#roundabouts — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #roundabouts, aggregated by home.social.
-
TBH it makes sense to call the new #road in #MeltonMowbray #Leicestershire #England "Pork Pie Way" - not just for the popular #food item made there, but the amount of #roundabouts along the route 😁
-
TBH it makes sense to call the new #road in #MeltonMowbray #Leicestershire #England "Pork Pie Way" - not just for the popular #food item made there, but the amount of #roundabouts along the route 😁
-
TBH it makes sense to call the new #road in #MeltonMowbray #Leicestershire #England "Pork Pie Way" - not just for the popular #food item made there, but the amount of #roundabouts along the route 😁
-
TBH it makes sense to call the new #road in #MeltonMowbray #Leicestershire #England "Pork Pie Way" - not just for the popular #food item made there, but the amount of #roundabouts along the route 😁
-
TBH it makes sense to call the new #road in #MeltonMowbray #Leicestershire #England "Pork Pie Way" - not just for the popular #food item made there, but the amount of #roundabouts along the route 😁
-
Roundabouts.
I will never understand why so many U.S. drivers get annoyed by roundabouts. The manage traffic very well and are simple to navigate. They reduce rear-end collisions and pedestrian incidents, there’s less emissions from folks sitting at a red light, and their design is optimal for traffic calming measures.
Unlike their old school traffic circle and rotary counterparts, roundabouts are a slow speed, simple way to manage traffic at an intersection. They’re not complicated and they’re not scary.
I would really like to see more roundabouts and less traffic lights in the United States, but drivers seem unreasonably opposed to them.
#motorists #roundabouts #traffic -
Roundabouts.
I will never understand why so many U.S. drivers get annoyed by roundabouts. The manage traffic very well and are simple to navigate. They reduce rear-end collisions and pedestrian incidents, there’s less emissions from folks sitting at a red light, and their design is optimal for traffic calming measures.
Unlike their old school traffic circle and rotary counterparts, roundabouts are a slow speed, simple way to manage traffic at an intersection. They’re not complicated and they’re not scary.
I would really like to see more roundabouts and less traffic lights in the United States, but drivers seem unreasonably opposed to them.
#motorists #roundabouts #traffic -
Hype for the Future 50IND: The Indianapolis Area, Explained
Introduction Indianapolis serves in the present day as the capital and largest city of the State of Indiana, located relatively centrally within the State. While Sheridan in Hamilton County is the community closest to the true geographic center of the State of Indiana, the community remains firmly connected to the Indianapolis area, even if the local culture is more exurban and occasionally even rurally coded. History Though Corydon in Southern Indiana was an earlier capital in modern-day […] -
#Roundabouts usually improve car traffic and make it safer but under typical design criteria, they lead to negative impacts to 🚲, as they increase risks and difficult cycleways integration, and to 🚶 that need to walk longer due to pedestrian crosses setbacks. The only exception to this are the"dutch roundabout" (low curvatureR+just a single lane out). In the images we can see the differences between the number of roundabouts in a(ny) Spanish city and Copenhagen.
#sustainableMobility -
https://www.europesays.com/uk/474421/ Artists wanted for large sculpture at Tallassee Road roundabout #AI #Art #Arts #ArtsAndDesign #Athens #construction #ConstructionU0026Maintenance #Design #Enabled #Entertainment #exhibits #Ga #highlights #local #LocalNews #maintenance #Neutral #News #Overall #OverallNeutral #Public #PublicArtExhibits #Roundabouts #sculpture #Story #StoryHighlightsAIEnabled #u0026 #UK #UnitedKingdom #visual #VisualArtU0026Design
-
"Roundabout" is a song by the English #progressiveRock band #Yes from their fourth studio album #Fragile, released in November 1971. It was written by singer #JonAnderson and guitarist #SteveHowe and produced by the band and #EddyOfford. The song originated when the band were on tour and travelled from #Aberdeen to #Glasgow, and went through many #roundabouts on the way. The song was released as an edited single in the US in January 1972 with "#LongDistanceRunaround".
https://www.youtube.com/watch?v=kmZoQFYYx8U -
Coalition proposes alternatives to controversial #GorhamConnector project
Maine Public | By Nicole Ogrysko
Published September 6, 2024"A coalition of #environmental, planning and #transportation groups is advocating for alternatives to the controversial Gorham Connector project.
"The #MaineTurnpikeAuthority has proposed a toll road that would run from Exit 45 in South Portland through Westbrook and and Scarborough to the #GorhamBypass at Route 114. Turnpike authorities have said the 4.8-mile, four-lane highway would significantly reduce traffic congestion [by a whole 10 minutes, according to MTA's own study!!!].
"But the coalition, known as #MainersForSmarterTransportation (#M4ST), is out with a report this week that details a long list of recommendations for reducing congestion in the region.
"'Simply replacing some of the existing traffic lights with #roundabouts would reduce congestion and reduce #GreenhouseGas emissions,' said #PaulDrinan, active transportation director for the #BicycleCoalitionOfMaine, which is part of Mainers for Smarter Transportation. 'We could also convert some of the old traffic lights with what they call smart lights.'
