Roundabouts Database Index

29679 Results

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City, State County Country	Intersection (Lat, Lng)	Type Status	Control Type / Other Control Type	Approaches / Driveways / ICD (m)	Functional Class / LaneType	Year Completed	Comments
Drummondville, QC Drummond Regional County Municipality Canada	Rue du Pont / Rue Montplaisir / Chemin Hemming / Boulevard Saint-Charles (45.88839, -72.48190)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4336	Other (At-Grade) Single-Lane	2013	https://translate.google.com/translate?hl=en&sl=fr&u=https://www.journalexpress.ca/2013/11/01/le-carrefour-giratoire-est-maintenant-ouvert/&prev=search ICD estimated from Google Maps linework.
Ellington, CT Tolland Co. United States	Windsorville Rd. / Wappington Rd. / Skinner Rd. / Pinney St. (41.86738, -72.49265)	Roundabout Existing	All-Way Yield None	5 Approaches 1 Driveways 40.9127	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
East Longmeadow, MA Hampden Co. United States	Center Square (Maple St. / Shaker Rd. / Prospect St. / Somers Rd. / Pleasant St. / Elm St. / N Main St.) (42.06482, -72.51288)	Other Existing	Other Unknown	7 Approaches 0 Driveways 31.0329	Other (At-Grade) Single-Lane		Seven way intersection. Mixture of stop signs and yield, including yields within the circle. Appeared in Ripley's Believe It or Not: https://www.thehotiron.com/index.php/site/comments/wisconsin_roundabouts_to_a_native_massachusetts_rotary_driver ICD estimated from Google Maps linework.
Amherst, MA Hampshire Co. United States	E Pleasant St / Triangle St (42.38156, -72.51932)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.3487	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Amherst, MA Hampshire Co. United States	Rte 116 (West St.) / Pomeroy Ln. / W Pomeroy Ln. (42.34000, -72.52016)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0040	Other (At-Grade) Single-Lane	2023	https://www.gazettenet.com/Amherst-road-projects-starting-Monday-50879230
Amherst, MA Hampshire Co. United States	Bay Rd / West St (Rte 116) (42.31938, -72.52627)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 51.2193	Other (At-Grade) Single-Lane	2011	Side-by-side roundabouts replacing two T-intersections ICD estimated from Google Maps linework.
Amherst, MA Hampshire Co. United States	Pleasant St / Governors Dr / Eastman Ln (42.39522, -72.52693)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.7529	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Amherst, MA Hampshire Co. United States	West St (Rte 116) / W Bay Rd (42.31886, -72.52762)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.9211	Other (At-Grade) Single-Lane	2011	Side-by-side roundabouts replacing two T-intersections ICD estimated from Google Maps linework.
Amherst, MA Hampshire Co. United States	University Dr. / Fearing St. / (parking) (42.38077, -72.53192)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 27.4317	Other (At-Grade) Single-lane w/ Traversable Central Island	2020	Serves University of Massachusetts Parking Lot 21.
Montpelier, VT Washington Co. United States	US 2 (E Montpelier Rd.) / US 302 (River St.) (44.24660, -72.54959)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 2 Driveways 35.0775	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Trois-Rivières, QC Trois-Rivieres Canada	Boulevard de la Commune / Rue Royale / Boulevard Gene-H-Kruger (46.33325, -72.55133)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways 89.8857	Other (At-Grade) Multilane (2 Lane, unspecified)		Park in central island. ICD estimated from Google Maps linework.
Madison, CT New Haven Co. United States	Hammonasset Connector / Hammonasset Point / Hammonasset State Park (41.26244, -72.55477)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 91.4400	Other (At-Grade) Multilane (3+ Lane)	1990
South Windsor, CT Hartford Co. United States	Hemlock Ave. / Evergreen Way (41.81417, -72.55495)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.3975	Other (At-Grade) Single-Lane	2004	Roundabout is part of The Shops at Evergreen Walk retail center. ICD estimated from Google Maps linework.
Brattleboro, VT Windham Co. United States	Rte 9 / Rte 5 (42.88500, -72.55670)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 51.8160	Other (At-Grade) Multilane (2 Lane, 2x2 max)	1999	Adjacent to I-89. Heavy truck volume (>7%).
