Roundabouts Database Index

30065 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
Woodland, CA Yolo Co. United States	Road 25A / Miekle Ave. (38.64078, -121.73624)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 32.0040	Other (At-Grade) Single-Lane	2021	Year Completed estimated (2020-2021).
Woodland, CA Yolo Co. United States	Road 25A / Parkland Ave. (38.64099, -121.74450)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.0040	Other (At-Grade) Single-Lane	2020
Saint Charles, MD Charles Co. United States	Radford St. / Montpelier Dr. (38.64135, -76.97106)	Other Existing	Unknown Unknown	3 Approaches 4 Driveways 0.0000	Other (At-Grade) Single-Lane		Pedestrian access to central island.
Caseyville, IL St. Clair Co. United States	George E Chance Pkwy. / Villa Valley / Donner Ridge (38.64193, -90.00523)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2007-2008).
Corroios, Setúbal Seixal Portugal	Rua do Rouxinol / Rua da Igreja / Avenida Baía Natural do Seixal Ramps (38.64207, -9.14887)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)
Saint Charles, MD Charles Co. United States	Lexington Dr. / Montpelier Dr. (38.64225, -76.96877)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
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.
Caseyville, IL St. Clair Co. United States	George E Chance Pkwy. / (future road) / (parking) (38.64435, -89.98704)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2007-2008).
Woodland, CA Yolo Co. United States	Miekle Ave. / Marston Dr. (38.64444, -121.73614)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.1860	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Caseyville, IL St. Clair Co. United States	George E Chance Pkwy. / Blackwood Ridge / Boreal Ridge (38.64452, -89.99106)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2007-2008).
Woodland, CA Yolo Co. United States	Parkland Ave. / Marston Dr. (38.64459, -121.74446)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.0515	Other (At-Grade) Single-Lane	2015	ICD estimated from Google Maps linework.
Woodland, CA Yolo Co. United States	Promenade Dr. / Somerset Cir. (38.64501, -121.73150)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.7154	Other (At-Grade) Single-Lane	2007	Functional Class: Local ICD estimated from Google Maps linework.
Montemor-o-Novo, Évora Montemor-O-Novo Portugal	N4 (Rota Historica - Avenida Gago Coutinho) / N114 (Rota Historica) / Rua das Oficinas (38.64606, -8.20143)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Woodland, CA Yolo Co. United States	Campos Ave. / Mack Way / Shoemaker Ct. (38.64920, -121.73140)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.1843	Other (At-Grade) Single-Lane	2007	Functional Class: Local ICD estimated from Google Maps linework.
Woodland, CA Yolo Co. United States	Hunt St. / Heritage Pkwy. (38.64945, -121.74580)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2019	Year Completed estimated (2018-2020).
Montemor-o-Novo, Évora Montemor-O-Novo Portugal	N2-N4 (Avenida Gago Coutinho) / N114 (38.65008, -8.21972)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Woodland, CA Yolo Co. United States	Miekle Ave. / Galvin Way (38.65156, -121.73590)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.1162	Other (At-Grade) Single-Lane	2006	Previously controlled by new ICD estimated from Google Maps linework.
Sacramento, CA Sacramento Co. United States	Breezy Meadow Dr. / Terracina Dr. (38.65238, -121.50013)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2006-2007).
Woodland, CA Yolo Co. United States	Campos Ave. / Ortiz Ave. (38.65290, -121.73120)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.7792	Other (At-Grade) Single-Lane	2007	Functional Class: Local ICD estimated from Google Maps linework.
Sacramento, CA Sacramento Co. United States	Blackrock Dr. / N Breezy Meadow Dr. (38.65328, -121.49509)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2016
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.
Woodbridge, VA Prince William Co. United States	Belmont Bay Dr. / Course View Way (38.65403, -77.23640)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.1826	Other (At-Grade) Single-Lane	2000	ICD estimated from Google Maps linework.
