Roundabouts Database Index

30321 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
Northfield Township, MI Washtenaw Co. United States	N Territorial Rd. / US 23 SB Ramps (42.37952, -83.75786)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 39.6240	Freeway Ramps (Grade-Separated) Single-Lane	2017	Merging right-turn bypass lane on west leg.
Northfield Township, MI Washtenaw Co. United States	N Territorial Rd. / US 23 NB Ramps (42.37969, -83.75634)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 39.6240	Freeway Ramps (Grade-Separated) Single-Lane	2017	Merging right-turn bypass lane on east leg.
Johnsburg, IL McHenry Co. United States	Johnsburg Rd. / St Johns Ave. / N Chapel Hill Rd. (42.38032, -88.24188)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5249	Other (At-Grade) Single-Lane	2014	Elliptical shape. Year Completed estimated (2013-2015). ICD estimated from Google Maps linework.
Grosse Pointe Park, MI Wayne Co. United States	Kercheval Ave. / Wayburn St. (42.38076, -82.94229)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 19.4090	Other (At-Grade) Single-Lane	2014	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.
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.
Waltham, MA Middlesex Co. United States	Beaver St. / Lyman St. (42.38402, -71.23042)	Roundabout Existing	All-Way Yield None	3 Approaches 2 Driveways 51.8160	Other (At-Grade) Single-Lane	2015	Unknown date of origin as traffic circle. Converted to roundabout 2015-2016.
Cambridge, MA Middlesex Co. United States	Grove St. / Washington St. / Blanchard Rd. (42.38637, -71.16042)	Roundabout Existing	All-Way Yield None	3 Approaches 3 Driveways 22.0537	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Cambridge, MA Middlesex Co. United States	Concord Ave / New St / Fresh Pond Pkwy (US 3, Rte 2) (42.38670, -71.14100)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 38.8144	Other (At-Grade) Multilane (2 Lane, unspecified)		Pavement markings for bike conflict areas added in approx. 2018 (on New St exit). ICD estimated from Google Maps linework.
East Boston, MA Suffolk Co. United States	Saratoga St / Boardman St / Ford St (42.38701, -71.00805)	Traffic Calming Circle Existing	Other None	4 Approaches 0 Driveways 25.5821	Other (At-Grade) Single-Lane		control type: Ford St and Boardman St all-way stop On-street parking on both sides. ICD estimated from Google Maps linework.
Cambridge, MA Middlesex Co. United States	Concord Ave (US 3) / Alewife Brook Parkway (Rte 2) (42.38844, -71.14346)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 56.4557	Other (At-Grade) Multilane (2 Lane, unspecified)		Pavement markings installed in 2017. No crosswalks. ICD estimated from Google Maps linework.
Hudson, MA Middlesex Co. United States	Washington St (Rte 85) / Central S / Main St (Rte 62) (42.39127, -71.56985)	Traffic Calming Circle Existing	All-Way Yield None	3 Approaches 0 Driveways 21.1699	Other (At-Grade) Single-Lane		On street parking in circulatory roadway ICD estimated from Google Maps linework.
Machesney Park, IL Winnebago Co. United States	Swanson Rd. / Perryville Rd. (42.39150, -88.99469)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.6369	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2007-2009). ICD estimated from Google Maps linework.
Belmont, MA Middlesex Co. United States	Orchard St / Stone St (42.39213, -71.16707)	Traffic Calming Circle Existing	Uncontrolled None	3 Approaches 6 Driveways 57.3345	Other (At-Grade) Single-Lane		No traffic signs nor pavement markings present. ICD estimated from Google Maps linework.
Berlin, MA Worcester Co. United States	Highland Commons W / (parking) (42.39291, -71.59613)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2013
Berlin, MA Worcester Co. United States	Highland Common W / (parking) (42.39423, -71.59916)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2013
Hudson, MA Middlesex Co. United States	Highland Commons E / (parking) (42.39465, -71.59473)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2010
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.