Killingworth, CT Middledex Co. United States	Rte. 80 / Rte. 81 (41.35801, -72.56517)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	1997	First rotary modification in Connecticut. 21442
Longmeadow, MA Hampden Co. United States	E Greenwich Rd. / Normandy Rd. (42.06791, -72.56661)	Other Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Springfield, MA Hampden Co. United States	Walnut St. / Alden St. / Hancock St. / Ashley St. (42.10143, -72.56719)	Roundabout Existing	All-Way Yield None	6 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2020	https://www.wwlp.com/news/local-news/hampden-county/six-corners-roundabout-project-completed-more-than-a-year-later/
Trois-Rivières, QC Trois-Rivieres Canada	Boulevard Laviolette / Boulevard des Récollets (46.36018, -72.56988)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 80.7749	Other (At-Grade) Multilane (2 Lane, unspecified)	2005	Converted rotary. Initial conversion estimated (2003-2007). Striping refinements 2013-2016. ICD estimated from Google Maps linework.
Montpelier, VT Washington Co. United States	Keck Circle (Main St. / Spring St.) (44.26283, -72.57178)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.6594	Other (At-Grade) Single-Lane	1995	Main Street Middle School located one block NE of roundabout. ICD estimated from Google Maps linework.
Trois-Rivières, QC Trois-Rivieres Canada	Boulevard des Athlètes / Boulevard Arthur-Rousseau / Autoroute 55 SB Ramps (46.31702, -72.58442)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 55.2672	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2014	https://portailconstructo.com/actualites/trois_rivieres_chantier_boulevard_arthur_rousseau_est_marche ICD estimated from Google Maps linework.
Trois-Rivières, QC Trois-Rivieres Canada	Boulevard des Athlètes / (unknown) (46.31626, -72.58552)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.1709	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2014-2016). One leg stubbed. ICD estimated from Google Maps linework.
Trois-Rivières, QC Trois-Rivieres Canada	Rue de Vitrines / Rue des Grandes-Marchés (46.31941, -72.58703)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 47.0163	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2014-2016). ICD estimated from Google Maps linework.
Agawam, MA Hampden Co. United States	Rte 57 / US 5 Ramps / River Rd. (42.08087, -72.58983)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 165.7625	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		Rotary restriped 2012-2013. ICD estimated from Google Maps linework.
Morristown, VT Lamoille Co. United States	VT 100 / VT 15 / (shopping center parking) (44.57684, -72.59465)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2014
Quogue, NY Suffolk Co. United States	Post Ln. / Niamogue Ln. (40.81284, -72.59672)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 44.1960	Other (At-Grade) Single-Lane		Circle with roundabout features.
West Springfield, MA Hampden Co. United States	Rte 147 (Memorial Ave.) / US 5 Ramps (42.09762, -72.59717)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 37.2202	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		One of several along US 5. ICD estimated from Google Maps linework.
Springfield, MA Hampden Co. United States	Springfield St / Hamburg St / Rimmon Ave (42.13225, -72.60011)	Traffic Calming Circle Existing	Other None	4 Approaches 0 Driveways 27.4571	Other (At-Grade) Single-Lane		Hamburg St stop-controlled ICD estimated from Google Maps linework.
Glastonbury, CT Hartford Co. United States	Hebron Ave. / House St. (41.71357, -72.60121)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 27.6378	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
South Hadley, MA Hampshire Co. United States	US 202 (Purple Heart Dr.) / N Main St. (42.22171, -72.60281)	Rotary Existing	All-Way Yield None	5 Approaches 0 Driveways 292.6080	Other (At-Grade) Multilane (2 Lane, unspecified)		Oval shaped. ICD 960 ft x 640 ft.