Holts Summit, MO Callaway Co. United States	MO OO (E Simon Blvd.) / US 54 EB Ramps (38.65479, -92.11091)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2023	Raindrop shaped. https://www.modot.org/node/29043
Washington, IN Daviess Co. United States	2464 E National Hwy. / Industrial Park Dr. / Gateway Dr. (LTG Tony Jones Dr.) (38.65527, -87.13563)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.2440	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2013-2016).
Woodland, CA Yolo Co. United States	Harry Lorenzo Ave. / Farmers Central Rd. (38.65541, -121.74725)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9128	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Sobreda, Setúbal Almada Portugal	Estrada de Vale Mourelos [Via 6 / Rua Bernardim Machado] (38.65558, -9.18847)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Woodbridge, VA Prince William Co. United States	Belmont Bay Dr. / Palisades St. (38.65612, -77.23753)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.4412	Other (At-Grade) Multilane (2 Lane, unspecified)	2000	ICD estimated from Google Maps linework.
University City, MO St. Louis Co. United States	Delmar Blvd. / Trinity Ave. (38.65653, -90.31072)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.7103	Other (At-Grade) Single-Lane	2015	Installed as temporary roundabout ~2013. Made permanent 2015. ICD estimated from Google Maps linework.
Millsboro, DE Sussex Co. United States	Thomas Jefferson Ave. / Martin Van Buren Dr. (38.65661, -75.23751)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
St Louis, MO St. Louis City United States	SR 115 (Natural Bridge Ave. / Salisbury St.) / Natural Bridge Ave. / Parnell St. (38.65785, -90.20947)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2020	Elliptical shaped. ICD = 135 ft x 110 ft. https://nextstl.com/2022/03/crashes-down-on-natural-bridge-but-more-work-still-to-be-done/
Vincennes, IN Knox Co. United States	Kimmell Rd. / (parking) (38.65818, -87.50978)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2017	Southeast leg stubbed.
Sacramento, CA Sacramento Co. United States	New Market Dr. / Town Center Dr. (38.65823, -121.52205)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 57.9120	Other (At-Grade) Single-Lane	2002	Bike lane around circulatory roadway. East leg added 2019-2020.
Woodland, CA Yolo Co. United States	Harry Lorenzo Ave. / Patriot Way (38.65914, -121.74722)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 13.9893	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Chesterfield, MO St. Louis Co. United States	Nooning Tree Dr. / Brightfield Manor Dr. (38.66192, -90.53998)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2000	Year Completed estimated (1996-2002).
Barreiro, Setúbal Barreiro Portugal	Via Rápida do Barreiro [Avenida das Nacionalizações / Avenida José Gomes Ferreira / Alameda Ary dos Santos] (38.66195, -9.05462)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Luray, VA Page Co. United States	W Main St. / Northcott Dr. (38.66285, -78.47863)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://www.virginiadot.org/projects/staunton/page_county_8211_route_211-340,_west_main_street,_northcott_drive_8211_roundabout_and_intersection_improvements.asp
Trafaria, Setúbal Almada Portugal	Avenida Torrado Da Silva / Estrada IC20 Acessos (38.66354, -9.19104)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
St Louis, MO St. Louis City United States	SR 115 (Natural Bridge Ave.) / Vandeventer Ave. (38.66375, -90.22271)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0040	Other (At-Grade) Single-Lane	2020	https://nextstl.com/2022/03/crashes-down-on-natural-bridge-but-more-work-still-to-be-done/
Almendralejo, Estremadura Badajoz Spain	N-630 / EX-359 / E-803 SB On-Ramp (38.66395, -6.38084)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		Concentric circulatory roadway striping.
