Roundabouts Database Index

29411 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
Alexandria, VA Alexandria City United States	Beverley Circle: Old Dominion Blvd. / Chalfonte Dr. (38.83602, -77.07233)	Other Existing	All-Way Stop Unknown	3 Approaches 2 Driveways 0.0000	Other (At-Grade) Single-Lane		Parking within circulatory roadway. No splitter islands.
Haymarket, VA Prince William Co. United States	Tournament Dr. / Golf View Dr. / Aviara View Ct. (38.83637, -77.63885)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2003-2005).
Loures, Lisbon Loures Portugal	Rua do Funchal / Rua Comandante Carvalho Araújo / (parking) (38.83691, -9.16907)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Upper Marlboro, MD Prince George's Co. United States	Rock Spring Dr. / (unknown) (38.83762, -76.84567)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 51.8160	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	Year Completed estimated (2018-2019).
Gilmore, MO St. Charles Co. United States	Pine Creek Dr. / Pine Creek Ct. (38.83970, -90.86642)	Other Existing	Uncontrolled Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Haymarket, VA Prince William Co. United States	Tournament Dr. / Arnold Palmer Dr. / Sawgrass Pl. (38.83984, -77.64018)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2004	Circle with roundabout features. Year Completed estimated (2002-2006).
Haymarket, VA Prince William Co. United States	Bowers Hill Dr. / Gaines Mill Cir. (38.83987, -77.63056)	Roundabout Existing	All-Way Yield Other	4 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2010	Constructed as circular intersection without splitter islands 2003-2005. Splitter islands added 2009-2011.
Overland Park, KS Johnson Co. United States	W 159th St. / Blue Valley High School west entrance (38.84002, -94.65839)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	3 Approaches 0 Driveways 42.6717	Other (At-Grade) Multilane (2 Lane, unspecified)	2016
Overland Park, KS Johnson Co. United States	W 159th St. / Blue Valley High School east entrance (38.84003, -94.65406)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	3 Approaches 0 Driveways 42.6717	Other (At-Grade) Multilane (2 Lane, unspecified)	2016
Overland Park, KS Johnson Co. United States	W 159th St. / S Pflumm Rd. (38.84016, -94.74243)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://twitter.com/opcares/status/1293961531567333377?lang=en
Overland Park, KS Johnson Co. United States	W 159th St. / Mission Rd. (38.84021, -94.63052)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Single-Lane	2017	Right-turn-only lane on west leg.
Upper Marlboro, MD Prince George's Co. United States	Presidential Golf Dr. / Pentland Hills Dr. (38.84025, -76.73519)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Loures, Lisbon Loures Portugal	N115 (Rua do Funchal) / A8 (Autoestrada do Oeste) NB Ramps (38.84092, -9.16388)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)
Forestville, MD Prince George's Co. United States	Donnell Pl. (38.84109, -76.88405)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Overland Park, KS Johnson Co. United States	157th St. / King St. (38.84201, -94.71545)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.9304	Other (At-Grade) Single-Lane	2007	Built for new development. ICD estimated from Google Maps linework.
Belton, MO Cass Co. United States	Loch Lloyd Pkwy. / Argyle Dr. (38.84299, -94.59884)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2015-2016).
Loures, Lisbon Loures Portugal	N115 (Rua do Funchal) / Avenida das Descobertas (38.84343, -9.16228)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Belton, MO Jackson Co. United States	E 155th St. / I-49-US 71 NB Ramps / E Frontage Rd. (38.84346, -94.52822)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 54.8640	Freeway Ramps (Grade-Separated) Single-Lane	2017	Part of diverging diamond interchange (DDI). Opened November-December 2017.
Fulton, MO Callaway Co. United States	Market St. / E 2nd St. (38.84446, -91.94722)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2011
Lincoln, CA Placer Co. United States	E Joiner Pkwy. / Fieldstone Dr. (38.84770, -121.28659)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.1960	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2022	Yield-controlled right-turn bypass lane on northwest leg. https://www.lincolnca.gov/en/our-government/east-joiner-parkway-widening-project.aspx
Upper Marlboro, MD Prince George's Co. United States	George Hilleary Terrace (38.84772, -76.74269)	Other Existing	Unknown Unknown	2 Approaches 2 Driveways 0.0000	Other (At-Grade) Single-Lane
Overland Park, KS Johnson Co. United States	Oakmont St. / W 154th Terrace (38.84835, -94.72889)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 16.1541	Other (At-Grade) Single-lane w/ Traversable Central Island	2020	Developer built as part of an approved plan south of this location that required traffic calming measures.