Northville, MI Wayne Co. United States	Johnson Creek Dr. / (park entrance) (42.39610, -83.51860)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2002-2005).
Somerville, MA Middlesex Co. United States	Great River Rd. / Grand Union Blvd. (42.39621, -71.08140)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.7524	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Lake Villa, IL Lake Co. United States	Cedar Lake Rd. / Monaville Rd. (42.39797, -88.09213)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.9254	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Lake Villa, IL Lake Co. United States	Monaville Rd. / N Fairfield Rd. (42.40096, -88.11041)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	https://www.lakecountyil.gov/3686/Fairfield-Rd
Somerville, MA Middlesex Co. United States	Powder House Square [Powder House Blvd. / Broadway / College Ave. / Werner St.] (42.40114, -71.11677)	Roundabout Existing	All-Way Yield None	6 Approaches 0 Driveways 70.1040	Other (At-Grade) Single-Lane	2021	Originally 2-lane traffic circle with signal control on all entries and central island originally accessible for pedestrians. Converted to a single-lane roundabout in 2021 using only signing, striping, and raised markers. As of March 2022, all signals (including pedestrian signals) have been covered.
Northville, MI Wayne Co. United States	Carriage Way / Glacier Rd. (42.40220, -83.53576)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2002-2005).
Everett, MA Middlesex Co. United States	Revere Beach Pkwy. (Rte 16) / Mystic View Rd. / Santilli Hwy (42.40238, -71.06892)	Signalized Roundabout/Circle Existing	Signal None	5 Approaches 0 Driveways 155.4480	Other (At-Grade) Multilane (3+ Lane)		Revere Beach Pkwy extends through the rotary. ICD 560 ft x 460 ft.
Boston, MA Suffolk Co. United States	Broadway / Main (42.40244, -71.06048)	Rotary Existing	Unknown Unknown	0 Approaches 0 Driveways 123.4694	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Belmont, MA Middlesex Co. United States	Prospect St / Clifton St (42.40403, -71.17635)	Traffic Calming Circle Existing	Other None	3 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-Lane		two yield-controlled, one stop-controlled approaches
Northville, MI Wayne Co. United States	Yellowstone Dr. / Johnson Creek Dr. (42.40412, -83.52414)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2005
Belmont, MA Middlesex Co. United States	Marsh St / Prospect St (42.40767, -71.18126)	Roundabout Existing	All-Way Yield None	3 Approaches 2 Driveways 45.7200	Other (At-Grade) Single-Lane		Year Completed unknown. No changes from original configuration.
Somerville, MA Middlesex Co. United States	Alewife Brook Pkwy (Rte 16) / Powder House Blvd (42.40871, -71.13069)	Rotary Existing	Other None	3 Approaches 6 Driveways 73.1924	Other (At-Grade) Multilane (2 Lane, unspecified)		Powder House Blvd left turn must yield to the SB entering traffic. ICD estimated from Google Maps linework.
Revere, MA Suffolk Co. United States	SR 60 / Beach St. (42.40913, -71.00166)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 81.1284	Other (At-Grade) Multilane (2 Lane, unspecified)		Through movement passes through center. Signalized. Functional Class: Arterial ICD estimated from Google Maps linework.
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
South Haven, MI Van Buren Co. United States	Wells St. / N Bailey Ave. (42.41050, -86.26416)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-lane w/ Traversable Central Island	2007	Painted splitter islands. Previously offset T-intersections. Year Completed estimated (2006-2007).
Boston, MA Suffolk Co. United States	VFW Pkwy. / North Shore Rd. (Butler Circle) (42.41228, -70.99350)	Rotary Existing	Unknown Unknown	0 Approaches 0 Driveways 84.6514	Other (At-Grade) Multilane (2 Lane, unspecified)		Functional Class: Arterial ICD estimated from Google Maps linework.