Chesterfield, MO St. Louis Co. United States	Faust Park / (parking) (38.66416, -90.54198)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Lavradio, Setúbal Barreiro Portugal	Avenida das Nacionalizações / Rua dos Resistentes Antifascistas / Rua Doutor Miguel Bombarda (38.66506, -9.05575)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Barreiro, Setúbal Barreiro Portugal	Avenida das Nacionalizações / Rua do Industrial Alfredo da Silva / Rua da Indústria (38.66715, -9.05662)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Woodland, CA Yolo Co. United States	Gum Ave. / Bourn Dr. (38.66820, -121.74710)	Roundabout Removed	All-Way Yield None	4 Approaches 0 Driveways 64.3428	Other (At-Grade) Single-Lane	2008	Built as temporary in 2002. Temporary removed in 2008 and converted to AWSC. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Trafaria, Setúbal Almada Portugal	Estrada EN377-1 / Caminho da Raposeira / Rua Primeiro de Maio (38.66967, -9.23341)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Almendralejo, Estremadura Badajoz Spain	N-630 (38.67082, -6.38770)	Roundabout Existing	All-Way Yield Unknown	2 Approaches 2 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		Concentric circulatory roadway striping.
Lavradio, Setúbal Barreiro Portugal	Avenida das Nacionalizações / Rua Dom José Cárcomo Lobo / Rua do Quinto Terceiro (38.67105, -9.05191)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Fountain, CO El Paso Co. United States	Santa Fe Ave. / S Charter Oak Ranch Rd. (38.67148, -104.71481)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Single-Lane	2023	Painted splitter island on west leg. https://www.codot.gov/news/2023/may/mamsip-charter-oak-ranch-road-completed
Georgetown, DE Sussex Co. United States	S Bedford St. / Arrow Safety Rd. (38.67394, -75.37738)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023	There's a short video of a truck going around this roundabout posted on Sept 1 at https://www.facebook.com/delawaredot/ This roundabout currently has three legs, but a fourth will be added some time in the future.
Chesterfield, MO St. Louis Co. United States	N Outer 40 Rd. / I-64 WB Exit Ramp (38.67582, -90.65115)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Freeway Ramps (Grade-Separated) Single-Lane	2010	Year Completed estimated (2009-2010).
Almendralejo, Estremadura Badajoz Spain	N-630 / Calle Ortega y Muñoz / Calle las Encinas (38.67584, -6.39247)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 1 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
North Highlands, CA Sacramento Co. United States	Freedom Park Dr. / 34th St. / Dudley Blvd. (38.67588, -121.38752)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2012
North Highlands, CA Sacramento Co. United States	Freedom Park Dr. / 32nd St. (38.67592, -121.39216)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2012
Piedade, Setúbal Almada Portugal	Avenida Dom Nuno Álvares Pereira / Avenida Bento Gonçalves / Rua Direita / Rua Caetano Maria Batalha (38.67617, -9.16488)	Roundabout Existing	All-Way Yield At-grade Rail Crossing Signals/Gates (controlling circulatory roadway only)	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		Pedestrian signals and signals for light rail crossing through central island.
Sacramento, CA Sacramento Co. United States	Crossfield Dr. / Meister Way / Airport Blvd. NB Ramps (38.67890, -121.58937)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 51.8160	Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max)	2023	Serves Sacramento International Airport. https://sacramento.aero/scas/about/news-and-events/upcoming-smf-construction-plan-ahead-for-improved-travel-experience
Sacramento, CA Sacramento Co. United States	Crossfield Dr. / Lindbergh Dr. / Airport Blvd. SB Ramps (38.67892, -121.59240)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Freeway Ramps (Grade-Separated) Single-Lane	2023	Serves Sacramento International Airport. https://sacramento.aero/scas/about/news-and-events/upcoming-smf-construction-plan-ahead-for-improved-travel-experience
Madison, CA Yolo Co. United States	SR 16 / CR 89 (38.68204, -121.96678)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2019
Sacramento, CA Sacramento Co. United States	Northborough Dr. / Heritage Park Ln. / Rose Arbor Dr. (38.68221, -121.51550)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.3081	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Almendralejo, Estremadura Badajoz Spain	N-630 / Calle de Santa Marta (38.68229, -6.39858)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Woodbridge, VA Prince William Co. United States	Greatbridge Rd. / Mays Quarter Rd. (38.68304, -77.34802)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.7509	Other (At-Grade) Single-Lane	1998	Year Completed estimated (1994-2002). ICD estimated from Google Maps linework.