Temple Hills, MD Prince Georges Co. United States	MD 637 (Naylor Rd.) / Good Hope Ave. (38.84922, -76.95655)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.6248	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Upper Marlboro, MD Prince George's Co. United States	Beech Tree Pkwy. / Moores Plains Blvd. / (parking) (38.84933, -76.73622)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Temple Hills, MD Prince Georges Co. United States	MD 637 (Naylor Rd.) / Oxon Run Dr. (38.84986, -76.95789)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.4150	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Estremoz, Évora Estremoz Portugal	IP2-E802 / M504 / Rua Olival do Cavaco (38.85055, -7.58462)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Santa Iria de Azoia, Lisbon Loures Portugal	N10 (Caminho de Santiago-Caminho Português) / Rua Dom Afonso Albuquerque (38.85098, -9.07473)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Olathe, KS Johnson Co. United States	W 153rd St. / Olathe Medical Center Pkwy. (38.85100, -94.82983)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.4361	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	Year Completed estimated (2008-2010). ICD estimated from Google Maps linework.
Town of Meyers, CA El Dorado Co. United States	US 50 / SR 89 (38.85101, -120.02231)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 35.3445	Other (At-Grade) Single-Lane	2019	Completed Sept. 2019. WB US-50 may choose physically separated bypass lane. Site is on Caltrans live video map: http://cwwp2.dot.ca.gov/vm/iframemap.htm Zoom in on Lake Tahoe (center right portion of map). Choose second camera south of the lake (Meyers). ICD estimated from Google Maps linework.
Upper Marlboro, MD Prince George's Co. United States	Moores Plains Blvd. / Humberside Way (38.85198, -76.73522)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Flint Hill, MO St. Charles Co. United States	CR P / US 61 NB Ramps / Service Rd. (38.85292, -90.86827)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.6445	Freeway Ramps (Grade-Separated) Single-Lane	2018	Under construction (almost finished) Aug 2018 (streetview) ICD estimated from Google Maps linework.
Lincoln, CA Placer Co. United States	Catta Verdera / Ladera Dr. / Camino Verdera (38.85444, -121.24539)	Other Existing	All-Way Stop None	4 Approaches 0 Driveways 26.9721	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Upper Marlboro, MD Prince George's Co. United States	Moores Plains Blvd. / Copper Beach Dr. (38.85458, -76.73266)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Lees Summit, MO Jackson Co. United States	SW Arborwalk Blvd. / SW Arborwalk Dr. (38.85469, -94.40482)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.6224	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2004-2005). ICD estimated from Google Maps linework.
Forte da Casa, Lisbon Vila Franca de Xira Portugal	N10 (Caminho de Santiago-Caminho Português) / Avenida da Liberdade / Rua de Republica (38.85505, -9.07165)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Colorado Springs, CO El Paso Co. United States	Cedar Creek View / (parking lot) (38.85572, -104.72340)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.1815	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Upper Marlboro, MD Prince George's Co. United States	Moores Plains Blvd. / Bishopstone Terrace (38.85575, -76.73096)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Upper Marlboro, MD Prince George's Co. United States	Symondsbury Way / Galeshead Dr. (38.85587, -76.73628)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Lees Summit, MO Jackson Co. United States	SW Arborwalk Blvd. / SW Arboridge Dr. (38.85590, -94.41010)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.6918	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2004-2005). ICD estimated from Google Maps linework.
Upper Marlboro, MD Prince George's Co. United States	Nancy Gibbons Terrace (38.85592, -76.74356)	Other Existing	Unknown Unknown	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Lees Summit, MO Jackson Co. United States	SW Arborwalk Blvd. / SW Arborway Dr. (38.85615, -94.40007)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.4119	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2004-2005). ICD estimated from Google Maps linework.
