Roundabouts Database Index

29361 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
Milwaukee, WI Milwaukee Co. United States	E Reservoir Ave. / N Hubbard St. (43.05516, -87.90840)	Traffic Calming Circle Existing	Uncontrolled None	4 Approaches 0 Driveways 19.2024	Other (At-Grade) Single-Lane		Installed before March 2000.
Davidsonville, MD Prince George's Co. United States	Town Center Blvd. / Emerald Way (38.94399, -76.73410)	Other Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Inside shopping center. No splitter islands on east and west legs.
Milwaukee, WI Milwaukee Co. United States	E Brown St. / N Hubbard St. (43.05646, -87.90838)	Traffic Calming Circle Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Milwaukee, WI Milwaukee Co. United States	N Hubbard St. / E Reservoir St. (43.05517, -87.90840)	Traffic Calming Circle Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Midtown, WI Milwaukee Co. United States	N 21st St. / W Barbee St. (43.05404, -87.93893)	Other Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Pedestrian access to central island.
Loganville, GA Walton Co. United States	Twin Lakes Rd. / (unknown) (33.82555, -83.88011)	Other Existing	Uncontrolled None	3 Approaches 1 Driveways 38.1000	Other (At-Grade) Single-Lane	2017
Seattle, WA King Co. United States	S Atlantic St. / Sturgus Ave. S (47.59000, -122.31165)	Traffic Calming Circle Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Greenfield, IN Hancock Co. United States	N Manchester Dr. / N Winchester Dr. / N Village Greene Dr. (39.79872, -85.95045)	Other Existing	Uncontrolled None	3 Approaches 3 Driveways 0.0000	Other (At-Grade) Single-Lane		Pedestrian access to central island.
Desert Sunset, AZ Maricopa Co. United States	(Glendale Heroes Regional Park road) / (parking) (33.52624, -112.23562)	Other Existing	Uncontrolled None	3 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2008	No truck apron or splitter islands other than painted pavement. No yield control on entry or circulating.
Maricopa, AZ Pinal Co. United States	W Marion May Ln. (33.05054, -112.00216)	Traffic Calming Circle Existing	Uncontrolled None	2 Approaches 0 Driveways 27.4317	Other (At-Grade) Single-Lane	2007	No splitter islands.
Maricopa, AZ Pinal Co. United States	W Dennis Ln. (33.04972, -112.00217)	Traffic Calming Circle Existing	Uncontrolled None	2 Approaches 0 Driveways 27.4317	Other (At-Grade) Single-Lane	2007	No splitter islands.
Conway, AR Faulkner Co. United States	Sugar Creek Dr. (35.06249, -92.45687)	Traffic Calming Circle Existing	Uncontrolled Unknown	2 Approaches 3 Driveways 0.0000	Other (At-Grade) Single-Lane
Medford, OR Jackson Co. United States	E Main St. / E 8th St. (42.32781, -122.86861)	Other Existing	Uncontrolled None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Bicycle-only circular intersection.
Davis, CA Yolo Co. United States	Engineering Bikeway / (unknown) (38.53777, -121.75421)	Other Existing	Uncontrolled Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Open to bicycles and pedestrians only.
Davis, CA Yolo Co. United States	Tercero Hall Cir. / Bioletti Way (38.53743, -121.75582)	Other Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island		Oval shaped. Painted and marked central and splitter islands.
Davis, CA Yolo Co. United States	Bioletti Way / Bainer Hall Dr. (38.53608, -121.75682)	Other Existing	Uncontrolled Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island		Painted and marked central and splitter islands.
Davis, CA Yolo Co. United States	Bainer Hall Dr. / (unknown) (38.53655, -121.75405)	Other Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island		Painted splitter islands.
Louisville, KY Jefferson Co. United States	James Thornton Way / Wickham Green Way (38.27422, -85.49318)	Other Existing	Uncontrolled None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2009	No splitter island on west leg. Concentric striped circulatory roadway.
