Roundabouts Database Index

29410 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
Anderson, SC Anderson Co. United States	Concord Rd. / Harris Bridge Rd. / Cathey Rd. (34.59397, -82.63681)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 34.4108	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Beaufort, SC Beaufort Co. United States	Joe Frazier Rd. / Pine Grove Rd. / Morrall Dr. (32.44977, -80.78268)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 31.2433	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Manning, SC Clarendon Co. United States	Raccoon Rd. / W Huggins St. / Silver Rd. (33.68728, -80.24358)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 33.7883	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Darlington, SC Darlington Co. United States	Lamar Hwy (US 401) / Hoffmeyer Rd. (34.25051, -79.95188)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 44.4246	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Murrells Inlet, SC Georgetown Co. United States	Old Kings Hwy / Wachesaw Rd. (33.55277, -79.05395)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 27.8691	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Greenville, SC Greenville Co. United States	Fork Shoals Rd. / Conestee Rd. (34.76950, -82.35879)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 39.2434	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Lexington, SC Lexington Co. United States	Nazareth Rd. / Longs Pond Rd. / Knotts Rd. (33.90082, -81.27835)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 31.7215	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Lexington, SC Lexington Co. United States	Laurel Rd. / Two Notch Rd. (33.96930, -81.17959)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 33.6770	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Lexington, SC Lexington Co. United States	Hwy 6 / Fish Hatchery Rd. (33.80767, -81.18882)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 43.6647	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Gaston, SC Lexington Co. United States	Meadowfield Rd. / Woodtrail Dr. / Woodcrest Ln. / Sharpes Hill Rd. (33.81626, -81.15706)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 47.6294	Other (At-Grade) Single-Lane	2016	Replaced two closely spaced stop-controlled intersections. ICD estimated from Google Maps linework.
Bennettsville, SC Marlboro Co. United States	Hamlet Hwy / Beauty Spot Rd E (34.65313, -79.69297)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 37.3337	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2015-2017). ICD estimated from Google Maps linework.
Seneca, SC Oconee Co. United States	Wells Hwy / Mormon Church Rd. / N Strawberry Farms Rd. (34.65761, -82.95173)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 20.6307	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Holly Hill, SC Orangeburg Co. United States	Branchdale Hwy / Camden Rd. (33.38775, -80.42287)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 31.9111	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Liberty, SC Pickens Co. United States	Moorefield Memorial Hwy (US 178) / Flat Rock Rd. / Five Forks Rd. / N Old Pendleton Rd. (34.76680, -82.65711)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 42.1880	Other (At-Grade) Single-Lane	2015	Replaced two closely spaced stop-controlled intersections. ICD estimated from Google Maps linework.
Sumter, SC Sumter Co. United States	Pinewood Rd. / Kolb Rd. (33.86858, -80.40494)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 36.6919	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Miller Farms, SC York Co. United States	Lincoln Rd. / Old Limestone Rd. (35.03978, -81.21612)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 34.2251	Other (At-Grade) Single-Lane	2012	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.
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.
London, ON Middlesex Canada	Trafalgar St. / Hale St. (42.98579, -81.19280)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.9471	Other (At-Grade) Single-Lane	2010	Built on a overpass above Canadian National Railway tracks. Replaced two T-intersections and an at-grade rail crossing. Named the Charley Fox Memorial Overpass and Roundabout ICD estimated from Google Maps linework.
Perth South, ON Perth Canada	Hwy 7 / Line 19 (43.24750, -81.08493)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 41.7576	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Perth South, ON Perth Canada	Road 119 / County Rd 9 (43.27026, -81.06800)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 43.4812	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Perth South, ON Perth Canada	Ontario Hwy 7 / Line 20 (43.30862, -81.03567)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5012	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Guelph, ON Wellington Canada	Ontario Hwy 7 / Jones Baseline (43.57942, -80.18623)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0122	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Sandy Springs, GA Fulton Co. United States	Northridge Rd. / Somerset Ct. (33.98218, -84.33988)	Other Existing	Other Unknown	3 Approaches 0 Driveways 23.7684	Other (At-Grade) Single-Lane	2015	Stop sign and no splitter island on side road (Somerset Ct) ICD estimated from Google Maps linework.