"Other recommendations include improving the shoulders along nearby roads and adding #BikeLanes. Drinan said the group is also urging the Turnpike Authority to delay the Connector project for at least two years, so that a #RapidBusTransit plan developed by the Greater Portland Council of Governments can take shape.
"The group also believes outdated and flawed traffic data are being used make the case for the project."
[Plus contracts and kickbacks from #PikeIndustries and other vendors]
#SaveRedBrook #SaveSmilingHillFarm #GorhamConnector #GorhamBypass
#Maine #RapidTransit #LightRail #SaveTheFarms #SaveTheForest #Wildlife #LightRail -
This report (which crops up every few months) is often used to spin #EV adoption, but the reality is its the #driving schools that are buying EVs for their fleets - most of the young #learner #drivers who choose #automatic #cars are picking #petrol / #diesel vehicles when they pass their test , the main reason folk are increasingly choosing automatic 'boxes in #UK is the stress of learning to drive and sheer weight of traffic (I've driven in #Swindon and it has an abundance of #roundabouts, where driving manual can be a chore).
There *isn't* at present much of "green dividend" as is often claimed (although it must reduce emissions from driving school cars, and used Renault Zoe and Nissan Leaf are now reaching "first car" price points)
-
Fucking #rotaries #ruining the reputations of honest #roundabouts!
-
Bad news is I'm on a course all week. Good news is lunch is provided. #Swings #Roundabouts
-
När Nederländska rondeller börjar spridas till andra ställen så har Houten tagit det till en ny nivå.
#urbanism #cykel #rondeller #livablecities #bicycle #roundabouts
-
I suspect there are #roundabouts up and down the #UK that have been 'improved' by completely confusing painted lines.
This one deserves a special award for incompetent #roadwork -
"In addition to the four #roundabouts, buffered bike lanes, pedestrian upgrades, retaining walls and more are part of the project.”
…
Adaptive #AI on traffic signals vs roundabouts. "Will either be successful in easing congestion? Time will tell.” —Erik Chalhoub, #MontereyCountyNow#MontereyCounty #MarinaCA #CASR68 #TransportationAgencyForMontereyCounty #TrafficCongestion
-
We have just published our third talk from #SotB2025 @joshtumath - How do we keep going wrong? Roundabouts & APIs
https://2025.stateofthebrowser.com/speaker/josh-tumath/
#APIs #CSS #Masonary #Roundabouts -
Careless drivers III
Speeding vehicles demolish roundabouts. They are just razed to the ground.
#cars #roads #speeding #drivers #NSW #infrastructure #roundabouts #destruction -
If ever there was an example of how to build a roundabout, it is surely the roundabout in Hobart, Tasmania.
Roundabouts are usually boring and anaesthetic structures of solid concrete or badly maintained grass and weeds. But Hobart decided to do it better.
Situated on the edge of the central business district, the Hobart roundabout is also a park. Above, vehicle traffic to and from the city circulates but down in the roundabout, in the park, you find trees which cast summer shade and which when winter comes lose their leaves to provide a sheltered and warm sitting place for local people. The roundabout is structured as a stepped, circular park with lawn terraces, seats and in the middle a combined sculpture and fountain. Pedestrian subways link to nearby footpaths and tracks through adjacent parkland.
In terms of placemaking or as it is sometimes called, tactical urbanism, the Hobart roundabout is a linger node, a safe and inviting place that invites people to break their journey and take a few minutes with the sound of the fountains falling water replacing that of the traffic above.
#Roundabouts #Hobart #Tasmania #Sculpture #Fountains #urbandesign
-
"You can’t talk #roundabouts without mentioning Carmel, Indiana. The Indianapolis suburb is home to more than 150 of them, by far the most of any US city... largely thanks to Jim Brainard, a Republican who served as Carmel’s mayor for almost three decades." (Brainard was inspired while a graduate student in the UK.) The US now has more than 10,000 of them.
https://www.bloomberg.com/news/features/2025-01-06/can-american-drivers-learn-to-love-roundabouts
-
There are so many #roundabouts going in around our area, which I’m totally in favor of.
One that’s been here for a while got an upgrade this week when they finally got rid of the stop signs that were at each of the 4 entrances. It was the dumbest thing because it was the only one like it, and everyone treated it mostly like a normal roundabout anyway. It made traffic back up so much instead of promoting flow.
-
#Roundabouts and #USAResistance: This is purely conjecture on my part, and not really founded by data or evidence, bt I think I know what the problem is with the USA not likeing or having a lot of roundabouts. I have the impression that the issue is that with traditional intersections, the general rule is that if 2 vehicles get to an intersection at the same time, the driver on the right of the other driver(s) has priority and goes first. This allows that driver to focus on where they are going.
-
Have to agree that replacing the space hogging cloverleaf with a simpler design makes a lot of sense. Same logic could likely be applied to many similarly stupid original designs.
-
> Vanderbilt also argues that round-abouts may be safer than traditional stoplight intersections. Though traffic circles may seem confusing, they have fewer "conflict points," places where cars can physically hit an object or person. Intersections have 32 of these conflict points, where round-abouts only have 16.
https://www.npr.org/2008/07/28/92945220/navigating-the-science-and-sociology-of-traffic
-
New roundabout technology introduced in California, with small side walls to prevent collisions... https://www.tiktok.com/@speedyautosecurity/video/7320261586449583393 #roundabouts #america
-
#shownotes for @gamesatwork_biz #podcast e440 are done, and publication set for tomorrow on https://www.gamesatwork.biz and all your favorite podcast feeds! Topics this week include stories on #Flipper (Zero & 1960s TV show), a plethora of #popups, #roundabouts, automotive #privacy, large scale #3Dprinting and much more! Be sure to subscribe so you don’t miss an episode!
