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Old 10-14-2015, 05:47 PM   #61
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Modern roundabouts are the safest form of intersection in the world (much more so than comparable signals). Visit http://tinyurl.com/iihsRAB for modern roundabout FAQs and safety facts. Modern roundabouts, and the pedestrian refuge islands approaching them, are two of nine proven safety measures identified by the FHWA,http://tinyurl.com/7qvsaem
The FHWA has a video about modern roundabouts on Youtube, or check out the IIHS video (iihs dot org).

http://priceonomics.com/the-case-for...c-roundabouts/
Have read all your posts. They are only safe if people know what to do in them. It has not been my experience and have used them a lot. YMMV
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Old 10-14-2015, 05:56 PM   #62
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Have read all your posts. They are only safe if people know what to do in them. It has not been my experience and have used them a lot. YMMV
Have you been in a crash before? Have you been in a crash in modern roundabout?
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Old 10-14-2015, 06:01 PM   #63
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Have you been in a crash before? Have you been in a crash in modern roundabout?
I've sure seen plenty of crashes in roundabouts (though they might not meet your personal definition of "a modern roundabout", but then I am not a "modern person" and have seen crashes regularly on them for some time). They aren't pretty.


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Modern Roundabout Safety
Old 10-14-2015, 06:15 PM   #64
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Modern Roundabout Safety

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I've sure seen plenty of crashes in roundabouts (though they might not meet your personal definition of "a modern roundabout", but then I am not a "modern person" and have seen crashes regularly on them for some time). They aren't pretty.
Thank you for responding in the "Hi, I am" section.
Modern roundabouts are a very specific subset of the world of circular intersections. They are low speed, usually not operating over 20 mph. You have to slow down to enter the circular roadway (deflection). All entering traffic has to yield to all traffic in every lane of the circular roadway.
Here’s a quote:
Captain Jeremy Geiger with the Minnesota State Patrol says, "We will respond to property damage crashes all day, as long as we don't have to see the serious injury and fatal crashes. That's the goal of the roundabouts."
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Old 10-14-2015, 06:20 PM   #65
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Have you been in a crash before? Have you been in a crash in modern roundabout?
I haven't been in one yet since i'm a very good defensive driver but i've been close many times. There were 5-6 accidents in one of the "modern roundabouts" when it was first put in a couple years ago. Too many people don't yield. They go right thru at 30+ mph.
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Old 10-14-2015, 06:30 PM   #66
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OK, I don't like this as a premise for buying GT stock, but if OP is really adamant, maybe a tire retailer.

As for roundabouts, they have taken over here in the MD suburbs of DC and I hate, hate, hate them. Keep in mind traffic circles are very common in DC proper where I grew up and learned to drive. Folks from out of town always cursed them and frequently complained that they couldn't figure out how to get out of the circle once they got in.

These new "roundabouts" which is a term I only know from the New England area are terrible for a number of reasons. They are typically too small and there is insufficient visibility between vehicles already in the circle and vehicles that are just entering. That means you may have to stop before entering the circle because you can't tell what the other driver will do. They put these things willy nilly where they don't belong. We have one that was put at the end of an exit ramp of a divided highway. It was causing a backup onto the highway so they added a traffic signal!


In many instances they have dual roundabouts on either side of of a major intersection. There was one by the airport that was completely re-vamped within one year to eliminate both roundabouts (talk about waste). You can see from this thread people have different ideas of how to negotiate these things, especially if it is a new layout. The lack of signage can add to the confusion.


My theory is that this is a conspiracy by the construction contractors (my former customers) to scale up their contracts.