Roswell, GA Fulton Co. United States	Hardscrabble Rd. / Chaffin Rd. (34.06920, -84.37389)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2018	Currently striped as single-lane movement from east to west but designed for expansion to two lanes.
Scituate, MA Plymouth Co. United States	County Way / New Driftway / Main St. (Rte 123) / Chief Justice Cushing Hwy (Rte 3A) (42.17701, -70.75060)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 58.4157	Other (At-Grade) Single-Lane	2008	Pedestrian facilities, RTBPL ICD estimated from Google Maps linework.
North Falmouth, MA Barnstable Co. United States	N Falmouth Hwy (Rte 28A) / Quaker Rd. / Rockledge Dr. (41.63308, -70.61831)	Rotary Existing	Uncontrolled Unknown	4 Approaches 1 Driveways 65.1641	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Mashpee, MA Barnstable Co. United States	Nathan Ellis Hwy (Rte 151) / Falmouth Rd. (Rte 28) / Great Neck Road (41.61840, -70.48709)	Rotary Existing	All-Way Yield Unknown	4 Approaches 2 Driveways 108.0363	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Sandwich, MA Barnstable Co. United States	Harlow Rd. / Cotuit Rd. / S Sandwich Rd. (41.66884, -70.47018)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 24.9806	Other (At-Grade) Single-Lane	2013	no crosswalks ICD estimated from Google Maps linework.
Chatham, MA Barnstable Co. United States	Main St. (Rte 28) / Stage Harbor Rd. / Old Harbor Rd. (Rte 28) / Queen Anne Rd. (41.68267, -69.96167)	Other Existing	All-Way Yield None	5 Approaches 1 Driveways 0.0000	Other (At-Grade) Single-Lane		Pedestrian crossing within circulatory roadway.
East Harwich, MA Barnstable Co. United States	Queen Anne Rd. / Orleans-Harwich Rd. (Rte 39) (41.70049, -70.03164)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.8855	Other (At-Grade) Single-Lane	2006	no crosswalks, no sidewalks ICD estimated from Google Maps linework.
Hyannis, MA Barnstable Co. United States	Main St. / North St. / Scudder Ave. / W Main St. (41.64737, -70.29656)	Rotary Existing	Other None	4 Approaches 4 Driveways 56.2250	Other (At-Grade) Single-Lane		Yield control with stop control on North Street. ICD estimated from Google Maps linework.
South Yarmouth, MA Barnstable Co. United States	Wampanoag Rd. / Eldridge Rd. (41.64863, -70.21542)	Traffic Calming Circle Existing	Uncontrolled None	4 Approaches 0 Driveways 39.2675	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Dennis, MA Barnstable Co. United States	Davis Beach Rd. / Lighthouse Rd. / Loring Ave. (41.65225, -70.17300)	Rotary Existing	Uncontrolled None	4 Approaches 0 Driveways 40.1577	Other (At-Grade) Single-Lane		Stop control on the Davis Beach driveway ICD estimated from Google Maps linework.
Mashpee, MA Barnstable Co. United States	Rock Landing Rd. / Cross Rd. / Greensward Rd. (41.57286, -70.47406)	Traffic Calming Circle Existing	Other Unknown	4 Approaches 0 Driveways 55.3965	Other (At-Grade) Single-Lane		Private roads. Mixed Stop-controlled and free-merge. ICD estimated from Google Maps linework.
Mashpee, MA Barnstable Co. United States	Triton Sound Circle / Troon Way / Greenwards Rd. / Shore Dr. West / Landmark Ave. (41.56210, -70.47509)	Traffic Calming Circle Existing	All-Way Stop Unknown	5 Approaches 0 Driveways 57.1930	Other (At-Grade) Single-Lane		On private roads ICD estimated from Google Maps linework.
Hyannis, MA Barnstable Co. United States	Bearses Way / Basset Lane (41.65436, -70.29148)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.8786	Other (At-Grade) Single-Lane	2009	crosswalks on all approaches ICD estimated from Google Maps linework.
