Traffic circles (roundabouts) in your area

[NJ]

Franklin Lakes, NJ (Bergen County)

https://www.google.com/maps/@40.9933916,-74.2127847,3a,78.4y,101.15h,88.26t/data=!3m6!1e1!3m4!1sWv5k9FT4gXrZWTVZwvLVJQ!2e0!7i13312!8i6656

This one caught my eye...I happened to scroll around and saw a stop sign.  I soon realized that last year, this had a small circle in the middle with stop signs on approach at all angles.  They reconstructed it with a larger center circle, and made it into a true roundabout.  Nice.

I hate the stop signs on the other side; a perfect example of having to be replaced with yield sign.

[jeffandnicole]

Franklin Lakes, NJ (Bergen County)

https://www.google.com/maps/@40.9933916,-74.2127847,3a,78.4y,101.15h,88.26t/data=!3m6!1e1!3m4!1sWv5k9FT4gXrZWTVZwvLVJQ!2e0!7i13312!8i6656

This one caught my eye...I happened to scroll around and saw a stop sign.  I soon realized that last year, this had a small circle in the middle with stop signs on approach at all angles.  They reconstructed it with a larger center circle, and made it into a true roundabout.  Nice.

I hate the stop signs on the other side; a perfect example of having to be replaced with yield sign.

It looked like the former design had stop signs on all 4 legs entering the circle.  Wonder how long it was like that.

[jakeroot]

There are over 60 roundabouts in the Green Bay area with new ones being constructed each year.

I heavily admire WisDOT's consistency with roundabout design. Every roundabout in the state seems to have exactly the same set of markings.

[tradephoric]

I heavily admire WisDOT's consistency with roundabout design. Every roundabout in the state seems to have exactly the same set of markings.

Even though they may be consistent, Wisconsin roundabouts have seen a 12% increase in total crashes and a 38% reduction in injury crashes.  This is a lot worse than the national numbers that show a 40% reduction in total crashes and an 80% reduction in injury crashes.  Andrea Bill touches on these statistics in her TRB presentation:

http://teachamerica.com/RAB14/RAB1403CBill/index.htm

[jakeroot]

I heavily admire WisDOT's consistency with roundabout design. Every roundabout in the state seems to have exactly the same set of markings.

Even though they may be consistent, Wisconsin roundabouts have seen a 12% increase in total crashes and a 38% reduction in injury crashes.  This is a lot worse than the national numbers that show a 40% reduction in total crashes and an 80% reduction in injury crashes.  Andrea Bill touches on these statistics in her TRB presentation:

http://teachamerica.com/RAB14/RAB1403CBill/index.htm

So crashes went up a little, but injury crashes dropped by a third? I'd still call that a success.

[AlexandriaVA]

I heavily admire WisDOT's consistency with roundabout design. Every roundabout in the state seems to have exactly the same set of markings.

Even though they may be consistent, Wisconsin roundabouts have seen a 12% increase in total crashes and a 38% reduction in injury crashes.  This is a lot worse than the national numbers that show a 40% reduction in total crashes and an 80% reduction in injury crashes.  Andrea Bill touches on these statistics in her TRB presentation:

http://teachamerica.com/RAB14/RAB1403CBill/index.htm

So crashes went up a little, but injury crashes dropped by a third? I'd still call that a success.

Yeah those numbers basically suggest that there were more fender-benders and less serious crashes. I can live with that. 

[jeffandnicole]

I heavily admire WisDOT's consistency with roundabout design. Every roundabout in the state seems to have exactly the same set of markings.

Even though they may be consistent, Wisconsin roundabouts have seen a 12% increase in total crashes and a 38% reduction in injury crashes.  This is a lot worse than the national numbers that show a 40% reduction in total crashes and an 80% reduction in injury crashes.  Andrea Bill touches on these statistics in her TRB presentation:

http://teachamerica.com/RAB14/RAB1403CBill/index.htm

Wow.

Kid: "Hey, look, it's Santa Claus!"

Tradep: "Did you know that around Christmas, there's a 17.2% increase of traffic accidents at multi-lane roundabouts"?

[tradephoric]

I heavily admire WisDOT's consistency with roundabout design. Every roundabout in the state seems to have exactly the same set of markings.

Even though they may be consistent, Wisconsin roundabouts have seen a 12% increase in total crashes and a 38% reduction in injury crashes.  This is a lot worse than the national numbers that show a 40% reduction in total crashes and an 80% reduction in injury crashes.  Andrea Bill touches on these statistics in her TRB presentation:

http://teachamerica.com/RAB14/RAB1403CBill/index.htm

So crashes went up a little, but injury crashes dropped by a third? I'd still call that a success.

Yeah those numbers basically suggest that there were more fender-benders and less serious crashes. I can live with that. 