We have many single point interchanges as well. They do work well once you figure them out....better signage would help there as well.
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Old 10-14-2015, 06:53 PM   #67
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Ok, I have no pride. Our city put 3 roundabouts in last year when previously there had been zero, that I noticed anyway. I think I know how they are supposed to work, but in a moment of inattention 3 months ago, I entered a roundabout and went right over the center median circle. When I put my car in for routine service, they had to do a realignment. No doubt due to going over a curb. Now I feel a bit of high anxiety entering a roundabout.
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Old 10-14-2015, 06:59 PM   #68
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I grew up in a small town, 15,000 people with a major roundabout, which intersected four major highways, so eight entries. It is so large that there is a church and the police station in the center. Cars could be 3 wide at times, but 2 was normal. The only issues are when people hesitate entering the roundabout, and then the person behind rear ends them. Also, the occasional white hair driving the wrong way. Either way I love them. Our driving training included teaching us how to enter, travel, and exit them.
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Old 10-14-2015, 07:28 PM   #69
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I grew up in a small town, 15,000 people with a major roundabout, which intersected four major highways, so eight entries. It is so large that there is a church and the police station in the center. Cars could be 3 wide at times, but 2 was normal. The only issues are when people hesitate entering the roundabout, and then the person behind rear ends them. Also, the occasional white hair driving the wrong way. Either way I love them. Our driving training included teaching us how to enter, travel, and exit them.
Being hesitant is much better than not yielding. The person who rear ends the other person should have their license suspended.
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Old 10-14-2015, 07:40 PM   #70
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Being hesitant is much better than not yielding. The person who rear ends the other person should have their license suspended.
I agree, but the collision is at 10 or 15 mph - a minor fender bender, and not worthy of a license suspension. The nice thing about roundabouts is that they tend to mitigate the 45 mph tee bone collisions which can cause serious injury or death.
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Old 10-14-2015, 07:53 PM   #71
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We had a roundabout put in at a nearby intersection where a fairly busy local road meets a busy state highway. It replaced a basic stop sign.

Prior to the roundabout, the spot would average about one fatality a year. Once a guy pulled into the path of a bus carrying residents of an assisted living facility. The crash killed eight people.

There have been no deaths since the roundabout went in.
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Old 10-14-2015, 08:03 PM   #72
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We had a roundabout put in at a nearby intersection where a fairly busy local road meets a busy state highway. It replaced a basic stop sign.

Prior to the roundabout, the spot would average about one fatality a year. Once a guy pulled into the path of a bus carrying residents of an assisted living facility. The crash killed eight people.

There have been no deaths since the roundabout went in.
+1, as a minimum, they slow down the traffic
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Old 10-14-2015, 08:15 PM   #73
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People IN the roundabout have the right of way. Coming into the roundabout must yield.
As with many other things, this is not universal. I drive into Hartford every weekday around Pulaski Circle. All the entrances must yield to traffic in the circle, except the people coming in on the Whitehead Highway (Exit 29A off of I-91), who have the right of way on entering. People in the circle regularly blow by the yield sign at that point and it is very dangerous.

I'm also very familiar with the traffic circle in Flemington NJ, where Rte. 31, Rte 12 and Rte 202 come together. The people entering the circle on Rte 202 always have the right of way over the people in the circle. The people entering on 12 and 31, however, must yield to traffic in the circle.
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Old 10-14-2015, 10:51 PM   #74
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I know Wisconsin is peppered with them now. My sister-in-law works at the 911 center and is a huge fan as there are minor accidents at intersections now but not the T-bone type that causes death or disability... so she claims they are MUCH safer.

Now of course nothing is safe if people don't understand how to use them...and I know that causes issues. I can hope that people will get use to them and it will settle down.

Just be glad you don't have J-hooks. I call them like death traps, they are forcing you to make a U turn on the highway..with no graceful entry lane, your just "on" the highway. See how tiny the turn area is in the lower left hand corner.. btw, its a 65mph highway.
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Old 10-15-2015, 06:25 AM   #75
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In MD we call the roundabout "circles" ["traffic calmers" are those horrid bumps that you have to walk your car over, and that I want to attack with a jackhammer] and they get mixed reviews. Small, single-lane circles cause few problems and are more popular than intersections with lights.

As lanes and exit choices are added, however, it gets harder for drivers to know when to enter, and which lane to enter. It can be scary for a timid driver who wants a completely clear entrance, and is getting honked-at by impatient drivers behind him.

At least with a light, you always know what to do, even if some people don't always obey.
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Old 10-15-2015, 08:40 AM   #76
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In MD we call the roundabout "circles" ["traffic calmers" are those horrid bumps that you have to walk your car over, and that I want to attack with a jackhammer] and they get mixed reviews. Small, single-lane circles cause few problems and are more popular than intersections with lights.