-
Got to love this explanation of roundabouts aimed at Americans who may be way less familiar with them. I learned to drive around the magic roundabout in Hemel Hempstead (Swindon's version is shown in the piece) #roundabouts #driving https://theconversation.com/what-are-roundabouts-a-transportation-engineer-explains-the-safety-benefits-of-these-circular-intersections-215412
-
“What Are Roundabouts? A Transportation Engineer Explains The Safety Benefits Of These Circular Intersections”, The Conversation (https://theconversation.com/what-are-roundabouts-a-transportation-engineer-explains-the-safety-benefits-of-these-circular-intersections-215412).
-
The centres of roundabouts are often adorned with art installations, sculptures or landscaping. In 2006, a phenomenon began in Sweden where people began placing home made sculptures of Dogs on roundabouts.
10 things you might not know about roundabouts:
https://topicaltens.blogspot.com/2020/10/18-october-10-facts-about-roundabouts.html
-
Never understood why Canadians & Americans seem to not like the roundabout. It keeps traffic flowing & statistically it causes less collisions.
I see a lot of local opposition whenever they're discussed.
https://www.cnbc.com/2023/08/16/why-roundabouts-are-so-uncommon-in-the-us.html
-
American and Canadian Cities with the Most Roundabouts – UPDATE #2
Guest post by Dan T. – Thank you, Dan!
[Note: To most people, the terms traffic circle, rotary, and roundabout are synonyms, but not to traffic engineers. Engineers usetraffic circle as a generic term for all circular intersections, while rotaries and roundabouts (sometimes modern roundabouts) are subsets that have specific features as discussed in the article. This article will use the traffic engineers’ definitions.]
Roundabout in Carmel, IN – Source: eri.iu.eduTraffic engineers love roundabouts. These circular intersections do several things to make traffic better. They cause drivers to slow down, but without forcing them to a complete stop, at least not all the time. They reduce the number of conflict points in an intersection. And where those conflict points do occur, the traffic is intersecting at a shallow angle, rather than a right angle as at traditional intersections. All these drastically reduce the number of serious accidents where injuries or fatalities result.
Circular intersections have a long history. For example, Columbus Circle (which is by no means the first one) in New York was first formed about 1870, although it didn’t get its name until the 1890s when the statue of Columbus was erected. In those horse-and-buggy days, people went around the circle both directions. In 1905, William Phelps Eno, a proto-traffic
Source: co.washington.mn.us
engineer, suggested that all the traffic in Columbus Circle should go around the same direction. This was a step towards the modern roundabout, but there were more steps to be made. (Columbus Circle, by the way, is classified by traffic engineers as a signalized traffic
circle and not a roundabout. Modern roundabouts do not have signals.)The earliest traffic circles had the legs meeting the circle at right angle intersections. They also often had parking allowed along the circular road and allowed pedestrians to access the central island. Some even had buildings in the center. These features didn’t do much to
New roundabout replacing a rotary in Kingston, NY – Source: mainetti.law
improve traffic, so during the 1930s, the rotary was developed.Rotaries are large (some as much as 600 feet across) and initially had no traffic controls. The nearside priority rule, where drivers yield to a vehicle coming from the right, was the most common rule. This meant that vehicles within the circle had to yield to incoming vehicles. Under heavy traffic, this resulted in gridlock. When traffic control signage was installed, they were often designed to speed traffic between two of the legs. Those two approaches had no stop or yield signs as they entered, the traffic already in the circle had to yield to them. Again, gridlock would occur under heavy traffic loads.
Source: co.washington.mn.usThe incoming lanes of rotatries were angled so they met the circle at close to a perfect tangent, but then the incoming vehicles would have to change lanes to get in the circle. The traffic would not be expected to slow down at all, but then have to change lanes again to exit. The high speeds (as much as 40 mph) and lane changes tended to cause serious
accidents. Because of the gridlock and high accident rate, rotaries lost favor in the US in the mid-1950s.The modern roundabout was developed in Britain in 1966 by Frank Blackmore. The big improvement was that the traffic already in the circle always gets the right-of-way (offside priority rule) and anyone trying to enter it should yield to them. They also are smaller and
require drivers to slow down. Further refinements have been made over the years: the shape of the splitter islands was optimized to angle the incoming traffic in the right direction while still giving drivers a good view of the traffic they must yield to, truck aprons provide for
large vehicles to use them, and subtle curves in the incoming lanes as well as the final curve at the splitter island slow the incoming traffic.The UK and western Europe in general quickly adopted modern roundabouts and now there’s well in excess of 100,000 there. The US and Canada were slow to adopt the modern roundabout. Traffic circles still had the bad reputation, so even the improved version from Britain was not looked on favorably. The first two modern roundabouts in the US were not built until 1990. Those two were in Summerlin, Nevada, a planned community in Las Vegas. Following that, there was a very slow adoption in the rest of the country. By the turn of the century, there were still only a couple hundred in the entire US. They started to take off in the oughts to the point where there are now about 8,000 with 450 to 500 new ones being built every year.
