouts have ever imagined!

@kmbbmj5857 4 месяца назад

How do you solve the problem of crossing traffic? There are multiple points where the traffic flow cross. The places I've seen roundabouts work well are relatively low flow with lots of room. But once they become full, the crossing points become nightmares.

@Irishfan 4 месяца назад

Toledo, Ohio, had a roundabout at Detroit Ave and Cherry Street that had pavement markings and signage designef wrong and caused accidents. The redesigned and reconstructed the roundabout, and it appears to me it is now a dirivitive of a turbo roundabout. Now if they can do something about the next roundabout to the south that replaced a Tee intersection. It is set up as it should to giving both lanes a left turn while the right lane can go, left or right. The problem with it is most drivers are making a right turn from the left lane. When the driver in the right lane want to enter and go around the roundabout eventually making a left turn that is his legal right, another another driver in the left lane turns into him.

@johncrandall5782 4 месяца назад

These look like the roundabouts on the 202 Red Mountain in Phoenix’s East Valley

@Bobrogers99 4 месяца назад

We've actually had "traffic circles" for eons, but they were basic, with just one lane around them. These turbo roundabouts require more planning and alertness than I see in many US drivers. Before you enter one, you must make an irrevocable decision to be in the correct lane, and then you have to yield appropriately as well as watching out for drivers who don't. If they become common nationwide, I suppose we'll adapt, and Darwin will weed out those that don't. In the UK, where roundabouts are everywhere, they often rely on half-worn markings on the pavement rather than overhead signs, and they cope. But their licensing requirements are far more stringent than some US states.

@aisle9 4 месяца назад

Funny, as you were talking about the design, I was thinking, "that sure sounds a lot like that intersection right by my old chiropractor's office." My old chiro's office is right behind the (now closed) CVS shown at 4:34. I remember that intersection well, because it was a pain to navigate.I was coming westbound off of Merrill Rd., and it was just confusing as all hell to have a lane just appear to my left with drivers in it who would swing out and block me from turning onto University Blvd. S. Once I got the hang of it, it still sucked because no one else had the hang of it. But isn't that just the state of roundabouts in America in 2024?

@SansevieriaMedia 4 месяца назад

Engineers, hear me out. Diverging lane intersections with peanut shape roundabouts.

@only1gameguru 4 месяца назад

I live by the roundabout at 00:38... It's not that bad

@HollywoodF1 4 месяца назад

There’s another one in California- the largest in California. It was redesigned a few years ago to include turbo features. Take a look at the aerial photo. 33.78988° N, 118.14249° W

@jamesmusser6160 4 месяца назад

Horse pucky....first round abouts I remember encountering were in MA in early 60's. NJ in the 70's.

@williambliss6087 4 месяца назад

Roundabouts, AKA rotaries, were invented by an American traffic buff before the first world war. Bahrain recently got rid of its roundabouts and replaced them with traffic lights. The roundabouts were being overwhelmed with traffic. One more car in Bahrain will probably bring on total gridlock. I'm not sure how things are working out there these days.

@JStorm13 4 месяца назад

Wouldn't work well in winter states as plows would take out that divider

@stevecovey1758 4 месяца назад

How about a video on the Diverging Diamond

@am74343 4 месяца назад

They really should paint arrows on the lanes to help people choose the correct lane beforehand.

@Thesteamengineer 4 месяца назад

We have a partial one they built in my town. No concrete divider as we get snow, but It also has proved more dangerous as people just split the lanes. Roundabouts should be fast and speed up traffic, not slower.

@6681096 3 месяца назад

Turbo roundabouts have been proven for over 20 years to reduce accidents by over 50% compared to regular roundabouts which are of course safer than regular intersections.

@smokey5995.1 4 месяца назад

Do you think that this might be more commonplace in the future? I don't mind the idea. Just hope it explaining in a way that makes sense.