Citrus Heights, CA Sacramento Co. United States	Stock Ranch Rd. / Woodside Dr. / Fountain Square Dr. (38.68438, -121.29649)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2004	Bike lanes striped within circulatory roadway. Year Completed estimated (2003-2004).
Woodbridge, VA Prince William Co. United States	Mays Quarter Rd. / Dorset Dr. / Weejun Loop (38.68551, -77.34407)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.3589	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Warrenton, VA Fauquier Co. United States	US 17 Business / Lord Fairfax Dr. / US 15-US 17-US 29 (Eastern Bypass) NB Ramps (38.68557, -77.78602)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2020	http://www.virginiadot.org/projects/culpeper/warrentoninterchange.asp
Chesterfield, MO St. Louis Co. United States	River Valley Dr. / River Bend Dr. (38.68602, -90.50327)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2003	Year Completed estimated (2002-2003).
St Louis, MO St. Louis City United States	SR 115 (Natural Bridge Ave.) / Goodfellow Blvd. (38.68607, -90.27131)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2021	Add-lane right-turn bypass lane on southeast leg; yield-controlled right-turn bypass lane on northeast leg.
Woodland, CA Yolo Co. United States	Palm Ave. / Keystone Ave. (38.68635, -121.77050)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 41.0198	Other (At-Grade) Single-Lane		Circular intersection in older neighborhood. ICD estimated from Google Maps linework.
Jardia, Setúbal Montijo Portugal	N5 / N11-2 / Rua do Operário (38.68648, -8.94418)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Warrenton, VA Fauquier Co. United States	US 17 Business (James Madison Hwy.) / US 15-US 17-US 29 (Eastern Bypass) SB Ramps (38.68752, -77.78767)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2020	http://www.virginiadot.org/projects/culpeper/warrentoninterchange.asp
St Louis, MO St. Louis Co. United States	Willow Village Pkwy. / Beckham Ridge Ct. / Willowbrooke Manors Ct. / Kennabrooke Ct. (38.68853, -90.41193)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2014	One-stage unmarked pedestrian crossings.
Almendralejo, Estremadura Badajoz Spain	Avenida de A Rúa / Camino Corona / Poligono Pabellon (38.68884, -6.41395)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Almendralejo, Estremadura Badajoz Spain	EX-300 (38.68926, -6.42754)	Roundabout Existing	All-Way Yield Unknown	2 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Federalsburg, MD Caroline Co. United States	MD 307 / MD 313 / MD 318 (38.68938, -75.78949)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.4247	Other (At-Grade) Single-Lane	1999	Rural, installed for safety reasons Previously controlled by two-way stop 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.
Almendralejo, Estremadura Badajoz Spain	EX-300 / EX-359 (38.69145, -6.43905)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 1 Driveways	Other (At-Grade) Multilane (3+ Lane)		Concentric circulatory roadway striping.
Almendralejo, Estremadura Badajoz Spain	Carretera San Serván / (unknown) (38.69153, -6.40953)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Almendralejo, Estremadura Badajoz Spain	N-630 / Calle Gonzalo Hernandez / Calle Almendro (38.69168, -6.40553)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 2 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Woodbridge, VA Prince William Co. United States	Greatbridge Rd. / Chanceford Dr. (38.69295, -77.34576)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.8976	Other (At-Grade) Single-Lane	2003	ICD estimated from Google Maps linework.
Afonsoeiro, Setúbal Montijo Portugal	Estrada Nacional 5 / Circular Externa / Rua Vasco da Gama (38.69332, -8.95082)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Sacramento, CA Sacramento Co. United States	Airport Blvd. / Lindbergh Dr. / Aviation Dr. (38.69345, -121.59025)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2011	South leg is exit only.
Almendralejo, Estremadura Badajoz Spain	Calle Jarabugo / Calle Sup 37ii (38.69413, -6.43824)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Chesapeake Beach, MD Calvert Co. United States	Harrison Blvd. / Sansbury Dr. (38.69561, -76.55797)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-Lane	1997	Year Completed estimated (1993-2004).