Lees Summit, MO Jackson Co. United States	SW Arborway Dr. / SW Wysteria Dr. / SW Wysteria Terr. (38.85763, -94.39962)	Roundabout Existing	Unknown None	4 Approaches 0 Driveways 24.1808	Other (At-Grade) Single-Lane	2005	Minimal splitter islands on three legs; no splitter island on east leg. Year Completed estimated (2004-2005). ICD estimated from Google Maps linework.
Olathe, KS Johnson Co. United States	Garmin Way / (parking garage) (38.85794, -94.80139)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.0408	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Upper Marlboro, MD Prince George's Co. United States	Moores Plains Blvd. / Buxton Pl. (38.85826, -76.73014)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Fairfax, VA City of Fairfax United States	University Dr. / (parking) (38.86028, -77.30428)	Roundabout Existing	All-Way Yield None	2 Approaches 3 Driveways 27.4320	Other (At-Grade) Single-Lane	2022	https://www.youtube.com/watch?v=UwmJSdActdk
Leawood, KS Johnson Co. United States	Fairway St. / Norwood St. / Meadow Ln. / W 148th St. (38.86092, -94.61576)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2006).
Vialonga, Lisbon Vila Franca de Xira Portugal	M501-1 / N115-5 / Rua Principal / Rua Movimento das Forças Armadas (38.86304, -9.10309)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Capitol Heights, MD Prince George's Co. United States	Ritchie Station Ct. / (mall circulation road) (38.86528, -76.84986)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 41.1480	Other (At-Grade) Single-Lane	2011	Year Completed estimated (2010-2011).
Vialonga, Lisbon Vila Franca de Xira Portugal	N501-EM502 / Estr. de Alpiarte (38.86617, -9.09552)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Forte da Casa, Lisbon Vila Franca de Xira Portugal	N10 (Caminho de Santiago-Caminho Português) / Praceta dos Caniços / Rua dos Caniços / Rua Adriano Correia de Oliveira (38.86640, -9.05974)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Grandview, MO Jackson Co. United States	US 71 NB Frontage Road / I-49-US 71 NB Ramps (38.86704, -94.52594)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 54.8637	Freeway Ramps (Grade-Separated) Single-Lane	2022	https://www.grandview.org/government/city-departments/public-works/projects/i-49-outer-roads-conversion
Ritchie, MD Prince Georges Co. United States	Ritchie-Marlboro Rd. / I-95 NB Ramps (38.86824, -76.84158)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 67.0560	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)	2001	Opened initially with two lanes. Expanded from two lanes to three lanes in 2010. 21442
Ritchie, MD Prince Georges Co. United States	Ritchie-Marlboro Rd. / I-95 SB Ramps (38.86894, -76.84738)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 770.9968	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)	2001	Opening initially with two lanes. Expanded from two lanes to three lanes in 2010. 21442
Bedford, IN Lawrence Co. United States	John A Williams Blvd. / Lincoln Ave. (38.87002, -86.48896)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 34.4052	Other (At-Grade) Unknown	2018	ICD estimated from Google Maps linework.
Olathe, KS Johnson Co. United States	Sheridan Rd. / Clairborne Rd. (38.87020, -94.79250)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.3168	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Leawood, KS Johnson Co. United States	Juniper St. / W 142nd Terr. (38.87029, -94.64438)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.4752	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2006-2008). ICD estimated from Google Maps linework.
Columbia, MO Boone Co. United States	Rte K / S Sinclair Rd. / Old Plank Rd. (38.87078, -92.38241)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	https://abc17news.com/news/2021/08/18/sinclair-and-route-k-roundabout-now-open/
Overland Park, KS Johnson Co. United States	W. 141st St. / Bluejacket St. (38.87130, -94.71130)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.6150	Other (At-Grade) Single-Lane	2001	Functional Class: Local ICD estimated from Google Maps linework.
Capitol Heights, MD Prince George's Co. United States	Hampton Park Blvd. (38.87175, -76.85022)	Roundabout Existing	All-Way Yield Unknown	2 Approaches 0 Driveways 57.9120	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2007	Yield signs but no entrance line or yield lines.