@valkasolidor6727 4 месяца назад

Unfortunately I live in an area that proves the "some drivers don't understand it" factor. We can't even count on drivers understanding the 3 or 4 way stop intersections at the Walmart entry.

@cjthompson420 3 месяца назад

Those aren’t legal stops anyway.

@markcoe8960 4 месяца назад

Just come to Carmel, Indiana, for roundabouts in the US.

@scpatl4now 4 месяца назад

Actually...DuPont Circle in Washington DC would be the first example of a "turbo" type roundabout, and it dates back to 1920, so there were roundabouts in the US well before 1990

@scpatl4now 4 месяца назад

There are actually 23 roundabouts in DC that all predate 1990

@MrChilili 4 месяца назад

There are also residential roundabouts, I’ve seen several neighborhoods that have basically cul-de-sac sized roundabouts with a grass area in the middle at interchanges, and they’re from the 40’s-80’s

@michaelmiller9458 4 месяца назад

There is one (Heron Circle) in Spartanburg, SC that was built in the late 1950s.

@aaronmccracken7351 4 месяца назад

I'd contend that DuPont Circle is a traffic circle, which is not the same as a modern roundabout (which are generally smaller and aren't signalized). I'm not a traffic engineer though, so I could have the definitions mistaken.

@8mydaydream409 4 месяца назад

DuPont Circle is a traffic circle, not a roundabout.

@starventure 4 месяца назад

The problem with any roundabout in the US is the pedestrian crossings. They must be at a separate grade from the road in order for the roundabout to function unimpeded. Tunnel or bridge, doesn't matter, and it absolutely MUST be ramped. So it has by nature a large footprint. If these are not done, a on demand stop light at the crossing is going to happen, because all it takes is one accident and a judge is going to order the municipality to comply with ADA laws.

@-Katastrophe 3 месяца назад

6:00 or just build a standard interchange so people don't get confused, simple!

@LFTRnow 4 месяца назад

Having seen more than enough cars fly across 5 lanes of traffic, slamming on their brakes from 80 mph and running over the gore line at the exit at the last moment, I'm sure this will be fine.

@tyfrank3427 4 месяца назад

Actually, In Edmonton, Alberta, There are roundabouts built in the 1950s. So they existed in the North American continent for a while. Some of those are still there. The one roundabout actually has traffic lights on it, and it actually works quite well. Now there are many, but I don't know of any turbo roundabouts.

@David-hm4vh 4 месяца назад

100%. Been in nj for 50 years or more.

@Mushkthx 4 месяца назад

That roundabout on St Albert Trail and 118 ave was designed to create as much congestion as possible. The fact there are lights on the exits make it prone to horrible gridlock come afternoon rush hour.

@8mydaydream409 4 месяца назад

The "roundabouts" that existed in the 1950s, the ones in New Jersey before 1990, and the ones that have traffic lights are traffic circles, not roundabouts! Traffic circles are not safe and operate differently than roundabouts which are safe!

@dusanmal 2 месяца назад

All roundabouts, including "turbo" are there to obstruct ALL the traffic and slow it down, reducing the throughput along it. They emerged from European traffic obstructionists whose theory is that if you make traffic throughput low, people will try to drive less. Trivial competing solution that minimizes obstruction, eliminating it completely for all those who continue in same direction through the intersection is overpass/underpass/clover leaf intersection. Zero slowdown and zero interaction with the traffic in other direction. hence, minimal accident likelihood too. Fast, safe, efficient. If one wants traffic to move ....

@YetAnotherGeorgeth 4 месяца назад

I'm fairly sure roundabouts have been around in the UK waaaaaaaay longer than the 50s! In fact it was built in 1909 in Letchworth Garden City.

@David-bi6lf 4 месяца назад

Right on, but you are forgetting that this is an American made video and most Americans don't even know life exists outside America 😉

@krashd 4 месяца назад

Traffic circles have been around in the UK for centuries, bur roundabouts and how to use them have only been here since the 1950's

@chrisk5651 4 месяца назад

It was confusing. You said that the 1st roundabout in the USA was in 1990. You didn’t say the first modern roundabout. You did say the first modern roundabout in England in the 1950s. There have been roundabouts in the USA before 1990.

