Roundabouts Database

29359 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
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.
Forest Park, MO
St. Louis City Co.
United States 		Government Dr. / Wells Dr.
(38.63437, -90.30113) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
44.7814 		Other (At-Grade)
Single-Lane 		2016 ICD estimated from Google Maps linework.
Aloha, OR
Washington Co.
United States 		SW 175th St. / SW Kemmer Rd.
(45.45121, -122.85724) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
39.3785 		Other (At-Grade)
Single-Lane 		2018 ICD estimated from Google Maps linework.
Bossier City, LA
Bossier Par.
United States 		W 1st St. / Spears St.
(32.52108, -93.73971) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
32.2256 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Bossier City, LA
Bossier Par.
United States 		W 1st St. / Margaritaville Way / Colquitt St.
(32.52193, -93.73982) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
30.2112 		Other (At-Grade)
Single-Lane 		2013 ICD estimated from Google Maps linework.
Weymouth, MA
Norfolk Co.
United States 		North St / East St / Norton St
(42.23165, -70.94496) 		Traffic Calming Circle
Existing 		Other
None 		4 Approaches
1 Driveways
25.6453 		Other (At-Grade)
Single-Lane 		Control Type is Mixed: Yield on circular road, stop on East St approach, yield on North St SB approach ICD estimated from Google Maps linework.
Somerset, MA
Bristol Co.
United States 		Brayton Ave / Riverside Ave / Wilbur Ave
(41.72272, -71.16043) 		Rotary
Existing 		Other
None 		4 Approaches
1 Driveways
33.8738 		Other (At-Grade)
Single-Lane 		Brayton approach is stop-controlled ICD estimated from Google Maps linework.
Toronto, ON
Toronto
Canada 		Port Union Rd. / Bridgend St.
(43.77682, -79.13549) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
31.0447 		Other (At-Grade)
Single-Lane 		2011 ICD estimated from Google Maps linework.
Markham, ON
York
Canada 		Swan Lake Blvd. / Lakeside Vista Way.
(43.89623, -79.25077) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
38.0000 		Other (At-Grade)
Single-Lane 		2001 Year Completed estimated (2000-2001).
Hasbrouck Heights, NJ
Bergen Co.
United States 		Passaic Ave. / Boulevard
(40.85798, -74.08175) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
54.1986 		Other (At-Grade)
Single-Lane 		Very narrow splitter islands. ICD estimated from Google Maps linework.
South Yarmouth, MA
Barnstable Co.
United States 		River St / Pleasant St
(41.65652, -70.19715) 		Traffic Calming Circle
Existing 		Uncontrolled
None 		3 Approaches
2 Driveways
36.5857 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Markham, ON
York
Canada 		Wilfred Murison Ave / William Berczy Blvd
(43.88681, -79.30799) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
40.4560 		Other (At-Grade)
Single-Lane 		2015 Previously a traffic circle ICD estimated from Google Maps linework.