Bradenton, FL Manatee Co. United States	Polo Trl. (27.42526, -82.36020)	Other Existing	Uncontrolled None	2 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2018
Saint Lucie West, FL St. Lucie Co. United States	SW Gingerline Dr. / (unknown) (27.23283, -80.42708)	Other Existing	Uncontrolled Unknown	3 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2019
Saint Lucie West, FL St. Lucie Co. United States	SW Gingerline Dr. / SW Sephia Dr. (27.23169, -80.42154)	Other Existing	Uncontrolled Unknown	3 Approaches 0 Driveways 35.9664	Other (At-Grade) Single-Lane	2018
Saint Lucie West, FL St. Lucie Co. United States	Champions Way / (unknown) (27.30724, -80.42218)	Other Existing	Uncontrolled None	3 Approaches 0 Driveways 31.0896	Other (At-Grade) Single-Lane	1999
Dawsonville, GA Forsyth Co. United States	Serenity Park Dr. / Placid Way / Serene Way / Peaceful Path (34.32854, -84.07263)	Other Existing	Uncontrolled None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2017
Twin Rivers, FL Manatee Co. United States	Twin Rivers Trl. / 15th St. E (27.52359, -82.39426)	Other Existing	Uncontrolled None	3 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2020
Fort Riley, KS Riley Co. United States	Trooper Dr. / Apennines Dr. (39.10394, -96.81859)	Other Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Multilane (2 Lane, 2x1 max)
Fort Riley, KS Riley Co. United States	Normandy Dr. / Estes Rd. (39.11209, -96.81585)	Other Existing	Uncontrolled Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Raindrop shaped.
Fort Riley, KS Riley Co. United States	1st Division Rd. / Trooper Dr. (39.10684, -96.79804)	Rotary Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 76.2000	Other (At-Grade) Single-Lane
Muncie, IN Delaware Co. United States	Heron Pointe Pkwy. / Bridle Wood Trl. / Lakeshore Dr. (40.23810, -85.45343)	Other Existing	Uncontrolled None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Las Vegas, NV Clark Co. United States	Lake South / Crystal Water Way (36.13289, -115.29050)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 25.0796	Other (At-Grade) Single-Lane	1994	Completed August 1994. Functional Class: Collector ICD estimated from Google Maps linework.
Short Pump, VA Goochland Co. United States	Capitol One Dr. / (unknown) (37.62693, -77.66927)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 37.8365	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Addison, TX Dallas Co. United States	Addison Cir. / Quorum Dr. (32.96138, -96.82592)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 54.8640	Other (At-Grade) Multilane (2 Lane, unspecified)	1997	.
Durango, CO La Plata Co. United States	Jenkins Ranch Rd. / Lizard Head (south) (37.28605, -107.84710)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 24.7061	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Durango, CO La Plata Co. United States	Jenkins Ranch Rd. / Lizard Head (north) (37.28920, -107.84310)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 27.5556	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Portland, OR Multnomah Co. United States	SE Ladd Circle (45.50850, -122.64940)	Other Existing	Unknown None	0 Approaches 0 Driveways 92.0689	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Durango, CO La Plata Co. United States	Jenkins Ranch Rd. / Ophir Dr. (37.28321, -107.85120)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 26.6075	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Durango, CO La Plata Co. United States	Jenkins Ranch Rd. / Kennebec Dr. (37.29216, -107.84010)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 23.7539	Other (At-Grade) Single-Lane	2003	ICD estimated from Google Maps linework.
Pearl, MS Rankin Co. United States	MS 475 (Airport Rd.) / Old Brandon Rd. (32.29057, -90.07133)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 34.3273	Other (At-Grade) Single-Lane	1997	Use of paint to achieve (?) deflection. ICD estimated from Google Maps linework.
Columbia, MD Howard Co. United States	Banneker Rd. / Cul-de-sac (39.21141, -76.87041)	Traffic Calming Circle Existing	Unknown Unknown	3 Approaches 0 Driveways 17.5824	Other (At-Grade) Single-Lane		Functional Class: Local ICD estimated from Google Maps linework.
Southampton, NJ Burlington Co. United States	US 206 / NJ 70 (Red Lion Circle) (39.88715, -74.74104)	Rotary Existing	Unknown Unknown	4 Approaches 0 Driveways 136.5464	Other (At-Grade) Single-Lane		Traffic circle conversion Functional Class: Arterial ICD estimated from Google Maps linework.