@BeaverGeography 4 месяца назад

mb big bro

@ralphjames1211 4 месяца назад

Before 1990 yes there are roundabouts in Washington, D.C. and 1 I remembered in the 1980s in Fayetteville, N.C. (the one with the tower that sadly got vandalised by BLM protesters in 2020)!

@nathangregg1765 4 месяца назад

We have a "turbo" roundabout near us in Fife, WA. It is the opposite of turbo. If anything it makes traffic worse. People in far right dont know it is an exit only and always have to merge over. Trucks also cannot make the turn so all traffic has ro yield to dual axle vehicles. Doesnt help they are the majority of the traffic.

@dividebyzero1000 2 месяца назад

Some people are stupid and cannot even handle regular roundabouts/rotaries/traffic circles. On several different occasions, I have seen people backing up on the circle near my home because they missed their turn. You can't fix stupid. You can engineer roads to make stupid people have less serious accidents. It looks like these eliminate head-on collisions, and potentially reduce T-Bone and left-turn accidents. If throughput matches what a light controlled intersection can do, sounds like a win.

@richardcleary9107 4 месяца назад

In the 60s my parents complained about the Kingston, NY roundabout. Today I complain about the NC explosion of roundabouts.

@am74343 4 месяца назад

LOL! I'm originally from Kingston! The original "Traffic Circle" design that used to be there (pre-2002) was much larger and the IN and OUT lanes were not nearly as well-designed as the smaller roundabouts of today. The "newer" roundabout there (build around 2002) is still not quite a "modern" roundabout design either... It was a hybrid of old- and new- design. The most unnerving thing about that one is that humongous MOUNTAIN in the middle of it so you can't see vehicles coming around the bend until they are RACING towards you when you're trying to accelerate into the circle.

@matthewhuszarik4173 2 месяца назад

Who ever though having car(s) cross lane(s) of on coming traffic was safer obviously isn’t very familiar how the worst accidents happen.

@SBKWaffles 4 месяца назад

My neighborhood in California has had a 3 way roundabout since 2020, and many cities in California have had "soft" turbo-roundabouts, without hard corners or dividers but designed around the same traffic pattern, for many years. So unfortunately, your history is quite bit off. Also, an explanation of why turbo-roundabouts are better beyond " they are safer and traffic flows better" would be nice.

@juice-opinion 4 месяца назад

lots of missed opportunities: why different countries went for different variants, labeling the flows+conflicts in the dutch and californian variants, breaking down the $15m budget (at least acknowledging only $11m went into construction)... so many points in the script that are like "oh great we're about to get specific" and then you change the subject...also no mention of capacity til toward the end, no mention at all of cost as a factor in replacing signals, and implying the origins were all about safety, so not just light on details but actually misleading in some places this doesn't even look that safe, it's got blind right merges with the outside roundabout lane. people turning right will think it's a slip, and people in the roundabout will think they have the lane to themself

@xouxoful 2 месяца назад

3:53 « In places where roundabouts were becoming a problem ». Which places ? I think you got this one wrong : turbo roundabouts were not envision for the few place with roundabouts in the US but for places with classic intersections too busy for single lane roundabouts.

@MrTruehoustonian 4 месяца назад

Turbo roundabouts sound scary AF theres a regular roundabout in Houston off of Washington and people seemed to be confused on how it works so if you add the word turbo to it I just picture dumbasses being just as confused, but at faster rate, and speed.

@scottmbatson 4 месяца назад

Turbo means pinwheel, or fan. It's a lost in translation thing from the original Dutch.

@jacktoy3032 4 месяца назад

I wish more roundabouts had bypasses. Secondly, roundabouts don't seem to work that well when there is a heavy steady flow of traffic from only one direction, e.g., at rushhour.