The following list is based on an extensive database of circular intersections maintained by Kittelson and Associates, an engineering firm based in Portland OR (see the link at the end of the article). The entries in the database are divided into five categories: Roundabouts,
Rotaries, Traffic Calming Circles, Signalized Circles, and Other. The counts in the lists below are only of Roundabouts, and not of the other categories.[Note: Kittelson doesn’t make any money from hosting the database and all the entries are contributed by volunteers. If you know of a roundabout not in the database, feel free to submit it for inclusion.]
Source: carmel.in.govThe city with the most roundabouts (possibly the most in the entire world) is Carmel, Indiana, a suburb of Indianapolis. In the late 1990s, their mayor, James Brainard, who’d learned of them at school in England, started pushing the city to replace all of its traffic lights with roundabouts. The Kittelson database contains all of them, but some are classified as Other for various reasons. Several allow pedestrian access to the central island, some do not have splitter islands, one has parking along the circular roadway. The counts in this list are only of those classified as Roundabouts in the database.
- Carmel IN = 155 – updated 8/5/25
- Colorado Springs CO = 61
- Columbia MO = 55 – updated 12/9/25 – thank you, Cindy!
- Bend OR = 55 – updated 4/14/26 – thank you, Megan
- Loveland CO = 47
- Austin TX = 47 – updated 8/5/25 – thank you, J. Lee!
- Frisco TX = 45
- Charlotte NC = 44
- Lincoln NE = 43
- Conway AR = 38 – updated 4/22/26 – thank you, Landen
- Durham NC = 37
- Raleigh NC = 37
- Las Vegas NV = 37
- Fort Worth TX = 35
- Omaha NE = 35
- Noblesville IN = 34
- Kansas City MO = 33
- The Villages FL = 32
- Miami FL = 31
- Fishers IN = 28
- Sarasota FL = 27
- Howard WI = 25
- Ladera Ranch CA = 25
- Lenexa KS = 25
- Kennewick WA = 24
- Lawrence KS = 24
- Chattanooga TN = 23
- El Paso TX = 23
- Westfield IN = 23
- Dublin OH = 22
- McKinney TX = 22
- Tallahassee FL = 22
- Mount Pleasant SC = 21
- Toledo OH = 21
- Billings MT = 20
- Gainesville FL = 20
- Wilmington NC = 20 – added 3/21/22
- Woodbury MN = 20
- Cary NC = 19
- De Pere WI = 19 – added 3/21/22
- Fort Wayne IN = 19
- Olathe KS = 19
- Reno NV = 19
- Anchorage AK = 18 – added 3/21/22
- Brighton CO = 18
- Columbus GA = 18
- Lacey WA = 18
- Neenah WI = 18
- Olympia WA = 18
- Roseville CA = 18
- St George UT = 18
- Santa Fe NM = 18
- Spokane WA = 18
- West Jordan UT = 18
- Jacksonville FL = 17 – added 3/21/22
- Orlando FL = 17
- Oxford MS = 17 – added 3/21/22
- Rogers, AR = 17 – added 4/22/26 – thank you Landen
- Tampa FL = 17
- Topeka KS = 17
- Wake Forest NC = 17
- Alpharetta GA = 16
- Grand Junction CO = 16
- Indianapolis IN = 16
- Madison WI = 16
- Modesto CA = 16
- Overland Park KS = 16
- Appleton WI = 15
- Jacksonville FL = 15
- Lee’s Summit MO = 15
- Little Rock, AR = 15 – added 4/22/26 – thank you, Landen
- Scottsdale AZ = 15
Canada similarly got off to a slow start in building modern roundabouts.The first was built in Montreal in 1998. But they also took off in the oughts (2000-2009) and now there’s over 1000 in the entire country, with 60 or 70 new ones every year.
- Calgary AB = 55
- Ottawa ON = 51
- Winnipeg MB = 47
- Lethbridge AB = 29 – added 3/21/22
- Cambridge ON = 25
- Kitchener ON = 21
- Waterloo ON = 20
- Kelowna BC = 17
- Whitchurch-Stouffville ON = 14
- Markham ON = 13
- London ON = 12
- Milton ON = 12
- Victoria BC = 12
- Aurora ON = 11
- Gatineau QC = 11 – added 3/21/22
- St John’s NL = 11
- Saskatoon SK= 11
- Surrey BC = 11
- Terrebonne QC = 11
- Sherbrooke QC = 10
- Richmond Hill ON = 9 – added 3/21/22
- Whitehorse YT =9 – added 3/21/22
- Windsor ON = 9
- Charlottetown PE = 8
- Chilliwack BC = 8
- Hamilton ON = 8
- Saguenay QC = 8
- St Thomas ON = 8
- West Kelowna BC = 8
[Note: When submitting a new roundabout to the Kittelson database, the city name provided by the software is actually the name of the post office that serves where the roundabout is. While that can be changed by the submitter, it usually is not. What this means is that many cities get credit for roundabouts outside their city limits. Unfortunately there’s no simple way to fix this, so the city counts above are not perfectly accurate.]