OK, but keep in mind the majority of the roundabouts studied in the Wisconsin study are simple multi-lane (1x2) roundabouts.  The roundabouts with the worst performance are the 2x2 multi-lane roundabouts.  In fact, the only 2x2 roundabout analyzed in the Wisconsin study in DePere was one of the the worst performing in the study and was re-striped as a 1x2 roundabout shortly after the safety analysis. 

So basically, the simple 1x2 multi-lane roundabouts are crash prone.  The 2x2 roundabouts are REALLY crash prone.  There was a 2x2 roundabout in Ann Arbor that experienced 167 crashes in the first year of operations.  People can argue that it's just minor fender benders, but when you have THAT many crashes, it becomes a political nightmare.  I wouldn't be surprised that if only 2x2 multi-lane roundabouts were analyzed in a study, that total crashes would double and injury crashes would be about the same.

[DaBigE]

Do we really need another thread rehashing the same roundabout data/crashes/inaccuracies/misrepresentations?? Didn't see this one comin'

[DaBigE]

There are over 60 roundabouts in the Green Bay area with new ones being constructed each year.

I heavily admire WisDOT's consistency with roundabout design. Every roundabout in the state seems to have exactly the same set of markings.

That's because the state design manual is quite specific on how they're supposed to be marked down to the material type, at least for roundabouts on the state system. Local roundabouts are a whole 'nother story...

[SD Mapman]

There's one in Rapid... and that's the only one this side of the river.

[jakeroot]

There are over 60 roundabouts in the Green Bay area with new ones being constructed each year.

I heavily admire WisDOT's consistency with roundabout design. Every roundabout in the state seems to have exactly the same set of markings.

That's because the state design manual is quite specific on how they're supposed to be marked down to the material type, at least for roundabouts on the state system. Local roundabouts are a whole 'nother story...

Good for WisDOT. I figured most states would be specific (at least at the state level) about markings, but at least in Washington, every time WSDOT builds a roundabout, they seems to have different markings. Very strange. And annoying.

Do we really need another thread rehashing the same roundabout data/crashes/inaccuracies/misrepresentations?? Didn't see this one comin'

Indeed. I'm not doing my part by responding to tradephoric's posts here, but truthfully I don't want to have this discussion again. It really got on my nerves for some reason.

[tradephoric]

Do we really need another thread rehashing the same roundabout data/crashes/inaccuracies/misrepresentations?? Didn't see this one comin'

You wanting to make some snarky comments and eyerolls just makes these threads go in circles (something you accuse me of often).  I'm stating facts that were presented at the TRB roundabout conference.  Get over yourself and stick to the facts.

[jakeroot]

Do we really need another thread rehashing the same roundabout data/crashes/inaccuracies/misrepresentations?? Didn't see this one comin'

You wanting to make some snarky comments and eyerolls just makes these threads go in circles (something you accuse me of often).  I'm stating facts that were presented at the TRB roundabout conference.  Get over yourself and stick to the facts.

The facts don't belong in this thread. They're off topic.

[tradephoric]

While not specific to my area, I posted a KMZ file of over 5,100 roundabouts in America that i thought could be useful to this discussion (a file I personally compiled over many, many hours).  I'm trying to contribute and keep this thread on point.  If someone wants to give me flack for a passing comment i made about the safety of multi-lane roundabouts, bash away.

[thenetwork]

C-DOT loves roundabouts at or near most I-70 interchanges west of Vail.  In the Grand Junction/Fruita area alone over the past 10 years, 4 of the 5 interchanges with I-70 have been updated to either roundabouts (3) or a DDI.  The other exits are either too low-volume or there is no room to expand.

[steviep24]

NY 590/Sea Breeze Dr. in Irondequoit, NY has four roundabouts in a row. They were built a few years ago. NY 590 was truncated at Titus Ave. (the first roundabout) when this was done.

https://www.google.com/maps/@43.2116389,-77.5496438,3a,75y,346h,90t/data=!3m6!1e1!3m4!1sYDROo6mLABF-CAAAMMJvow!2e0!7i13312!8i6656?hl=en

https://www.google.com/maps/@43.2160218,-77.5468944,3a,75y,3h,90t/data=!3m6!1e1!3m4!1sSz-onoU741TQiAO5MRdzLg!2e0!7i13312!8i6656?hl=en

https://www.google.com/maps/@43.2236691,-77.5449385,3a,75y,337h,90t/data=!3m6!1e1!3m4!1sbF0EVeFv5LqtdvKxMRlMfg!2e0!7i13312!8i6656?hl=en

https://www.google.com/maps/@43.2270182,-77.5443984,3a,75y,3h,90t/data=!3m6!1e1!3m4!1swUrdGVVToFkFKDpAVHpi0g!2e0!7i13312!8i6656?hl=en