Port St. Lucie, FL St. Lucie Co. United States	SE Westmoreland Blvd. / Pine Valley St. (27.25530, -80.30157)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 72.1975	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Scottsdale, AZ Maricopa Co. United States	E. Via Linda / E. San Pablo Dr. (33.56833, -111.89350)	Traffic Calming Circle Existing	Unknown Unknown	3 Approaches 0 Driveways 49.7573	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Scottsdale, AZ Maricopa Co. United States	E. Via Linda / N. 87th St. (33.56715, -111.89500)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 69.6612	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Scottsdale, AZ Maricopa Co. United States	E. Via Linda / E. San Rafael Dr. (33.56711, -111.89565)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 18.2880	Other (At-Grade) Single-Lane		ICD estimated from Google Earth.
Arcata, CA Humboldt Co. United States	12th St. / I St. (40.87160, -124.08700)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 48.7687	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Arcata, CA Humboldt Co. United States	13th St. / J St. (40.87260, -124.08780)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 11.7404	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Scottsdale, AZ Maricopa Co. United States	E. Via Linda / N. 84th St. (33.56832, -111.89880)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 37.8156	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Scottsdale, AZ Maricopa Co. United States	E. Via Linda / N. 83rd Pl. (33.56770, -111.90100)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 63.6899	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Scottsdale, AZ Maricopa Co. United States	N. Marshall Way / E. Main St. (33.49311, -111.92830)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 22.9083	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	61st Ave. S / S Norfolk St. (47.51337, -122.25705)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2006
Seattle, WA King Co. United States	34th Ave. SW / SW Henderson St. (47.52286, -122.37530)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 42.7458	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Litchfield Park, AZ Maricopa Co. United States	W. Palmilla Blvd. / W. Alvarado Dr. (33.46978, -112.35190)	Traffic Calming Circle Existing	Unknown None	4 Approaches 0 Driveways 23.9107	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Litchfield Park, AZ Maricopa Co. United States	Wigwam Creek Blvd. / N. Rattler Way (33.51643, -112.32870)	Traffic Calming Circle Existing	Unknown Unknown	4 Approaches 0 Driveways 16.9277	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	Linden Ave. N / N. 42nd St. (47.65774, -122.34850)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 56.3115	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	44th Ave. SW / SW College St. (47.58301, -122.38780)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 37.0576	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	30th Ave. SW / SW Cloverdale St. (47.52648, -122.37120)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 64.5176	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	42nd Ave. SW / SW Hinds St. (47.57318, -122.38570)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 9.6690	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Coral Gables, FL Miami-Dade Co. United States	Sunset Rd (SW 72nd St) / LeJeune Rd (SW 42nd Ave) / Cocoplum Rd / Old Cutler Rd (25.70536, -80.26083)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 71.0248	Other (At-Grade) Single-Lane		Entering traffic yields to circling traffic Functional Class: Collector ICD estimated from Google Maps linework.
Phoenix, AZ Maricopa Co. United States	E. Cotton Center Blvd. / S. 44th Pl. (33.40279, -111.98790)	Other Existing	Unknown Unknown	0 Approaches 0 Driveways 163.5163	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	ICD estimated from Google Maps linework.
Crozet, VA Ablemarle Co. United States	Old Trail Dr. / (unknown #2) (38.05907, -78.71125)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 30.0923	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	17th Ave. E. / E. Spring St. (47.61153, -122.31020)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 5.6361	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Crozet, VA Ablemarle Co. United States	Old Trail Dr. / Golf Dr. (38.05766, -78.71016)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 30.0929	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	40th Ave. SW / SW Manning St. (47.57122, -122.38250)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 7.2520	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	28th Ave. NE / NE Hiram Pl. / NE 120th St. (47.71572, -122.29810)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 164.7289	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	24th Ave. S / S. Dearborn St. (47.59557, -122.30120)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 13.6919	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Chesterfield, MO St. Louis Co. United States	Schoettler Valley Dr. / Highcroft Dr. (38.64415, -90.55331)	Other Removed	Unknown Unknown	4 Approaches 0 Driveways 17.7235	Other (At-Grade) Single-Lane	1999	Temporary roundabout installed in Fall 1999. Removed September 25, 2000 due to negative public opinion. Intersection returned to AWSC. Functional Class: Local ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	26th Ave. S / S. Dearborn St. (47.59555, -122.29880)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 48.3244	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Fort Worth, TX Tarrant Co. United States	Bluebonnet Circle [W Biddson St. / Park Ridge Blvd. / S University Dr.] (32.69902, -97.36044)	Other Existing	Unknown Unknown	6 Approaches 0 Driveways 141.7320	Other (At-Grade) Multilane (2 Lane, unspecified)	1929	.