SOURCES:
- https://roundabouts.kittelson.com/ Kittelson’s database
- https://www.carmel.in.gov/department-services/engineering/roundabouts – Carmel’s roundabout page, which has a link to a map of all Carmel’s roundabouts.
- How Stuff Works: Roundabouts – https://science.howstuffworks.com/engineering/civil/roundabouts.htm
- A HISTORY OF ROUNDABOUTS IN THE UNITED STATES AND FRANCE – https://babel.hathitrust.org/cgi/pt?id=mdp.39015023846507&view=1up&seq=629
- Personal knowledge
- https://www.carmel.in.gov/home/showpublisheddocument/22960/638775633694530000
-
American and Canadian Cities with the Most Roundabouts – UPDATE #2
Guest post by Dan T. – Thank you, Dan!
[Note: To most people, the terms traffic circle, rotary, and roundabout are synonyms, but not to traffic engineers. Engineers usetraffic circle as a generic term for all circular intersections, while rotaries and roundabouts (sometimes modern roundabouts) are subsets that have specific features as discussed in the article. This article will use the traffic engineers’ definitions.]
Roundabout in Carmel, IN – Source: eri.iu.eduTraffic engineers love roundabouts. These circular intersections do several things to make traffic better. They cause drivers to slow down, but without forcing them to a complete stop, at least not all the time. They reduce the number of conflict points in an intersection. And where those conflict points do occur, the traffic is intersecting at a shallow angle, rather than a right angle as at traditional intersections. All these drastically reduce the number of serious accidents where injuries or fatalities result.
Circular intersections have a long history. For example, Columbus Circle (which is by no means the first one) in New York was first formed about 1870, although it didn’t get its name until the 1890s when the statue of Columbus was erected. In those horse-and-buggy days, people went around the circle both directions. In 1905, William Phelps Eno, a proto-traffic
Source: co.washington.mn.us
engineer, suggested that all the traffic in Columbus Circle should go around the same direction. This was a step towards the modern roundabout, but there were more steps to be made. (Columbus Circle, by the way, is classified by traffic engineers as a signalized traffic
circle and not a roundabout. Modern roundabouts do not have signals.)The earliest traffic circles had the legs meeting the circle at right angle intersections. They also often had parking allowed along the circular road and allowed pedestrians to access the central island. Some even had buildings in the center. These features didn’t do much to
New roundabout replacing a rotary in Kingston, NY – Source: mainetti.law
improve traffic, so during the 1930s, the rotary was developed.Rotaries are large (some as much as 600 feet across) and initially had no traffic controls. The nearside priority rule, where drivers yield to a vehicle coming from the right, was the most common rule. This meant that vehicles within the circle had to yield to incoming vehicles. Under heavy traffic, this resulted in gridlock. When traffic control signage was installed, they were often designed to speed traffic between two of the legs. Those two approaches had no stop or yield signs as they entered, the traffic already in the circle had to yield to them. Again, gridlock would occur under heavy traffic loads.
Source: co.washington.mn.usThe incoming lanes of rotatries were angled so they met the circle at close to a perfect tangent, but then the incoming vehicles would have to change lanes to get in the circle. The traffic would not be expected to slow down at all, but then have to change lanes again to exit. The high speeds (as much as 40 mph) and lane changes tended to cause serious
accidents. Because of the gridlock and high accident rate, rotaries lost favor in the US in the mid-1950s.The modern roundabout was developed in Britain in 1966 by Frank Blackmore. The big improvement was that the traffic already in the circle always gets the right-of-way (offside priority rule) and anyone trying to enter it should yield to them. They also are smaller and
require drivers to slow down. Further refinements have been made over the years: the shape of the splitter islands was optimized to angle the incoming traffic in the right direction while still giving drivers a good view of the traffic they must yield to, truck aprons provide for
large vehicles to use them, and subtle curves in the incoming lanes as well as the final curve at the splitter island slow the incoming traffic.The UK and western Europe in general quickly adopted modern roundabouts and now there’s well in excess of 100,000 there. The US and Canada were slow to adopt the modern roundabout. Traffic circles still had the bad reputation, so even the improved version from Britain was not looked on favorably. The first two modern roundabouts in the US were not built until 1990. Those two were in Summerlin, Nevada, a planned community in Las Vegas. Following that, there was a very slow adoption in the rest of the country. By the turn of the century, there were still only a couple hundred in the entire US. They started to take off in the oughts to the point where there are now about 8,000 with 450 to 500 new ones being built every year.
The following list is based on an extensive database of circular intersections maintained by Kittelson and Associates, an engineering firm based in Portland OR (see the link at the end of the article). The entries in the database are divided into five categories: Roundabouts,
Rotaries, Traffic Calming Circles, Signalized Circles, and Other. The counts in the lists below are only of Roundabouts, and not of the other categories.[Note: Kittelson doesn’t make any money from hosting the database and all the entries are contributed by volunteers. If you know of a roundabout not in the database, feel free to submit it for inclusion.]