Olathe, KS Johnson Co. United States	Sheridan Rd. / Rogers Rd. (38.87200, -94.79430)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.7027	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	ICD estimated from Google Maps linework.
Grandview, MO Jackson Co. United States	Lawnbale St. / E 139th St. (38.87251, -94.52865)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2007-2009).
Olathe, KS Johnson Co. United States	Sheridan Rd. / Ridgeview Rd. / Dennis Ave. (38.87270, -94.79730)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.3160	Other (At-Grade) Single-Lane	2001	Completed April 2001. ICD estimated from Google Maps linework.
Columbia, MO Boone Co. United States	Cascades Dr. / Marietta Falls Ln. / Vancouver Cir. (38.87294, -92.37750)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 25.1055	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Treeline View / Stately View (38.87351, -104.86560)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 38.1228	Other (At-Grade) Single-Lane	2003	ICD estimated from Google Maps linework.
Columbia, MO Boone Co. United States	New Town Ave. / Center St. (38.87357, -92.36947)	Traffic Calming Circle Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 18.5965	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Woodstock, VA Shenandoah Co. United States	Woodstock Commons Dr. / (future road) (38.87398, -78.52977)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 31.6138	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Oakton, VA Fairfax Co. United States	Saintsbury Dr. / (transit center parking garage) (38.87600, -77.27317)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2013	Serves Metro station. Right-turn-only lanes on northeast and southwest legs. Southeast leg stubbed. Year Completed estimated (2012-2014).
Vialonga, Lisbon Vila Franca de Xira Portugal	N501-EM502 / Rua dos Caniços (38.87617, -9.06925)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Oakton, VA Fairfax Co. United States	Saintsbury Dr. / (transit center parking lot) (38.87667, -77.26993)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2013	Serves Metro station. Right-turn-only lanes on east and west legs. South leg stubbed. Year Completed estimated (2012-2014).
Oakton, VA Fairfax Co. United States	Nutley St. SW / I-66 EB Exit Ramp (38.87714, -77.26629)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max)	2023	Replaced full cloverleaf interchange. https://outside.transform66.org/about_the_project/project_sections/nutley.asp
Grandview, MO Jackson Co. United States	US 71 SB Frontage Rd. / I-49-US 71 SB Ramps (38.87725, -94.52680)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 54.8637	Freeway Ramps (Grade-Separated) Single-Lane	2022	https://www.grandview.org/government/city-departments/public-works/projects/i-49-outer-roads-conversion
Oak Grove, MD Prince Georges Co. United States	MD 193 (Watkins Park Dr.) / Oak Grove Rd. (38.87737, -76.78108)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.1207	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Carefree Cir. / New Center Pl. (38.87741, -104.71720)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 44.6291	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	N 30th St. / Gateway Rd. (38.87780, -104.87071)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2023	https://coloradosprings.gov/project/30th-street-corridor-project
Colorado Springs, CO El Paso Co. United States	Mesa Rd. / Kissing Camels Dr. (38.87808, -104.86580)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 29.7525	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Washington, DC N/A Co. United States	Randle Circle (Mass. Ave. / Minn. Ave. / K St.) (38.87810, -76.96148)	Signalized Roundabout/Circle Existing	Signal None	7 Approaches 0 Driveways 118.0801	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	(unknown #2) (38.87847, -104.84910)	Other Existing	Unknown Unknown	0 Approaches 0 Driveways 18.5952	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Davidsonville Historic District, MD Prince George's Co. United States	Oak Grove Rd. / (parking) (38.87858, -76.77717)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)
Vialonga, Lisbon Vila Franca de Xira Portugal	EM502 (Rua do Olival Santo) / EM501 (Pátio do Castelo) / Rua Primeiro de Maio (38.87880, -9.06559)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Oakton, VA Fairfax Co. United States	Nutley St. SW / I-66 WB Exit Ramp (38.87982, -77.26743)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max)	2023	Replaces full cloverleaf interchange. https://outside.transform66.org/about_the_project/project_sections/nutley.asp
Overland Park, KS Johnson Co. United States	Lamar Ave. / W 137th St. / W 138th St. (38.88011, -94.65830)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2020	https://twitter.com/opcares/status/1307342447027122177
Columbia, MO Boone Co. United States	Cascades Dr. / Chelan Dr. / Chelan Cir. (38.88024, -92.37684)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.8218	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2003-2005). ICD estimated from Google Maps linework.