@traffic.engineer 28 дней назад

Only for rural roundabouts. Bypass lanes are not good for pedestrians.

@jacktoy3032 26 дней назад

@@traffic.engineer Agree. Even pedestrian islands at street intersections can be hazardous to pedestrians. Ped crossing signals could help a bit.

@commentor3485 4 месяца назад

Snow plow drivers: great some other thing for me to plow round

@fryphillipj560 4 месяца назад

What is this? Surprised Pikachu face if you have to do your job? Heaven forbid.

@commentor3485 4 месяца назад

@@fryphillipj560 can still complain about your job, especially when it gets made harder by office workers who don't know how it will impact the worker

@yeahnoway111 4 месяца назад

Turbos are great. The regular 2 lane roundabout is stupid.

@crazfulla 4 месяца назад

Round abouts are safer than anything, it's drivers being selfish and breaking the road laws.

@saxpride100 4 месяца назад

Doesn't this completely undermine the intent of roundabouts? Roundabouts are supposed to eliminate perpendicular intersections, but I see perpendicular intersections with these new multifaceted ones.

@Lunaviia 4 месяца назад

Perpendicular intersections are the exact thing you want. They are very visable altough perpendicular crashes can be dangerous but the sharp turn to enter the roundabout forces slow speed.

@suekayton 2 месяца назад

When I lived in Boston in the 1970s there were several roundabouts that had been there for generations. So your claim that the first one in the USA was in the 1990s is clearly inaccurate.

@traffic.engineer 28 дней назад

That is a traffic circles, not roundabout.

@anti-emo4721 4 месяца назад

This looks horrific! It should be either one line circle or traffic lights.

@dynamicremakes5592 4 месяца назад

If you live in a densely populated area traffic lights will do nothing but cause congestion and bottlenecks so roundabouts are a better alternative

@anti-emo4721 4 месяца назад

@@dynamicremakes5592 Normal roundabouts are great, but not these monstrosities!

@szymex22 4 месяца назад

I think you would get a panic attack if you drove through my city. Tons of roundabouts like this even some 5 lane roundabouts with traffic lights and tramway in the middle. Roundabout is much safer and more efficient… provided people learn to drive on it

@anti-emo4721 4 месяца назад

@@szymex22 😲That's insane! Where is it? And who even wants to live there? Also, you can drive as good as you want, but there's always some crazy person who can slam into you.

@szymex22 4 месяца назад

@@anti-emo4721 city of Poznań in Poland. Usually the only crashes on these roundabouts are when idiots dont know how to follow the painted line, and since the roundabout reduces the speed of the cars, they only really ever get scratched in case of an accident. In Europe roundabout is normal, it is taught how to drive on it in Driver's ed.

@Tackleberry117 4 месяца назад

Nobody consulted any truck drivers when coming up with this

@neuralwarp 4 месяца назад

Please understand the difference between England and UK.

@chuckfugate4518 4 месяца назад

Be more thorough in your research. When was the first roundabout built? It all began around 1905... Traffic circles have been part of the transportation system in the United States since 1905, when the Columbus Circle designed by William Phelps Eno opened in New York City. After that, many large circles or rotaries were built in Canada and the United States.

@BeaverGeography 4 месяца назад

First modern roundabout girl it's not a lack of research I just said it wrong

@krashd 4 месяца назад

Roundabouts and traffic circles are not the same thing, roundabouts have rules of use while traffic circles are a high-speed free for all.

@ralphjames1211 4 месяца назад

Actually the first roundabouts in America are in Washington, DC!!!

@fredwhitmore3737 20 дней назад

How do the blind pedestrians navigate the horrid things?

@metalslinger 4 месяца назад

There's a roundabout in Whiteville, NC that was built back in the late 1910s. I know this because the courthouse is in the middle of it.🙂

@8mydaydream409 4 месяца назад

A traffic circle, not a roundabout.

@metalslinger 4 месяца назад

@@8mydaydream409 There's a difference?