Source: carmel.in.govThe city with the most roundabouts (possibly the most in the entire world) is Carmel, Indiana, a suburb of Indianapolis. In the late 1990s, their mayor, James Brainard, who’d learned of them at school in England, started pushing the city to replace all of its traffic lights with roundabouts. The Kittelson database contains all of them, but some are classified as Other for various reasons. Several allow pedestrian access to the central island, some do not have splitter islands, one has parking along the circular roadway. The counts in this list are only of those classified as Roundabouts in the database.
- Carmel IN = 155 – updated 8/5/25
- Colorado Springs CO = 61
- Columbia MO = 55 – updated 12/9/25 – thank you, Cindy!
- Bend OR = 55 – updated 4/14/26 – thank you, Megan
- Loveland CO = 47
- Austin TX = 47 – updated 8/5/25 – thank you, J. Lee!
- Frisco TX = 45
- Charlotte NC = 44
- Lincoln NE = 43
- Conway AR = 38 – updated 4/22/26 – thank you, Landen
- Durham NC = 37
- Raleigh NC = 37
- Las Vegas NV = 37
- Fort Worth TX = 35
- Omaha NE = 35
- Noblesville IN = 34
- Kansas City MO = 33
- The Villages FL = 32
- Miami FL = 31
- Fishers IN = 28
- Sarasota FL = 27
- Howard WI = 25
- Ladera Ranch CA = 25
- Lenexa KS = 25
- Kennewick WA = 24
- Lawrence KS = 24
- Chattanooga TN = 23
- El Paso TX = 23
- Westfield IN = 23
- Dublin OH = 22
- McKinney TX = 22
- Tallahassee FL = 22
- Mount Pleasant SC = 21
- Toledo OH = 21
- Billings MT = 20
- Gainesville FL = 20
- Wilmington NC = 20 – added 3/21/22
- Woodbury MN = 20
- Cary NC = 19
- De Pere WI = 19 – added 3/21/22
- Fort Wayne IN = 19
- Olathe KS = 19
- Reno NV = 19
- Anchorage AK = 18 – added 3/21/22
- Brighton CO = 18
- Columbus GA = 18
- Lacey WA = 18
- Neenah WI = 18
- Olympia WA = 18
- Roseville CA = 18
- St George UT = 18
- Santa Fe NM = 18
- Spokane WA = 18
- West Jordan UT = 18
- Jacksonville FL = 17 – added 3/21/22
- Orlando FL = 17
- Oxford MS = 17 – added 3/21/22
- Rogers, AR = 17 – added 4/22/26 – thank you Landen
- Tampa FL = 17
- Topeka KS = 17
- Wake Forest NC = 17
- Alpharetta GA = 16
- Grand Junction CO = 16
- Indianapolis IN = 16
- Madison WI = 16
- Modesto CA = 16
- Overland Park KS = 16
- Appleton WI = 15
- Jacksonville FL = 15
- Lee’s Summit MO = 15
- Little Rock, AR = 15 – added 4/22/26 – thank you, Landen
- Scottsdale AZ = 15
Canada similarly got off to a slow start in building modern roundabouts.The first was built in Montreal in 1998. But they also took off in the oughts (2000-2009) and now there’s over 1000 in the entire country, with 60 or 70 new ones every year.
- Calgary AB = 55
- Ottawa ON = 51
- Winnipeg MB = 47
- Lethbridge AB = 29 – added 3/21/22
- Cambridge ON = 25
- Kitchener ON = 21
- Waterloo ON = 20
- Kelowna BC = 17
- Whitchurch-Stouffville ON = 14
- Markham ON = 13
- London ON = 12
- Milton ON = 12
- Victoria BC = 12
- Aurora ON = 11
- Gatineau QC = 11 – added 3/21/22
- St John’s NL = 11
- Saskatoon SK= 11
- Surrey BC = 11
- Terrebonne QC = 11
- Sherbrooke QC = 10
- Richmond Hill ON = 9 – added 3/21/22
- Whitehorse YT =9 – added 3/21/22
- Windsor ON = 9
- Charlottetown PE = 8
- Chilliwack BC = 8
- Hamilton ON = 8
- Saguenay QC = 8
- St Thomas ON = 8
- West Kelowna BC = 8
[Note: When submitting a new roundabout to the Kittelson database, the city name provided by the software is actually the name of the post office that serves where the roundabout is. While that can be changed by the submitter, it usually is not. What this means is that many cities get credit for roundabouts outside their city limits. Unfortunately there’s no simple way to fix this, so the city counts above are not perfectly accurate.]
SOURCES:
- https://roundabouts.kittelson.com/ Kittelson’s database
- https://www.carmel.in.gov/department-services/engineering/roundabouts – Carmel’s roundabout page, which has a link to a map of all Carmel’s roundabouts.
- How Stuff Works: Roundabouts – https://science.howstuffworks.com/engineering/civil/roundabouts.htm
- A HISTORY OF ROUNDABOUTS IN THE UNITED STATES AND FRANCE – https://babel.hathitrust.org/cgi/pt?id=mdp.39015023846507&view=1up&seq=629
- Personal knowledge
- https://www.carmel.in.gov/home/showpublisheddocument/22960/638775633694530000
-
"In addition to the four #roundabouts, buffered bike lanes, pedestrian upgrades, retaining walls and more are part of the project.”