Washington, DC N/A Co. United States	H St. / Delaware Ave. (38.88028, -77.01262)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 31.6110	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Washington, DC N/A Co. United States	Pennsylvania Ave. / Potomac Ave. (38.88034, -76.98549)	Signalized Roundabout/Circle Existing	Signal None	0 Approaches 0 Driveways 81.8167	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Olathe, KS Johnson Co. United States	S. Ridgeview Rd. / E. Loula St. (38.88069, -94.79726)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 25.1027	Other (At-Grade) Single-Lane	2004	Completed August 2004. ICD estimated from Google Maps linework.
Overland Park, KS Johnson Co. United States	Carson St. / Payton Dr. / Kobe Dr. (38.88090, -94.66183)	Other Existing	Uncontrolled None	4 Approaches 0 Driveways 26.9621	Other (At-Grade) Single-Lane	2012	No yield signs or other control but otherwise typical roundabout geometry. ICD estimated from Google Maps linework.
Washington, DC N/A Co. United States	G St. / 1st St. SW (38.88119, -77.01228)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 31.6106	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Washington, DC N/A Co. United States	G St. / 3rd St. SW (38.88127, -77.01520)	Traffic Calming Circle Existing	Unknown Unknown	0 Approaches 0 Driveways 26.9620	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.
Chantilly, VA Fairfax Co. United States	VA 620 (Braddock Rd.) / VA 609 (Pleasant Valley Rd.) (38.88170, -77.48570)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.1024	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Washington, DC United States	L'Enfant Plaza SW (38.88172, -77.02601)	Other Existing	Other Unknown	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Pedestrian access to central island.
Colorado Springs, CO El Paso Co. United States	N Hancock Ave. / Pirates Heights / (parking lot) (38.88244, -104.80185)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.8912	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2006-2007). ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Tutt Blvd. / Greenway Pl. / (parking) (38.88292, -104.71469)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2023	Year Completed estimated (2022-2023).
Washington, DC United States	Maryland Ave. SW (38.88408, -77.03003)	Other Existing	All-Way Yield Unknown	1 Approaches 1 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)		Pedestrian access to central island; parking along circulatory roadway.
Lincoln, CA Placer Co. United States	Gateway Dr. / E St. / Crystalwood Cir. (38.88457, -121.29021)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2007).
South Milford Historic District, DE Sussex Co. United States	Wellness Way / Healthy Way / (parking) (38.88506, -75.39323)	Other Existing	Unknown Unknown	2 Approaches 2 Driveways 0.0000	Other (At-Grade) Single-Lane
Xigang District, Liaoning Dalian China	Bayi Plaza (38.88559, 121.64033)	Unknown Existing	Unknown Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Sobralinho, Lisbon Vila Franca de Xira Portugal	N10 (Caminho de Santiago-Caminho Português) / Estrada d'Alfarrobeira / (parking) (38.88563, -9.04786)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Olathe, KS Johnson Co. United States	N Hedge Ln. / N Spruce St. (38.88567, -94.85044)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.6239	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	Replaced older roundabout when new roadway (Hedge Ln.) added. ICD estimated from Google Maps linework.
Olathe, KS Johnson Co. United States	Indian Wells Dr. / Spruce St. (38.88568, -94.85022)	Roundabout Removed	All-Way Yield None	2 Approaches 0 Driveways 44.6239	Other (At-Grade) Single-Lane	2002	Replaced in 2015 with new roundabout in location shifted slightly to west. ICD estimated from Google Maps linework.
Arlington, VA Arlington Co. United States	Memorial Dr. / Arlington Memorial Bridge (38.88573, -77.06004)	Rotary Existing	Unknown Unknown	0 Approaches 0 Driveways 114.3488	Other (At-Grade) Unknown		ICD estimated from Google Maps linework.