Glastonbury, CT Hartford Co. United States	Hebron Ave. / New London Turnpike (41.71295, -72.60499)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 15.1564	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Hyde Park, VT Lamoille Co. United States	VT 15 / VT 100 / Church St. (44.59733, -72.61610)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.8677	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
West Springfield, MA Hampden Co. United States	Park St. / West St. / US 5 Ramps (42.10753, -72.61637)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 84.1755	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Northampton, MA Hampshire Co. United States	Rte 9 (Bridge St.) / Damon Rd. / I-91 NB Off-Ramp (42.33358, -72.62071)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2021	Year Completed estimated (2018-2021).
Greenfield, MA Franklin Co. United States	Rte 2 / Rte 2A / I-91 Ramps (42.58531, -72.62148)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 177.6285	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
West Springfield, MA Hampden Co. United States	Elm St. / Westfield St. / (parking) (42.10703, -72.62284)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2024	https://www.wwlp.com/news/local-news/hampden-county/final-phases-of-construction-of-the-new-elm-street-roundabout-in-west-springfield/
Northampton, MA Hampshire Co. United States	Pleasant St (US 5) / Conz St (42.31150, -72.62438)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 30.0288	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Windsor, CT Hartford Co. United States	Hayden Station Rd. / Lancaster Dr. / Center St. (41.89280, -72.63409)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.8935	Other (At-Grade) Single-Lane	1998	Functional Class: Collector. Year Completed estimated (1994-2003). ICD estimated from Google Maps linework.
Riverhead, NY Suffolk Co. United States	Quogue Riverhead Rd. / Old Riverhead Rd. (40.87822, -72.63782)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.7335	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Madison, CT New Haven Co. United States	Rte. 80 / Rte. 79 (41.35976, -72.63807)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 98.6077	Other (At-Grade) Single-Lane		Old traffic circle converted to yield on entry. ICD estimated from Google Maps linework.
Windsor, CT Hartford Co. United States	Hayden Station Rd. / Pond Rd. (41.89371, -72.64065)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 24.0041	Other (At-Grade) Single-Lane	1998	Functional Class: Collector. Year Completed estimated (1992-2003). ICD estimated from Google Maps linework.
Bromont, QC Brome-Missisquoi Regional County Municipality Canada	Rue Champlain / (parking lot) (45.30366, -72.64072)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.0417	Other (At-Grade) Single-Lane		Year Completed unknown (before 2006). ICD estimated from Google Maps linework.
Westhampton Beach, NY Suffolk Co. United States	Main St. / Mill Rd. / Library Ave. (40.81013, -72.64144)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2020	Library Ave is one-way exit to the south. Year Completed estimated (2019-2020). https://www.danspapers.com/2018/07/big-plans-for-whbs-main-street/
Bromont, QC Brome-Missisquoi Regional County Municipality Canada	Chemin Bergeron / Rte 10 WB Ramps (45.33627, -72.64198)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 39.4587	Freeway Ramps (Grade-Separated) Single-Lane	2009	Year Completed estimated (2009-2010). ICD estimated from Google Maps linework.
Southampton, NY Suffolk Co. United States	Collins Way / Roger's Way (40.84344, -72.64335)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.3684	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Westhampton Beach, NY Suffolk Co. United States	Potunk Ln. / Oak St. / School St. / Brook Rd. / Mill Rd. (40.81412, -72.64636)	Roundabout Existing	All-Way Yield None	6 Approaches 0 Driveways 39.7720	Other (At-Grade) Single-Lane	2006	Oval shape. ICD estimated from Google Maps linework.
Westhampton Beach, NY Suffolk Co. United States	Potunk Ln. / Main St. (40.80814, -72.64700)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2019	https://www.danspapers.com/2018/07/big-plans-for-whbs-main-street/
Bromont, QC Brome-Missisquoi Regional County Municipality Canada	Boulevard de Bromont / Chemin Bergeron / Chemin Saxby (45.33809, -72.64867)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.9389	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Easthampton, MA Hampshire Co. United States	Pleasant St. / Lovefield St. / Ferry St. (42.27616, -72.65722)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.9080	Other (At-Grade) Single-lane w/ Traversable Central Island	2020	https://www.wwlp.com/news/local-news/hampshire-county/ferry-street-in-easthampton-to-reopen-monday-with-new-traffic-pattern/
Riverhead, NY Suffolk Co. United States	Flanders Rd. (Rte. 24) / Peconic Ave. / Lake Ave. / Riverleigh Ave. (40.91461, -72.66277)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 58.6650	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	Converted from rotary to roundabout in 2018. https://riverheadlocal.com/2018/10/26/its-been-a-long-road-to-a-new-roundabout-in-riverside-but-its-officially-completed/. ICD estimated from Google Maps linework.