…
Adaptive #AI on traffic signals vs roundabouts. "Will either be successful in easing congestion? Time will tell.” —Erik Chalhoub, #MontereyCountyNow#MontereyCounty #MarinaCA #CASR68 #TransportationAgencyForMontereyCounty #TrafficCongestion
-
"In addition to the four #roundabouts, buffered bike lanes, pedestrian upgrades, retaining walls and more are part of the project.”
…
Adaptive #AI on traffic signals vs roundabouts. "Will either be successful in easing congestion? Time will tell.” —Erik Chalhoub, #MontereyCountyNow#MontereyCounty #MarinaCA #CASR68 #TransportationAgencyForMontereyCounty #TrafficCongestion
-
"In addition to the four #roundabouts, buffered bike lanes, pedestrian upgrades, retaining walls and more are part of the project.”
…
Adaptive #AI on traffic signals vs roundabouts. "Will either be successful in easing congestion? Time will tell.” —Erik Chalhoub, #MontereyCountyNow#MontereyCounty #MarinaCA #CASR68 #TransportationAgencyForMontereyCounty #TrafficCongestion
-
"In addition to the four #roundabouts, buffered bike lanes, pedestrian upgrades, retaining walls and more are part of the project.”
…
Adaptive #AI on traffic signals vs roundabouts. "Will either be successful in easing congestion? Time will tell.” —Erik Chalhoub, #MontereyCountyNow#MontereyCounty #MarinaCA #CASR68 #TransportationAgencyForMontereyCounty #TrafficCongestion
-
Hacking the Road: Roundabouts - If you are from the US, you might be surprised at how prevalent roundabouts are in most of the world... more: https://hackaday.com/2020/05/25/hacking-the-road-roundabouts/ #civilengineering #trafficcircles #engineering #roundabouts #featured #history #swindon #traffic
-
Normalerweise ist ein #Kreisverkehr ziemlich öde. Diesen hier auf dem #Flugfeld in #Boeblingen haben Anwohner:innen mit unserer #UrbanGardening Initiative letztes Jahr bepflanzt 🌱🐝🌾🐞🌺🦋🌸
Normally, #roundabouts are boring. Residents planted this one on last year with our #UrbanGardening Initiative
-
Coalition proposes alternatives to controversial #GorhamConnector project
Maine Public | By Nicole Ogrysko
Published September 6, 2024"A coalition of #environmental, planning and #transportation groups is advocating for alternatives to the controversial Gorham Connector project.
"The #MaineTurnpikeAuthority has proposed a toll road that would run from Exit 45 in South Portland through Westbrook and and Scarborough to the #GorhamBypass at Route 114. Turnpike authorities have said the 4.8-mile, four-lane highway would significantly reduce traffic congestion [by a whole 10 minutes, according to MTA's own study!!!].
"But the coalition, known as #MainersForSmarterTransportation (#M4ST), is out with a report this week that details a long list of recommendations for reducing congestion in the region.
"'Simply replacing some of the existing traffic lights with #roundabouts would reduce congestion and reduce #GreenhouseGas emissions,' said #PaulDrinan, active transportation director for the #BicycleCoalitionOfMaine, which is part of Mainers for Smarter Transportation. 'We could also convert some of the old traffic lights with what they call smart lights.'
"Other recommendations include improving the shoulders along nearby roads and adding #BikeLanes. Drinan said the group is also urging the Turnpike Authority to delay the Connector project for at least two years, so that a #RapidBusTransit plan developed by the Greater Portland Council of Governments can take shape.
"The group also believes outdated and flawed traffic data are being used make the case for the project."
[Plus contracts and kickbacks from #PikeIndustries and other vendors]
#SaveRedBrook #SaveSmilingHillFarm #GorhamConnector #GorhamBypass
#Maine #RapidTransit #LightRail #SaveTheFarms #SaveTheForest #Wildlife #LightRail -
Coalition proposes alternatives to controversial #GorhamConnector project
Maine Public | By Nicole Ogrysko
Published September 6, 2024"A coalition of #environmental, planning and #transportation groups is advocating for alternatives to the controversial Gorham Connector project.
"The #MaineTurnpikeAuthority has proposed a toll road that would run from Exit 45 in South Portland through Westbrook and and Scarborough to the #GorhamBypass at Route 114. Turnpike authorities have said the 4.8-mile, four-lane highway would significantly reduce traffic congestion [by a whole 10 minutes, according to MTA's own study!!!].
"But the coalition, known as #MainersForSmarterTransportation (#M4ST), is out with a report this week that details a long list of recommendations for reducing congestion in the region.
"'Simply replacing some of the existing traffic lights with #roundabouts would reduce congestion and reduce #GreenhouseGas emissions,' said #PaulDrinan, active transportation director for the #BicycleCoalitionOfMaine, which is part of Mainers for Smarter Transportation. 'We could also convert some of the old traffic lights with what they call smart lights.'
"Other recommendations include improving the shoulders along nearby roads and adding #BikeLanes. Drinan said the group is also urging the Turnpike Authority to delay the Connector project for at least two years, so that a #RapidBusTransit plan developed by the Greater Portland Council of Governments can take shape.
"The group also believes outdated and flawed traffic data are being used make the case for the project."