Salem, MI Washtenaw Co. United States	Pontiac Trl. / 7 Mile Rd. (42.41368, -83.64647)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2020	https://www.wcroads.org/wcrc-project/pontiac-trail-and-7-mile-road-roundabout/
Somerville, MA Middlesex Co. United States	Mystic Valley Pkwy. / Alewife Brook Pkwy. (42.41465, -71.13133)	Rotary Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 25.5708	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Stara Zagora, Stara Zagora Stara Zagora Bulgaria	ulitsa Dimcho Staev / ulitsa Anastasiya Tosheva / bulevard Slavyanski / ulitsa Georgi Baydanov (42.41817, 25.62058)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Stara Zagora, Stara Zagora Stara Zagora Bulgaria	ulitsa Bratya Zhekovi / ulitsa Anastasiya Tosheva / bulevard Slavyanski (42.41818, 25.62063)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Medford, MA Middlesex Co. United States	Salem St. (Rte 60) / I-93 Ramps (42.41946, -71.10398)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 149.8864	Freeway Ramps (Grade-Separated) Single-Lane		ICD estimated from Google Maps linework.
Podgorica, Montenegro	M2-E65-E80 (Zetskih vladara - Bulevar Georgija Žukova) / M18 (Vojislavljevica) / 4. Jul (42.42052, 19.25497)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Revere, MA Suffolk Co. United States	SR 60 / SR 107 (42.42123, -71.00449)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 92.5743	Other (At-Grade) Multilane (2 Lane, unspecified)		Functional Class: Arterial ICD estimated from Google Maps linework.
Medford, MA Middlesex Co. United States	Winthrop St. / High St. / Rural Ave. (42.42129, -71.11800)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 32.0040	Other (At-Grade) Single-Lane	2019	Painted splitter islands. Right-turn-only lanes on southwest and south legs. Converted from traffic circle in 2018-2019.
South Hill, NY Tompkins Co. United States	Alumni Cir. / Conservatory Dr. / Grant Egbert Blvd. (42.42153, -76.49961)	Other Existing	Other Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)		Stop control on circulatory roadway.
Old Mill Creek, IL Lake Co. United States	Hunt Club Rd. / Milburn Rd. / W. Simpson Rd. (42.42212, -87.97259)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.9640	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
White City, OR Jackson Co. United States	OR 140 / Atlantic Ave. / Foothill Rd. (42.42259, -122.81859)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2020	https://content.govdelivery.com/accounts/ORDOT/bulletins/2a5a500
South Haven, MI Allegan Co. United States	Blue Star Hwy. / N Shore Dr. (42.42646, -86.25553)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2011	Year Completed estimated (2006-2011).
Kinderhook, NY Columbia Co. United States	US 9 / Rte 9H / State Farm Rd. (42.42835, -73.68868)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 38.7886	Other (At-Grade) Single-Lane	2006	This was built to replace traffic lights when a shopping plaza was being added - US Route 9 has North and South, State Rt 9H South, State Farm Road (Town Road) and the entrance to the plaza, which makes it an unusual set up (5 Entries with 9 and 9H creating a Y shape, and then the plaza/state farm entries across from each other, going across the stem of the Y). ICD estimated from Google Maps linework.
Northfield Township, MI Washtenaw Co. United States	W 8 Mile Rd. / US 23 NB Ramps (42.42882, -83.76591)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.1000	Freeway Ramps (Grade-Separated) Single-Lane	2017
Wadsworth, IL Lake Co. United States	W Wadsworth Rd. / Dilleys Rd. (42.42897, -87.94581)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://www.youtube.com/watch?v=R7rA-rscA70
Northfield Township, MI Washtenaw Co. United States	W 8 Mile Rd. / US 23 SB Ramps (42.42923, -83.76779)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Freeway Ramps (Grade-Separated) Single-Lane	2017	Add-lane right-turn bypass lane on west leg.
Medford, MA Middlesex Co. United States	Fellsway W. / Forest St. / S Border Rd. / I-93 Ramps (42.42933, -71.10333)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 132.2319	Freeway Ramps (Grade-Separated) Unknown		ICD estimated from Google Maps linework.