Buffalo, NY Erie Co. United States	Gates Circle (Delaware Ave. / Lafayette Ave.) (42.92054, -78.86776)	Other Existing	Unknown Unknown	5 Approaches 0 Driveways 66.4699	Other (At-Grade) Unknown	2002	Modified in 2002 to incorporate roundabout principles. ICD estimated from Google Maps linework. 21442
Orange, CA Orange Co. United States	Chapman Ave. / Glassell St. (33.78788, -117.85310)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 70.4752	Other (At-Grade) Single-Lane		Old school traffic circle, pedestrian park in the middle, cars park along the sides. ICD estimated from Google Maps linework.
Park City, UT Summit Co. United States	Rte 224 (Deer Valley Drive) / Heber Avenue / Marsac Avenue (40.64572, -111.49500)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 46.2161	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	See: www.Roundaboutsusa.com Information as reported in Salt Lake Tribune article: http://www.sltrib.com/2000/Sep/09142000/utah/22072.htm Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Ridgeland, MS Madison Co. United States	Old Agency Rd / Highland Colony Pkwy (32.43125, -90.14893)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 47.3786	Other (At-Grade) Multilane (2 Lane, unspecified)	2004	Planned in association with interchange improvements at I-55/Old Agency Rd. Functional Class: Collector ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	26th Ave. S / S. Judkins St. (47.59209, -122.29900)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 20.9420	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	24th Ave. S / S. Norman St. (47.59301, -122.30120)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 41.0778	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Phoenix, AZ Maricopa Co. United States	South 20th Drive. / (none) (33.37556, -112.10290)	Traffic Calming Circle Existing	Unknown Unknown	2 Approaches 0 Driveways 16.9552	Other (At-Grade) Single-Lane	2003	Neighborhood traffic calming. ICD estimated from Google Maps linework.
Henderson (Seven Hills), NV Clark Co. United States	Grand Hills Dr. / Rio Secoo Golf Club (35.97713, -115.11100)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 74.4214	Other (At-Grade) Single-Lane	1998	Functional Class: Collector ICD estimated from Google Maps linework.
Gordonsville, VA Orange Co. United States	James Madison Hwy / N. Main St. / Spotswood Trl. (38.14261, -78.18947)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 31.9366	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Provo, UT Utah Co. United States	550 West / 1950 North (40.26043, -111.66600)	Other Existing	Unknown Unknown	5 Approaches 0 Driveways 21.8738	Other (At-Grade) Single-Lane		Within parking lot; not fully developed as roundabout. Functional Class: Local ICD estimated from Google Maps linework.
Orem, UT Utah Co. United States	S 800 W / College Dr. / Sandhill Rd. (UVSC South Entrance) (40.27592, -111.71290)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 36.4480	Other (At-Grade) Multilane (2 Lane, unspecified)	1996	ICD estimated from Google Maps linework.