Braintree, MA Norfolk Co. United States	Union Street / Rte 3 (42.21028, -70.99659)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 65.4619	Freeway Ramps (Grade-Separated) Single-Lane		Braintree Rotary ICD estimated from Google Maps linework.
Research, VIC Australia	Main Rd. / Ingrams Rd. / Raglan Rd. (-37.70357, 145.18064)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 21.7335	Other (At-Grade) Single-Lane		Steep grade on Main Rd. through roundabout. ICD estimated from Google Maps linework.
Research, VIC Australia	Main Rd. / Research-Warrandyte Rd. (-37.70365, 145.17914)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 25.5132	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
East Hants, NS Hants Canada	Hwy 14 E / County 224 / Hwy 102 EB ramps (45.05516, -63.44175)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 40.4978	Freeway Ramps (Grade-Separated) Single-Lane	2008	Year Completed estimated (2005-2011). ICD estimated from Google Maps linework.
East Hants, NS Hants Canada	Hwy 14 / Hwy 102 SB (45.05648, -63.44497)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.0000	Freeway Ramps (Grade-Separated) Single-Lane	2008	Year Completed estimated (2005-2011).
McMinnville, OR Yamhill Co. United States	NW Hill Rd. / NW Baker Creek Rd. (45.22708, -123.22767)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.4877	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Dayton, OH Greene Co. United States	Swigart Road / James Madison Trail N (39.67417, -84.10436)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 31.2548	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Beavercreek, OH Greene Co. United States	Idea Cetner Blvd. / Product Way (39.71487, -84.10120)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 24.8054	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Beavercreek, OH Greene Co. United States	Park Overlook Dr. / Private Parking Lot (39.76489, -84.07360)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.1318	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Beavercreek, OH Greene Co. United States	Park Overlook Dr / Hibiscus Way (39.76605, -84.06898)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.6230	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Troy, OH Miami Co. United States	Main St. (Rte 41) / Market St. (Rte 55) (40.03961, -84.20333)	Other Existing	All-Way Yield Pedestrian Signal (red-yellow-green to drivers)	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Painted splitter islands. Right-turn-only lanes on all legs.
Fitchburg, MA Worcester Co. United States	Rindge Rd. / John Fitch Hwy / Mechanic St. (Rte 31) / Ashby State Rd. (Rte 31) (42.60170, -71.80156)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.8900	Other (At-Grade) Single-Lane	2010	RTYL ICD estimated from Google Maps linework.
Ayer, MA Middlesex Co. United States	Main St. (Rte 2A, Rte 111) / Sandy Pond Rd. / Littleton Rd. (Rte 2A, Rte 110) / Harvard Rd. (Rte 110, Rte 111) / Barnum Rd (42.55279, -71.57239)	Rotary Existing	Other None	5 Approaches 0 Driveways 118.7740	Other (At-Grade) Single-Lane		All-Yield Control expect for Barnum Rd (Stop-controlled) ICD estimated from Google Maps linework.
Freetown, MA Bristol Co. United States	Country Rd. / Chace Rd. / Mason Rd (41.77072, -70.95551)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.7393	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
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).
Gardner, MA Worcester Co. United States	Timpany Blvd (Rte 68) / Rte 2 (42.56665, -71.99296)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 140.7379	Freeway Ramps (Grade-Separated) Single-Lane		Crosswalks present ICD estimated from Google Maps linework.
Waterloo, ON Waterloo Canada	Labrador Dr / RIM Campus Ln (43.51601, -80.51332)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 24.2510	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Waterloo, ON Waterloo Canada	New Bedford Dr / Eastbridge Blvd / Shediac Crescent (43.51109, -80.50054)	Traffic Calming Circle Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 41.5765	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Waterloo, ON Waterloo Canada	Margaret Ave S / Union St E (43.46732, -80.49974)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 22.5369	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Waterloo, ON Waterloo Canada	Hagey Blvd. / Wes Graham Way (43.47997, -80.54992)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 80.0000	Other (At-Grade) Single-Lane	2003	Year Completed estimated (before 2005).