Old Mill Creek, IL Lake Co. United States	Hunt Club Rd. / W. Wadsworth Rd. (42.42938, -87.97247)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.4326	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Northfield Township, MI Livingston Co. United States	W 8 Mile Rd. / Whitmore Lake Rd. (42.42944, -83.76903)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2017
Revere, MA Suffolk Co. United States	Copeland Circle [Rte 60 (Squire Rd.) / US 1 Ramps] (42.43008, -71.01710)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 381.0000	Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x2 max)		Retrofitted (November 2018) with multi-lane approaches/departures on the Route 1 ramps and roundabout style pavement markings and signs within the circulating roadway. ICD = 1250 ft x 880 ft. 21442
Ithaca, NY Tompkins Co. United States	Spencer St. / Elmira Rd. / Park St. / Albany St. (42.43167, -76.50152)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 34.3790	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Northville, MI Washtenaw Co. United States	Eight Mile Rd. / Currie Rd. (42.43382, -83.59039)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://www.rcocweb.org/529/Currie-Road-COMPLETE
Malden, MA Middlesex Co. United States	Fellsway E / Highland Ave (42.43419, -71.08356)	Traffic Calming Circle Existing	One-Way/Two-Way Stop None	4 Approaches 0 Driveways 24.6814	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Sioux City, IA Woodbury Co. United States	Old Lakeport Rd. / Southern Hills Dr. / Elk Creek Rd. / Christy Rd. (42.44046, -96.34126)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2024
Winchester, MA Middlesex Co. United States	Main St (Rte 38) / Everell Rd / Bacon St / Grove St (42.44236, -71.13586)	Traffic Calming Circle Existing	Other None	5 Approaches 0 Driveways 23.7968	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Medford, MA Middlesex Co. United States	Highland Ave. / Woodland Rd. / Elm St. (42.44247, -71.09392)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 53.3400	Other (At-Grade) Single-Lane	2015	Added roundabout style pavement markings on approaches and definition of circulating roadway in approx. 2015. Right-turn-only lane and two-lane exit on north leg.
Collegetown, NY Tompkins Co. United States	College Ave. / Oak Ave. (42.44258, -76.48522)	Unknown Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Year Completed estimated (2021-2022).
Northville, MI Oakland Co. United States	Taft Rd. / Morgan Blvd. (42.44300, -83.49355)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 23.7966	Other (At-Grade) Single-Lane	2009	Year Completed estimated (2007-2010). ICD estimated from Google Maps linework.
Peosta, IA Dubuque Co. United States	Peosta St / NICC Dr (42.44531, -90.84966)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 103.1146	Other (At-Grade) Single-Lane	2012	Entrance to Northeast Iowa Community College ICD estimated from Google Maps linework.
Podgorica, Montenegro	18. jula / 13. jula / Moskovska (42.44744, 19.25062)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
South Lyon, MI Oakland Co. United States	Nine Mile Rd. / Currie Rd. (42.44831, -83.59180)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	Opened November 21, 2022.
Saugus, MA Essex Co. United States	Lincoln Ave. / Essex St. / Jackson St. (42.44848, -71.00986)	Rotary Existing	All-Way Yield Unknown	4 Approaches 1 Driveways 36.5760	Other (At-Grade) Single-Lane		Parking along circulatory roadway.
Lexington, MA Middlesex Co. United States	Bedford St. / Harrington Rd. / Hancock St. (42.45014, -71.23048)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023	Replaced a triangle of two-way stop intersections. https://www.lexingtonma.gov/235/Battle-Green-Streetscape-Project Video of completed roundabout: https://www.youtube.com/watch?v=dcF64ln0mjo
Fredonia, NY Chautauqua Co. United States	US 20 (E Main St.) / Rte 60 (Bennett Rd. (42.45043, -79.30792)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2020	https://www.post-journal.com/news/latest-news/2020/12/major-construction-completed-on-roundabout/
Novi, MI Oakland Co. United States	W 9 Mile Rd. / Taft Rd. (42.45158, -83.49410)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://www.candgnews.com/news/novi-council-approves-lighting-for-new-roundabout-635
Winchester, MA Middlesex Co. United States	Main St / Mt Vernon St / Church St / Park St / Laraway Rd (42.45281, -71.13716)	Rotary Existing	Uncontrolled Pedestrian Signal (red-yellow-green to drivers)	5 Approaches 0 Driveways 47.5856	Other (At-Grade) Single-Lane		Improved ped crossings (markings) approx. 2001. Ped access to train station nearby. Bike racks. on-street parking on circular roadway. ICD estimated from Google Maps linework.