Riverhead, NY Suffolk Co. United States	Rte. 24 / (unknown) (40.91524, -72.66606)	Rotary Existing	Unknown Unknown	3 Approaches 0 Driveways 48.7366	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Riverhead, NY Suffolk Co. United States	Rte. 24 / CR 94 (40.91591, -72.66968)	Rotary Existing	Unknown Unknown	3 Approaches 0 Driveways 86.6419	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Shawinigan, QC Shawinigan Canada	Rte 155 / Chemin des Défricheurs (46.64104, -72.67348)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.9192	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Riverhead, NY Suffolk Co. United States	Rte. 58 / Roanoke Ave. (40.93315, -72.67399)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.7005	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	Was single-lane traffic circle. Redesigned, resigned, and restriped in 2009. ICD estimated from Google Maps linework.
Hartford, CT Hartford Co. United States	Pulaski Circle (41.76294, -72.67616)	Rotary Existing	Other Unknown	5 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)		Yield on circulatory roadway.
Northampton, MA Hampshire Co. United States	Main St (Rte 9) / Bridge Rd (42.34356, -72.68114)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.6618	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Hartford, CT Hartford Co. United States	Park Terrace / Sigourney St. / Russ St. (41.76207, -72.69289)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	https://www.tiktok.com/foryou?is_from_webapp=v1&item_id=7016286837643791622&lang=en#/@everydayengineering/video/7016286837643791622
Cowansville, QC Brome-Missisquoi Regional County Municipality Canada	Rte 104 (Boulevard Jean-Jacques-Bertrand) / Rte 241 (Rue Principale) (45.20232, -72.69436)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Unknown	2023	Year Completed estimated (2015-2024).
Riverhead, NY Suffolk Co. United States	Osborn Ave. / Middle Rd. / Horton Ave. (40.93469, -72.69623)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 54.8640	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2007-2008).
Windsor, CT Hartford Co. United States	Prospect Hill Rd. / Lang Rd. (41.89153, -72.69762)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 25.7830	Other (At-Grade) Single-Lane	1998	Located at entrance to industrial park. Year Completed estimated (1992-2004). ICD estimated from Google Maps linework.
Granby, QC La Haute-Yamaska Regional County Municipality Canada	Rue Bruce / Boulevard Pierre-Laporte (45.37287, -72.70142)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.2722	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Eastport, NY Suffolk Co. United States	Hamptons Court Dr W / Hamptons Court Dr. E (40.84068, -72.73421)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Guilford, CT New Haven Co. United States	US 1 (Boston Post Rd.) / Rte 22 (Notch Hill Rd.) (41.31131, -72.74547)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	At the town lines of Branford, North Branford and Guilford. https://www.zip06.com/news/20210617/new-route-1route-22-roundabout-taking-shape.
Westfield, MA Hampden Co. United States	Parker Ave. / Pochassic St. / Montgomery St. (42.13113, -72.74647)	Roundabout Existing	All-Way Yield None	4 Approaches 1 Driveways 30.4800	Other (At-Grade) Single-Lane	2008	stop-controlled traffic circle retrofit, near bridge
Shawinigan, QC Mauricie Region Canada	Rte 153 / Rte 157 / Avenue de la Station (46.54343, -72.75185)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2003	Opened December 2003. No splitter island on east leg.
Waterbury, VT Washington Co. United States	US 2 / VT 100 (44.34144, -72.75923)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.1459	Other (At-Grade) Single-Lane	2014	Completion year estimated. ICD estimated from Google Maps linework.
New Britain, CT Hartford Co. United States	Columbus Blvd. / Bank St. (41.66804, -72.77988)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 33.9026	Other (At-Grade) Single-Lane	2018	Previous control: Yield sign ICD estimated from Google Maps linework.