Waterloo, ON Waterloo Canada	Laurelwood Dr / James Downey Way (43.47541, -80.56870)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 41.6010	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Waterloo, ON Waterloo Canada	Laurelwood Dr / Beaver Creek Rd (43.47220, -80.57985)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 19.9349	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Waterloo, ON Waterloo Canada	Laurelwood Dr. / Blue Beach Blvd. (43.46997, -80.59517)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane	2003	Year Completed estimated (2001-2004).
Kitchener, ON Waterloo Canada	Grand Flats Trail / Eden Oak Trail (43.45085, -80.40324)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 29.4794	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Cambridge, ON Waterloo Canada	Horton Walk / Baldwin Dr. (43.44729, -80.30699)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.0000	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2009-2012).
Johns Creek, GA Fulton Co. United States	Boles Rd / Bell Rd (34.03935, -84.15603)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.5874	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Newport, KY Campbell Co. United States	W 4th St. / 3rd St. / 5th St. / Chestnut Way (39.08959, -84.49992)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 66.7434	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Sundre, AB Alberta Canada	Hwy 27 (Main Ave. W) / 2nd St. (51.79706, -114.64184)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2017	Temporary, modular installation.
Jackson, GA Butts Co. United States	GA 36 / Keys Ferry Rd. / Barnetts Bridge Rd. (33.38354, -83.90334)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	Initially installed in 2017 as a modular, rapid-install roundabout (ICD = 70 ft). Converted to single-lane roundabout with raised central island in 2022. https://www.jacksonprogress-argus.com/news/roundabout-replacement-at-hwy-36-and-barnetts-bridge-road-in-butts-county-begins-jan-31/article_58c8363c-806c-11ec-be5a-efce5e2209d4.html
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.
North Plymouth, MA Plymouth Co. United States	Water St. / South Park Ave. (41.96132, -70.66773)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.5310	Other (At-Grade) Single-Lane	2014	rotary conversion ICD estimated from Google Maps linework.
Toronto, ON Toronto Canada	Connaught Cir. / Claxton Blvd. (43.68917, -79.42497)	Other Existing	All-Way Stop Unknown	3 Approaches 0 Driveways 39.7263	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
South Fulton, GA Fulton Co. United States	Cascade-Palmetto Hwy (GA154) / Cedar Grove Rd / Ridge Rd (33.61907, -84.67141)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.7770	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Windsor, CA Sonoma Co. United States	Old Redwood Hwy / Market St (38.54956, -122.81353)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.5598	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Windsor, CA Sonoma Co. United States	Old Redwood Hwy / Windsor Rd (38.55271, -122.81661)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.7562	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Amesbury, MA Essex Co. United States	Friend St / School St (Rte 150) / Allens Ct (42.85615, -70.93410)	Roundabout Existing	Other None	4 Approaches 0 Driveways 26.2656	Other (At-Grade) Single-Lane	2001	North leg stop-controlled. Fire station on south leg. Resurfaced on 2017. ICD estimated from Google Maps linework.
Amesbury, MA Essex Co. United States	Market St (Rte 150) / Elm St / Main St (Rte 150) / High St (42.85794, -70.93010)	Traffic Calming Circle Existing	Other None	4 Approaches 0 Driveways 13.1324	Other (At-Grade) Single-Lane		On-Street parking in the traffic circle ICD estimated from Google Maps linework.
Gloucester, MA Essex Co. United States	Washington St / Middle St (42.61204, -70.66700)	Traffic Calming Circle Existing	Uncontrolled None	4 Approaches 0 Driveways 25.4902	Other (At-Grade) Single-Lane		Pavement markings done around 2013, on-street parking at traffic circle ICD estimated from Google Maps linework.
Georgetown, DE Sussex Co. United States	Zoar Rd. / Bethesda Rd. / Speedway Rd. (38.65384, -75.36140)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 41.9711	Other (At-Grade) Single-Lane	2017	Replaced two closely spaced TWSC intersections. ICD estimated from Google Maps linework.