Sterling, MA Worcester Co. United States	Leominster Rd. (Rte 12) / Chocksett Rd. (42.45284, -71.74849)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 38.7735	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Bujanovac, Centralna Srbija Pčinja District Serbia	SR41 (Ulica Gnjilanski put - Ulica Karađorđa Petrovića) / Ulica Karađorđa Petrovića (42.45412, 21.76948)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways	Other (At-Grade) Single-Lane
Morningside, MA Berkshire Co. United States	Tyler St. / Woodlawn Ave. / Dalton Ave. (42.45643, -73.23392)	Roundabout Existing	Unknown Unknown	5 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown	2021	Year Completed estimated (2018-2022).
Lynn, MA Essex Co. United States	Lynn Way / Nahant Rd. (42.45684, -70.93676)	Rotary Existing	Unknown Unknown	3 Approaches 0 Driveways 124.2434	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Sterling, MA Worcester Co. United States	Leominster Rd. (Rte 12) / I-190 SB Ramps (42.46038, -71.74610)	Roundabout Existing	All-Way Yield Active Pedestrian Warning (flashing yellow)	3 Approaches 0 Driveways 41.4121	Freeway Ramps (Grade-Separated) Single-Lane	2018	RRFB ICD estimated from Google Maps linework.
Lynn, MA Essex Co. United States	Western Ave (Rte 107) / Federal St / South St / Market Square (42.46260, -70.96575)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 54.6268	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Lexington, MA Middlesex Co. United States	Hancock St. / Hamilton Rd. / Burlington St. / (unknown) (42.46302, -71.23268)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 23.7889	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Hamburg Township, MI Livingston Co. United States	Hamburg Rd. / Winans Lake Rd. (42.46351, -83.79812)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.0751	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2006-2010). ICD estimated from Google Maps linework.
Northville, MI Oakland Co. United States	Napier Rd. / W 10 Mile Rd. (42.46402, -83.55352)	Roundabout Existing	All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK)	4 Approaches 0 Driveways 38.7665	Other (At-Grade) Unknown	2017	ICD estimated from Google Maps linework.
Green Oak Township, MI Livingston Co. United States	Winans Lake Rd. / Rickett Rd. (42.46413, -83.76620)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://www.whmi.com/news/article/roundabout-rickett-winans
Saugus, MA Essex Co. United States	Main St / Central St / Hamilton St (42.46473, -71.01002)	Other Existing	Other None	4 Approaches 1 Driveways 37.8851	Other (At-Grade) Single-Lane		Town square traffic circle. Two legs are stop-controlled, on-street parking. ICD estimated from Google Maps linework.
Lynn, MA Essex Co. United States	Federal St. / Waterhill St. / Marion St. (42.46533, -70.96799)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	Four approaches, but five roads leading away. https://lynnjournal.com/2020/12/03/safe-and-round-new-roundabout-at-agganis-square-leads-to-safer-access-for-drivers/
Melrose, MA Middlesex Co. United States	Green St. / Howard S. (42.46562, -71.05908)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-Lane	2019	Replaced stop-controlled triangle set of intersections.