Farmington, CT Capitol United States	Two MIle Rd. / South Rd. / Colt Hwy. (41.72232, -72.78876)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2023	Right-turn-only lane on north leg aligned with circulatory roadway.
Farmington, CT Capitol United States	Dowling Way / (parking) (41.73355, -72.79165)	Other Existing	One-Way/Two-Way Stop None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island		Pedestrian crossing within circulatory roadway.
Farmington, CT Capitol United States	Main Rd. (UConn Health Blvd.) / Dowling Way / Discovery Dr. (41.73355, -72.79357)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2014	Year Completed estimated (2013-2014).
Granby, CT Hartford Co. United States	US 202 (Salmon Brook St.) / Notch Rd. / East St. (41.99540, -72.79684)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://granbydrummer.com/2020/08/roundabout-nearing-completion/
Jeffersonville, VT Lamoille Co. United States	VT 108 / VT 15 (44.64775, -72.82956)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 19.5430	Other (At-Grade) Single-Lane	2014	Completion year estimated. ICD estimated from Google Maps linework.
Shirley, NY Suffolk Co. United States	Fire Island Beach Rd. / William Floyd Pkwy. (40.73340, -72.86561)	Rotary Existing	Uncontrolled Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)
New Haven, CT New Haven Co. United States	Weybosset St. / Cranston St. (41.33172, -72.87223)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 20.4216	Other (At-Grade) Single-lane w/ Traversable Central Island	2018	Painted splitter islands.
Shirley, NY Suffolk Co. United States	Lockwood Dr. / (unknown) (40.82729, -72.87614)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 29.8231	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Yamachiche, QC Maskinongé Canada	Boulevard Saint Laurent E / Route Ste-Anne O / Route du Pays Brûlé (46.26235, -72.87783)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.1111	Other (At-Grade) Single-Lane	2000	Year Completed estimated (before 2005). ICD estimated from Google Maps linework.
New Haven, CT New Haven Co. United States	Quinnipiac Ave. / Ferry St. (41.30011, -72.89024)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 21.3357	Other (At-Grade) Single-lane w/ Traversable Central Island	2011
Ridge, NY Suffolk Co. United States	Princeton Ave. / York Ln. (40.86451, -72.89717)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 62.4840	Other (At-Grade) Multilane (2 Lane, unspecified)	2019	Year Completed estimated (2019-2020).
Puerto Montt, Los Lagos Llanquihue Province Chile	Rotonda Pichi Pelluco [Avenida Maratón / Calle Río / Lago Vidal Gormaz] (-41.47401, -72.91740)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Unknown
New Haven, CT New Haven Co. United States	Sea St. / Harbour Close (41.28259, -72.93206)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2019
Worthington, MA Hampshire Co. United States	Huntington Rd. / Buffington Hills Rd. / Old North Rd. / Williamsburg Rd. (42.41024, -72.93700)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2020	https://www.gazettenet.com/Worthington-Roundabout-38263037
New Haven, CT New Haven Co. United States	Crescent St. / Munson St. / Winthrop Ave. (41.32357, -72.94056)	Roundabout Existing	All-Way Yield None	4 Approaches 2 Driveways 35.0520	Other (At-Grade) Single-Lane	2020	Two-way cycle track along eastern side of Crescent St.
Middle Island, NY Suffolk Co. United States	Miller Place Yaphank Rd. / Whiskey Rd. (40.90476, -72.95687)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.4256	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
New Haven, CT New Haven Co. United States	Chapel St. / Yale Ave. (41.31448, -72.95891)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023	Peanut shaped. Replaces skewed intersection. https://www.fox61.com/video/news/local/new-haven-county/new-haven/first-of-its-kind-peanut-shaped-roundabout-opens-in-new-haven/520-3db77500-495f-4ae7-a441-ed85863cd327
Farnham, QC Brome-Missisquoi Regional County Municipality Canada	Rte 235 / Rte de Contournement (Farnham Bypass) / Boulevard Industriel (45.29856, -72.96165)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.0459	Other (At-Grade) Single-Lane	2014	https://translate.google.com/translate?hl=en&sl=fr&u=https://www.laveniretdesrivieres.com/2017/01/17/intersection-104-et-235-farnham-lance-lidee-dun-carrefour-giratoire ICD estimated from Google Maps linework.