[Plus contracts and kickbacks from #PikeIndustries and other vendors]
#SaveRedBrook #SaveSmilingHillFarm #GorhamConnector #GorhamBypass
#Maine #RapidTransit #LightRail #SaveTheFarms #SaveTheForest #Wildlife #LightRail -
Coalition proposes alternatives to controversial #GorhamConnector project
Maine Public | By Nicole Ogrysko
Published September 6, 2024"A coalition of #environmental, planning and #transportation groups is advocating for alternatives to the controversial Gorham Connector project.
"The #MaineTurnpikeAuthority has proposed a toll road that would run from Exit 45 in South Portland through Westbrook and and Scarborough to the #GorhamBypass at Route 114. Turnpike authorities have said the 4.8-mile, four-lane highway would significantly reduce traffic congestion [by a whole 10 minutes, according to MTA's own study!!!].
"But the coalition, known as #MainersForSmarterTransportation (#M4ST), is out with a report this week that details a long list of recommendations for reducing congestion in the region.
"'Simply replacing some of the existing traffic lights with #roundabouts would reduce congestion and reduce #GreenhouseGas emissions,' said #PaulDrinan, active transportation director for the #BicycleCoalitionOfMaine, which is part of Mainers for Smarter Transportation. 'We could also convert some of the old traffic lights with what they call smart lights.'
"Other recommendations include improving the shoulders along nearby roads and adding #BikeLanes. Drinan said the group is also urging the Turnpike Authority to delay the Connector project for at least two years, so that a #RapidBusTransit plan developed by the Greater Portland Council of Governments can take shape.
"The group also believes outdated and flawed traffic data are being used make the case for the project."
[Plus contracts and kickbacks from #PikeIndustries and other vendors]
#SaveRedBrook #SaveSmilingHillFarm #GorhamConnector #GorhamBypass
#Maine #RapidTransit #LightRail #SaveTheFarms #SaveTheForest #Wildlife #LightRail -
Coalition proposes alternatives to controversial #GorhamConnector project
Maine Public | By Nicole Ogrysko
Published September 6, 2024"A coalition of #environmental, planning and #transportation groups is advocating for alternatives to the controversial Gorham Connector project.
"The #MaineTurnpikeAuthority has proposed a toll road that would run from Exit 45 in South Portland through Westbrook and and Scarborough to the #GorhamBypass at Route 114. Turnpike authorities have said the 4.8-mile, four-lane highway would significantly reduce traffic congestion [by a whole 10 minutes, according to MTA's own study!!!].
"But the coalition, known as #MainersForSmarterTransportation (#M4ST), is out with a report this week that details a long list of recommendations for reducing congestion in the region.
"'Simply replacing some of the existing traffic lights with #roundabouts would reduce congestion and reduce #GreenhouseGas emissions,' said #PaulDrinan, active transportation director for the #BicycleCoalitionOfMaine, which is part of Mainers for Smarter Transportation. 'We could also convert some of the old traffic lights with what they call smart lights.'
"Other recommendations include improving the shoulders along nearby roads and adding #BikeLanes. Drinan said the group is also urging the Turnpike Authority to delay the Connector project for at least two years, so that a #RapidBusTransit plan developed by the Greater Portland Council of Governments can take shape.
"The group also believes outdated and flawed traffic data are being used make the case for the project."
[Plus contracts and kickbacks from #PikeIndustries and other vendors]
#SaveRedBrook #SaveSmilingHillFarm #GorhamConnector #GorhamBypass
#Maine #RapidTransit #LightRail #SaveTheFarms #SaveTheForest #Wildlife #LightRail -
Mastering Roundabout Rules: Essential Road Code Driving Guide
#Diagrams #drivingrules #Drivingtips #Roundabouts #TrafficSafety
https://blazetrends.com/mastering-roundabout-rules-essential-road-code-driving-guide/?fsp_sid=85552 -
@IndyStar_Unofficial Not too sure about these two-lane roundabouts. Don't they cause crashes when drivers need to switch lanes?
-
Here's an article in The Indianapolis Star about my book, "Mindfucking Roundabouts of Carmel, IN" https://www.indystar.com/story/news/local/hamilton-county/carmel/2022/12/27/carmel-author-dan-grossman-wrote-book-poetry-roundabouts/69610046007/ @therobburgessshow, #poetry, #roundabouts, #literature, #literary, #indianapolis, #CarmelIndiana
https://www.lulu.com/shop/dan-grossman/mindfucking-roundabouts-of-carmel-indiana/paperback/product-pq6vp5.html?page=1&pageSize=4 -
"Roundabout" is a song by the English #progressiveRock band #Yes from their fourth studio album #Fragile, released in November 1971. It was written by singer #JonAnderson and guitarist #SteveHowe and produced by the band and #EddyOfford. The song originated when the band were on tour and travelled from #Aberdeen to #Glasgow, and went through many #roundabouts on the way. The song was released as an edited single in the US in January 1972 with "#LongDistanceRunaround".
https://www.youtube.com/watch?v=kmZoQFYYx8U -
Have to agree that replacing the space hogging cloverleaf with a simpler design makes a lot of sense. Same logic could likely be applied to many similarly stupid original designs.
-
Have to agree that replacing the space hogging cloverleaf with a simpler design makes a lot of sense. Same logic could likely be applied to many similarly stupid original designs.