Georgetown, DE Sussex Co. United States	The Circle (Georgetown Circle) (38.69005, -75.38587)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 66.1876	Other (At-Grade) Single-Lane	1791	New town built as county seat centered on circle instead of more traditional square. Pedestrian access to center island. Parking at buildings on the circle. No raised splitter islands. ICD estimated from Google Maps linework.
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.
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.
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.
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.
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.
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.
Bel Air South, MD Harford Co. United States	S Tollgate Rd. / Plumtree Rd. (39.50070, -76.33349)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 31.3332	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Bel Air South, MD Harford Co. United States	S Tollgate Rd. / W Ring Factory Rd. (39.50873, -76.34550)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 28.5652	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2007). ICD estimated from Google Maps linework.
Bel Air South, MD Harford Co. United States	Abingdon Rd. / Dunbarton Dr. / Box Hill S Pkwy. (39.47491, -76.30092)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 25.8134	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2007). ICD estimated from Google Maps linework.
Bel Air North, MD Harford Co. United States	Moores Mill Rd. / Southampton Rd. (39.54847, -76.33536)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.6279	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Pueblo, CO Pueblo Co. United States	N Purcell Rd. / E Platteville Blvd. (38.35647, -104.69429)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 33.7158	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Franklin Lakes, NJ Bergen Co. United States	Franklin Lake Rd. / High Mountain Rd. (40.99348, -74.21235)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.2409	Other (At-Grade) Single-Lane	2014	Upgraded from a neighborhood traffic circle in 2014 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.
Princeton, NJ Mercer Co. United States	Alexander St. / University Pl. (40.34305, -74.66085)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 30.0398	Other (At-Grade) Single-Lane	2014	Bike sharrows and parking cutouts on one leg. ICD estimated from Google Maps linework.
Princeton, NJ Mercer Co. United States	Elm Dr. / South Dr. (40.34078, -74.65595)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 1 Driveways 29.1305	Other (At-Grade) Single-Lane	2000	Year Completed estimated (1997-2002). ICD estimated from Google Maps linework.
Boston, MA Suffolk Co. United States	Northern Ave / Massport Haul Rd / Fid Kennedy Rd (42.34767, -71.03621)	Traffic Calming Circle Existing	Other None	4 Approaches 1 Driveways 24.7154	Other (At-Grade) Single-Lane		New pavement markings (roundabout like) on approaches in June 2017. Control Type: 2 yield (Northern Ave), 1 stop Massport Haul Rd and 1 uncontrolled (stop sign is missing?) (Fid Kennedy Ave). ICD estimated from Google Maps linework.
Boston, MA Suffolk Co. United States	Dominic J Bianculli Blvd / University Dr (42.31403, -71.04246)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 1 Driveways 37.0930	Other (At-Grade) Single-Lane	2018	This rotary seems to have been demolished in 2016 and converted to a roundabout in 2018. ICD estimated from Google Maps linework.
Brookline, MA Norfolk Co. United States	Chestnut St / Pond Ave (42.32283, -71.11966)	Rotary Existing	All-Way Yield None	3 Approaches 1 Driveways 36.2047	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Watertown, SD Codington Co. United States	US 81 (5th St.) / 20th Ave. SE (44.87638, -97.10890)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2018	First roundabout by South Dakota Department of Transportation.
Sioux Falls, SD Lincoln Co. United States	Louise Ave. / 271st St. (43.46078, -96.76732)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 44.2118	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Quincy, MA Norfolk Co. United States	Palmer St / Yardarm Ln / Bicknell St (42.25300, -70.96574)	Rotary Existing	Uncontrolled None	4 Approaches 2 Driveways 70.7217	Other (At-Grade) Single-Lane		Neighborhood area ICD estimated from Google Maps linework.
Forest Park, MO St. Louis City Co. United States	Hampton Ave. / Concourse Dr. / Wells Dr. (38.63316, -90.28546)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.7207	Other (At-Grade) Single-Lane	2009	Right-turn bypass lane merge in crosswalk area. ICD estimated from Google Maps linework.
Forest Park, MO St. Louis City Co. United States	Concourse Dr. / Washington Dr. (38.63495, -90.28480)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 23.3234	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.