.
I have seen some itty bitty circles here that are labeled traffic calmers too. They are generally only one lane. I think people generally prefer them to the horrid humps which tend to wear out rather quickly due to drivers that refuse to "walk" their cars over.
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Old 10-15-2015, 09:54 AM   #77
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I know Wisconsin is peppered with them now. My sister-in-law works at the 911 center and is a huge fan as there are minor accidents at intersections now but not the T-bone type that causes death or disability... so she claims they are MUCH safer.

Now of course nothing is safe if people don't understand how to use them...and I know that causes issues. I can hope that people will get use to them and it will settle down.

Just be glad you don't have J-hooks. I call them like death traps, they are forcing you to make a U turn on the highway..with no graceful entry lane, your just "on" the highway. See how tiny the turn area is in the lower left hand corner.. btw, its a 65mph highway.
Oh yeah, I recognize that one - first encountered it Sep 2014, and DW and myself both had a "What were they thinking?" moment. In a Greenville roundabout, about 25 miles to the southwest of that intersection my F150 met its demise March of 2015. Multilane & multiple approach design, ended up getting T-boned by a vehicle perhaps exceeding the posted limit (undeniably ignoring the posted 15 mph advisory) for the approach lane. Being a bit more attentive to the issues of roundabouts after that, there are a few oddities, at least for Wisconsin that I have noted. Legal right of way is granted to first vehicle entering, however speeding upon entry to an intersection denies one of any claim to right of way. As for accident reduction, a 2011 UW-Madison Department of Civil and Environmental Engineering study based on crash data from 24 intersections converted to roundabout design, and submitted to the WI DOT concludes a reduction in fatal/injury crashes of around 50%. However, total crashes did increase by about 15%, with a corresponding significant increase in property damage only crashes. So, there is data to support the perception of increased risk of a crash, but with reduced risk of bodily harm. I do suspect some of the injury reduction might be attributed to vehicle safety improvements over time, which may skew the "before-after" data to show an improvement not entirely due to the roundabouts themselves. At around $1.5 million a pop for roundabouts, that money could maintain miles of existing roadway - and now roadway maintenance and repair projects are being pushed off due to funding shortages. For that reason, and having been involved in a roundabout crash, I'm in the 'don't like them much' camp.
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Old 10-15-2015, 10:58 AM   #78
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Portland, Oregon, has only three modern roundabouts. One at Lewis and Clark College (Terwilliger/Palater), one at Airport long term parking, and one at the end of Yacht Harbor Drive. Everything else is a neighborhood traffic circle. Portland hasn't built any new neighborhood traffic circles in over ten years.
Many people confuse other and older styles of circular intersections with modern roundabouts. East coast rotaries, large multi-lane traffic circles (Arc D’Triomphe, Dupont Circle), and small neighborhood traffic circles are not modern roundabouts. If you want to see the difference between a traffic circle, a rotary (UK roundabout) and a modern roundabout (UK continental roundabout), go to http://tinyurl.com/kstate-RAB to see pictures. And here’s another site that shows the difference between an older rotary and a modern roundabout: http://tinyurl.com/bzf7qmg
I agree that they are best described as neighborhood traffic circles. The lack of new neighborhood traffic circles may be the result of priorities of the powers that be in City hall. [grump, grump] The only real two lane roundabout in Portland, to my knowledge, would be at NE 39th & Glisan - which could hardly be described as modern.
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Old 10-15-2015, 12:09 PM   #79
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It is so large that there is a church and the police station in the center.
That's not large, that's colossal
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Old 10-15-2015, 12:32 PM   #80
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Thanks to all of you that have replied.
I never thought this would go 4 + pages.

My original post stating that Goodyear tires would be a good investment because of roundabouts, was somewhat tongue-in-cheek.

My main goal was to express my disdain for roundabouts.
I totally understand the safety aspect. If there's an intersection where there's 10 deaths per year, yeah, I can see the need for a roundabout.

But in the case of the busiest one in Mankato Minnesota, I think I mentioned earlier there was one death in the previous 25 or 30 years. Well we'd all love to live in a utopian world where everybody has everything and nobody gets killed, but it's not realistic. One death in 25 or 30 years is not much.

I also stated that all the whining in the world by me is not gonna change a thing. The roundabouts are here, there's more coming & myself and fellow haters just have to except that.

“Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius — and a lot of courage to move in the opposite direction.”

― Ernst F. Schumacher
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