Green Oak Township, MI Livingston Co. United States	Whitmore Lake Rd. / Silver Lake Rd. / US 23 SB Ramps (42.46683, -83.75719)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 1 Driveways 0.0000	Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max)	2024
Green Oak Township, MI Livingston Co. United States	Silver Lake Rd. / US 23 NB Ramps / Fieldcrest Dr. (42.46717, -83.75473)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max)	2024	Combined a previous all-way stop and two-way stop into one roundabout. https://www.facebook.com/GreenOakPolice/videos/as-a-follow-up-to-our-previous-post-about-using-the-fieldcrest-roundabout-check-/988342009671510/
Concord, MA Middlesex Co. United States	Rte 2 (Union Tpke-Concord Tpke) / Rte 2A / Barretts Mill Rd. / Commonwealth Ave. (42.46728, -71.39721)	Rotary Existing	All-Way Yield None	5 Approaches 0 Driveways 100.4354	Other (At-Grade) Multilane (2 Lane, unspecified)		Infamous Concord rotary. ICD estimated from Google Maps linework.
Cedar Falls, IA Black Hawk Co. United States	W Ridgeway Ave. / Goldfinch Dr. (42.46945, -92.44998)	Roundabout Existing	All-Way Yield None	3 Approaches 2 Driveways 51.8160	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2019	Year Completed estimated (2018-2020).
Swampscott, MA Essex Co. United States	Monument Ave / Elmwood Rd (42.46952, -70.91737)	Traffic Calming Circle Existing	All-Way Stop None	4 Approaches 0 Driveways 35.2392	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Cedar Falls, IA Black Hawk Co. United States	W Ridgeway Ave / Chancellor Dr (42.47011, -92.45341)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 48.4535	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	ICD estimated from Google Maps linework.
Dubuque, IA Dubuque Co. United States	US 52 (SW Arterial - Seippel Rd.) / Chesterfield Dr. / US 20 EB ramps (42.47403, -90.75987)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2020	https://www.telegraphherald.com/news/tri-state/article_25dde05e-920f-5330-8d6f-356d16812f2d.html
Woburn, MA Middlesex Co. United States	Main St. / Common St. / Winn St. / Pleasant St. (42.47953, -71.15234)	Other Existing	Signal Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (3+ Lane)		Triangular shaped. City common in center island with crosswalks leading to it and walking paths within central island.
Southfield, MI Oakland Co. United States	Civic Center Dr. / Evergreen Rd. (42.48011, -83.24083)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 38.7566	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	ICD estimated from Google Maps linework.
Southfield, MI Oakland Co. United States	Evergreen Rd / (library and shopping center parking lots) (42.48345, -83.24100)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.9929	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	ICD estimated from Google Maps linework.
Dyersville, IA Delaware Co. United States	CR X49 (332nd Ave.) / W 1st Ave. / 210th St. (42.48441, -91.14450)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://www.dyersvillecommercial.com/news/new-roundabout-officially-open/image_90cf973c-23eb-59eb-9a68-62a9bf4de883.html
Cedar Falls, IA Black Hawk Co. United States	Brandilynn Blvd. / Prairie Pkwy. (42.48552, -92.43468)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.2763	Other (At-Grade) Single-Lane	2009	In new commercial development. Functional Class: Local ICD estimated from Google Maps linework.
Novi, MI Oakland Co. United States	Crescent Blvd. / Town Center Dr. (42.48561, -83.46982)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.5879	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2016-2017). ICD estimated from Google Maps linework.
Southfield, MI Oakland Co. United States	Franklin Rd. / W Eleven Mile Rd. (42.48636, -83.29104)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 59.4360	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2017	Year Completed estimated (2017-2018).
Burlington, MA Middlesex Co. United States	3rd Ave. / 2nd Ave. (42.48742, -71.22479)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-Lane	2013	Year Completed estimated (2010-2013).
Waterloo, IA Black Hawk Co. United States	W 9th St. / South St. (42.48850, -92.33818)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023	https://k923.fm/new-waterloo-roundabout-is-almost-complete-look/
Cedar Falls, IA Blackhawk Co. United States	Cedar Heights Dr. / Viking Rd. (42.48899, -92.41638)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 54.8640	Other (At-Grade) Single-Lane	2007	Right-turn-only lane on west leg. Intersection relocated from T-intersection to the south. Opened November 2007.