Nashville, TN Davidson Co. United States	Demonbreun St. / 16th Ave. / Division St. / Music Square E. (36.15210, -86.79163)	Other Existing	Unknown Unknown	0 Approaches 0 Driveways 54.0044	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	29th Ave. S / S. Judkins St. (47.59217, -122.29550)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 12.8873	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	31st Ave. E / E. Denny St. (47.62016, -122.29230)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 64.4023	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Rosemont, MD Frederick Co. United States	MD 17 / MD 180 (39.33768, -77.63950)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 30.4828	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	Densmore Ave. N / N 137th St. (47.72867, -122.33830)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 16.8705	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	N Saddle Creek Rd. / Country Club Ave. / Seward St. / 50th St. / Happy Hollow Rd. (41.27431, -95.99039)	Roundabout Existing	Unknown Unknown	8 Approaches 0 Driveways 28.7235	Other (At-Grade) Single-Lane	2003	Dogbone/peanut shape. ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	2nd Ave. NE / NE 91st St. (47.69499, -122.32710)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 8.0388	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Town and Country, MO St. Louis Co. United States	MO 141 SB Ramps / Woods Mill Rd. (38.63523, -90.51449)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 38.2503	Other (At-Grade) Single-Lane	2002	Previously controlled by one-way stop ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	Linden Ave. N / N. 36th St. (47.65116, -122.34860)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 35.4002	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	Woodlawn Ave. N / N. 36th St. (47.65051, -122.33870)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 12.8730	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	18th Ave. E. / E. Spring St. (47.61154, -122.30890)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 8.0516	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	4th Ave. N / N. Prospect St. (47.62890, -122.34880)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 10.4636	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Westfield, NJ Union Co. United States	NJ 28 / E. Broad St. (Westfield Circle) (40.64849, -74.35027)	Rotary Existing	Unknown Unknown	3 Approaches 0 Driveways 42.5896	Other (At-Grade) Multilane (2 Lane, unspecified)		Functional Class: Arterial ICD estimated from Google Maps linework.
Dumont / Cresskill, NJ Bergen Co. United States	Madison Ave. / Knickerbocker Rd. (Monument) (40.94127, -73.97681)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 74.8804	Other (At-Grade) Single-Lane		Completed May 30, 1924. Nearest traffic count was conducted on Knickerbocker Road (County Route 505) about 0.5 km from the intersection. http://tcs.state.nj.us/tmsweb/Report/h2d5c913_99_hrvolume.pdf Functional Class: Local ICD estimated from Google Maps linework.
Encinitas, CA San Diego Co. United States	Leucadia Blvd / Hymettus Ave (33.06470, -117.29620)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 21.0192	Other (At-Grade) Single-Lane	2004	Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Encinitas, CA San Diego Co. United States	Leucadia Blvd / Hermes Ave (33.06482, -117.30010)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 18.0164	Other (At-Grade) Single-Lane	2004	Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
London, ON Middlesex County Canada	Lambton Dr. / Oxford Dr. (43.00616, -81.27515)	Traffic Calming Circle Existing	Unknown Unknown	5 Approaches 0 Driveways 38.4291	Other (At-Grade) Single-Lane		Constructed sometime in the 1970s. Functional Class: Local ICD estimated from Google Maps linework.
Seward, NE Seward Co. United States	7th St. / 6th Ave. / 8th Ave. (40.91742, -97.10029)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 37.9050	Other (At-Grade) Single-Lane		Functional Class: Local ICD estimated from Google Maps linework.
Brookfield, IL Cook Co. United States	Grand Blvd. / Washington St. (41.82755, -87.85150)	Other Existing	Unknown Unknown	8 Approaches 0 Driveways 41.8281	Other (At-Grade) Single-Lane		I am a chauffuer in the Chicago area and I use this roundabout frequently when traveling from the West Suburbs to Midway Airport. Only real traffic is on Grand Blvd at this intersection but it is in a downtown shopping district in Brookfield (13 mi WSW of Functional Class: Local ICD estimated from Google Maps linework.
Seattle, WA King Co. United States	21st Ave. E / E. Republican St. (47.62320, -122.30470)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 5.6349	Other (At-Grade) Unknown	2006	ICD estimated from Google Maps linework.
Boulder, CO Boulder Co. United States	Evergreen Ave. / 9th St. (40.03106, -105.28560)	Traffic Calming Circle Existing	Unknown None	4 Approaches 0 Driveways 16.4609	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Boulder, CO Boulder Co. United States	Pearl St. / 4th St. (40.01571, -105.29050)	Traffic Calming Circle Existing	Unknown None	4 Approaches 0 Driveways 20.1234	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.