St-Hyacinthe, QC Les Maskoutains Regional County Municipality Canada	Ave des Golfeurs / Rue du Tertre (45.59838, -72.96669)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0000	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2002-2009). Originally 3 approaches; 4th added 2011-2015 (streetview).
West Haven, CT New Haven Co. United States	Rte 162 (Jones Hill Rd.) / SR 705 (Ocean Avenue) (41.23624, -72.98605)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.8421	Other (At-Grade) Single-Lane	2007	Opened fall 2007. Connecticut DOT project. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Patchogue, NY Suffolk Co. United States	Holbrook Rd. / Lake St. (40.76695, -73.01946)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2020	Replaces triangle-shaped intersection with stop and yield control. https://www.suffolkcountynews.net/stories/lake-street-west-avenue-traffic-circle-to-open,86421
Patchogue, NY Suffolk Co. United States	Waverly Ave. / Holbrook Rd. (40.76705, -73.02555)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 27.1365	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Concepción, Bio-Bio Concepción Province Chile	Avenida Los Lleuques / Calle Rio Calle Calle / Avenida Siete Lagunas (-36.78509, -73.04292)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Concepción, Bio-Bio Concepción Province Chile	Rotonda Paicavi [Avenida Los Carrera / Avenida Paicavi] (-36.82008, -73.04424)	Signalized Roundabout/Circle Existing	Signal None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Hamburger shaped.
Concepción, Bio-Bio Concepción Province Chile	Calle Ramón Carrasco / Calle Nueva Dos / Calle C (-36.78087, -73.05193)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways	Other (At-Grade) Single-Lane
Manchester, VT Bennington Co. United States	Main St. / Bonnet St. (43.17692, -73.05688)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 17.4191	Other (At-Grade) Single-lane w/ Traversable Central Island	2013	ICD estimated from Google Maps linework.
Manchester, VT Bennington Co. United States	Main St. / Depot St. (43.17641, -73.05745)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 29.6128	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Concepción, Bio-Bio Concepción Province Chile	Rotonda Aeropuerto Carriel Sur [Avenida Jorge Alessandri Rodriguez / Avenida Jorge Alessandri / Camino al Aeropuerto Carriel Sur] (-36.77989, -73.05833)	Rotary Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Concentric circulatory roadway striping.
Manchester, VT Bennington Co. United States	Rte. 7A / Equinox (Grand Union) (43.17309, -73.06181)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.1304	Other (At-Grade) Single-Lane	1997	Roundabout is in a retail/outlet district in a resort area. VT 7-A is posted as a Historic Highway and is the local business route, while the parallel US 7 is a two-lane, limited access bypass that carries through truck traffic. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Saint-Armand, QC Brome-Missisquoi Regional County Municipality Canada	Rte 133 / Chemin Champlain / Chemin du Moulin (45.06420, -73.06729)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2023	https://www-mrcbm-qc-ca.translate.goog/actualites/nouvelle-configuration-du-carrefour-giratoire-a-saint-armand-a-proximite-de-la-future-autoroute-35?_x_tr_sl=fr&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=sc
St Albans, VT Franklin Co. United States	Industrial Park Rd. / Benoit Dr. (44.80056, -73.09987)	Other Existing	All-Way Yield None	4 Approaches 1 Driveways 86.4401	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Hualpén, Bio-Bio Concepción Province Chile	Carretera Nueva Cost / Avenida Gran Bretana (-36.80235, -73.10538)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		Concentric circulatory roadway striping.
Williston, VT Chittenden Co. United States	Maple Tree Pl. / Sycamore Dr. (44.44349, -73.10966)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.1697	Other (At-Grade) Single-Lane	2001	Completed November 2001. Major shopping area, road part of the planned ring road around Taft Corner. Functional Class: Local ICD estimated from Google Maps linework.
Adams, MA Berkshire Co. United States	Columbia St. (Rte 8) / Renfrew St. / Friend St. (42.63704, -73.11300)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.7517	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.