@TheCriminalViolin 4 месяца назад

Loss Vagus 🤣

@ralphjames1211 4 месяца назад

Looses in the first roundabout in America claim!

@theawesomer8587 4 месяца назад

Are you sure the first roundabout was built in 1990? There were plenty in New Jersey in the 70s.

@dericn 4 месяца назад

We always called them traffic circles in NJ, so maybe he means the first circle that was called a 'roundabout' was in 1990? 🤷‍♂

@8mydaydream409 4 месяца назад

The first modern roundabout in the US was built in 1990. Those New Jersey circles built before 1990 are traffic circles, which operate differently than roundabouts.

@theawesomer8587 4 месяца назад

@8mydaydream409 most of them operated the same way and still do today. You yield to the cars that are already in the circle, unless there's a traffic light or something.

@user-wg6fw4ou1b 2 месяца назад

Follow the money, just a money pot for contractors.

@Forseti2 Месяц назад

Why are you in USA always complicate things? 😅 Just make classic roundabout with inner and outer ring, no other lines or complications. Btw, can you make U-turn on turbo roundabout?

@traffic.engineer 25 дней назад

Because we are reducing crashes. Traffic circles with just inner/outer rings increase crashes because there is no positive lane control when exiting. America had a bunch in the early 1900s and got rid of them because of such lousy performance. This is evident today with the plethora of UK and European dashcam videos showong constant collisions at the diverging points.

@Forseti2 24 дня назад

@@traffic.engineer well, I live in Europe (Czechia) and we have lot of roundabouts and it's well established that when you are going to exit it on first exit, you should take outermost ring - because you'll be on roundabout the shortest time, so you don't want to switch lanes and become obstacle for other drivers. And if you'll stay on roundabout longer (2nd / 3rd / 4th exit) you'll take inner ring - basically for the same reason - you don't want other drivers to cross your way. So basically all arrows in front of roundabout are nonsense (well those pointing on destination, depending on exit taken, are good 😊)

@jamespyle777 2 месяца назад

why turbo? what's so turbo about it? the darn thing looks like it was made to look like interlocking buttonhooks.

@Anzomax2 4 месяца назад

Beaver I stay right down the street from the Turbo at Merrill and University. That shit can be confusing

@tudorjason 4 месяца назад

6:09 - Ah, likely true. So we'll be seeing crashes and other incidents start showing up on dash cam crash compilation vids.

@danielszekeres8003 4 месяца назад

If you get confused by a roundabout, maybe you shouldn't be driving

@Icestorm_-pt8fs 4 месяца назад

Some of those designs look like nightmares to drive

@alessandromoretti9495 4 месяца назад

Womp womp skill issue if you can't really drive them

@robertwazniak9495 4 месяца назад

My concern is from the highway safety engineering aspect. Roundabouts exist to reduce the severity of incidents. A sideswipe has a much lower chance of resulting in a serious injury or fatality than a 90 degree crash. This Turbo Roundabout introduces points of conflict that are T-bone situations... a much more severe incident... the very situation that the Roundabout was designed to avoid. If the traffic volumes on the roadways dictate three lanes, it also precludes the availability of access in a roundabout. There are much more viable options for intersections out there for those traffic volumes... especially considering the costs that California incurred for this location.

@scottmbatson 4 месяца назад

The circulating speed of 20 mph, which the turbo design reinforces, keeps the likelihood of a T-bone crash very low.

@robertwazniak9495 4 месяца назад

@@scottmbatson don’t drive much, do you? It could be a four-way stop with both cars stopped and they would kill each other with their fuck-you-me-first behaviors. Unfortunately.

@scottmbatson 4 месяца назад

@@robertwazniak9495 Been driving for over 45 years, not that it's relevant. Roundabout geometry is what causes lower speed and a turbo roundabout only reinforces lane discipline.

@MrChilili 4 месяца назад

I think roundabouts are great and drivers are just dumb.