[Zeffy]

Some actual roundabouts near me, as New Jersey quickly learns that they are a safer alternative to death circles:

Bound Brook: https://www.google.com/maps/@40.5617285,-74.5277994,3a,76.5y,189.52h,85.86t/data=!3m6!1e1!3m4!1syhQjYkyd1SwdidwSq9E3rw!2e0!7i13312!8i6656?hl=en
New Brunswick: https://www.google.com/maps/@40.4835353,-74.4325094,3a,48.7y,-3.46h,87.32t/data=!3m6!1e1!3m4!1slZuriB4VBxn2aB4pHzuzQQ!2e0!7i13312!8i6656?hl=en
Trenton (I bet Jeffandnicole knows all about this one  ): https://www.google.com/maps/@40.2160684,-74.7643881,3a,75y,328.21h,88.64t/data=!3m6!1e1!3m4!1s186wTTCKH3LOCRXdh4CLlg!2e0!7i13312!8i6656?hl=en

In addition, from what I read, two new roundabouts will be constructed when the I-95/NJ 29 interchange is redone in the future.

NY 590/Sea Breeze Dr. in Irondequoit, NY has four roundabouts in a row.

I'm pretty sure Malta, NY wins an award for most roundabouts within a 2 mile distance, at least in the United States.

[tradephoric]

I'm pretty sure Malta, NY wins an award for most roundabouts within a 2 mile distance, at least in the United States.

Here are 9 roundabouts along a 1.6 mile route outside Kansas City.  It's redonkulous to have this many roundabouts back to back like this.  Eliminate some of the roundabouts and make them RIRO designs.  I seriously would get car sick driving through these many roundabouts in a row.


https://www.google.com/maps/@38.95994,-94.86981,2453m/data=!3m1!1e3

[cl94]

I grew up 30 miles north of Malta, NY and will be moving back to the area in a month. My hometown has 3 roundabouts with at least 3 more in initial planning stages, plus one just inside the town school complex and a traffic circle in a neighboring town (Hudson Falls). One roundabout replaced a 5-leg intersection, another was put in at a dangerous acute angle intersection, and the third was put in when NYSDEC and Warren County redid the Lake George parking lots.

I count at least 18 (I lost count) in the Malta/Round Lake area. 2 of them are brand new. Almost all were once signals. I don't feel like doing a full count of the region, but there are likely well over 30 currently in place.

Buffalo has a lot of circles within the city limits. There are a handful of roundabouts in the region. Almost all are in Amherst, northern Cheektowaga, and Hamburg, with one in the Falls, one in East Aurora, and 2 on Grand Island. Except for a couple planned ones on the UB campus, there's nothing planned that I know of.

[vdeane]

18 seems right (that's what I just counted), though one of them is technically in Stillwater and the town doesn't acknowledge the existence of the ones in global Foundries or the one on the residential streets near US 9 and NY 67.

EDIT: Missed one.  It's 19, 18 if the one in Stillwater is thrown out

[cl94]

18 seems right (that's what I just counted), though one of them is technically in Stillwater and the town doesn't acknowledge the existence of the ones in global Foundries or the one on the residential streets near US 9 and NY 67.

I didn't count the one on Landau Blvd. I did count the new one at CR 80 and Ruhle Rd that isn't really showing up on Google Maps. 5 are inside the tech park, including the one that is barely 200 feet inside Stillwater.

[steviep24]

Here's an old style traffic circle that's such a mess that it has three traffic signals controlling it.

https://www.google.com/maps/@43.1519366,-77.6591692,3a,75y,270.09h,90t/data=!3m6!1e1!3m4!1sc9h_vSWeWLD-gy5CEaTqYw!2e0!7i13312!8i6656?hl=en

[jakeroot]

Here's an old style traffic circle that's such a mess that it has three traffic signals controlling it.

https://www.google.com/maps/@43.1519366,-77.6591692,3a,75y,270.09h,90t/data=!3m6!1e1!3m4!1sc9h_vSWeWLD-gy5CEaTqYw!2e0!7i13312!8i6656?hl=en

It has the potential to be a very good roundabout, but I doubt Rochester has much money lying around for something like that.

[renegade]

Here are 9 roundabouts along a 1.6 mile route outside Kansas City.  It's redonkulous to have this many roundabouts back to back like this.  Eliminate some of the roundabouts and make them RIRO designs.  I seriously would get car sick driving through these many roundabouts in a row.

Your arguments are all invalidated due to your use of the word 'redonkulous.'  Please move to the time-out area immediately and await further instructions.

I welcome roundabouts as an alternative to the dozens of traffic signals with time-wasting fully-protected lefts that are pervasive in my area.  Keep 'em coming!