Almendralejo, Estremadura Badajoz Spain	Calle Sup 37ii (38.69575, -6.43608)	Roundabout Existing	All-Way Yield Unknown	2 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		Concentric circulatory roadway striping.
Accokeek, MD Prince George's Co. United States	St Mary's View Rd. / Lusby Ridge Rd. (38.69721, -76.95157)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane		No splitter island on south leg.
Lewes, DE Sussex Co. United States	Beaver Dam Rd. / Quiet Harbor Way (38.69743, -75.21559)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	https://www.capegazette.com/article/roundabouts-abound/228013
Afonsoeiro, Setúbal Montijo Portugal	N4 (Circular Externa) / (Fórum Montijo shopping centre entrance) (38.69761, -8.94484)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
São Domingos de Rana, Lisbon Cascais Portugal	Avenida dos Bombeiros Voluntários / Rua do Dia Mundial da Criança (38.69795, -9.35301)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Warrenton, VA Fauquier Co. United States	E Shirley Ave. / Falmouth St. (38.69843, -77.78795)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 13.0496	Other (At-Grade) Single-lane w/ Traversable Central Island	2018	Constructed Fall 2018, mini-roundabout with one bypass lane ICD estimated from Google Maps linework.
Sedalia, MO Pettis Co. United States	Rte Y (W 16th St.) / Winchester Dr. (38.69957, -93.27763)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2011	Year Completed estimated (2010-2012).
Brandywine, MD Prince George's Co. United States	MD 373 / Accokeek Rd. / MD 5 (Branch Ave.) SB On-Ramp (38.70076, -76.87599)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 39.6240	Freeway Ramps (Grade-Separated) Single-Lane	2019	MD 5 (Branch Ave.) was converted to limited access. https://www.thebaynet.com/articles/0419/newtrafficshiftstartsinbrandywineareathursday.html.
Georgetown, DE Sussex Co. United States	Sand Hill Rd. / Clark Dr. (38.70163, -75.36785)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2022	West leg is entrance to Cheer Community Center. East leg stubbed. https://www.wmdt.com/2022/08/georgetown-east-gateway-project-completed-ensuring-safer-roadways-for-locals/
Afonsoeiro, Setúbal Montijo Portugal	N4 (Circular Externa) / Avenida das Portas da Cidade (38.70209, -8.94456)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Cascais, Lisbon Cascais Portugal	N9 (Avenida de Sintra) / Rua Henrique de Seixas (38.70356, -9.41787)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Normandy, MO St. Louis Co. United States	Natural Bridge Rd. (SR 115) / Florissant Rd. (38.70418, -90.29664)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 39.6240	Other (At-Grade) Single-Lane	2015
Weldon Spring, MO St. Charles Co. United States	Technology Dr. / Meadows Pkwy. / Wolfrum Rd. / I-64 WB Exit Ramp (38.70526, -90.67410)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.9600	Freeway Ramps (Grade-Separated) Single-Lane		Oval shaped. ICD = 200 ft x 180 ft. Built initially as 2x2 roundabout in 2005-2006. Concentric circulatory roadway striping. Converted to single lane using by striping out inner circulatory roadway lane and left entry lane on southwest leg 2020-2021.
Jardia, Setúbal Montijo Portugal	N4 (Avenida Dom Manuel) / Rua das Forças Armadas / Rua Infante Dom Francisco (38.70686, -8.92771)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Afonsoeiro, Setúbal Montijo Portugal	N4 (Circular Externa) / Avenida Garcia da Orta (38.70694, -8.94501)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Warrensburg, MO Johnson Co. United States	SR 13 / Old SR 13 / SE 101st Rd. (38.70853, -93.73029)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.0071	Other (At-Grade) Single-Lane	2011	Functional Class: Arterial ICD estimated from Google Maps linework.
Alcochete, Setúbal Alcochete Portugal	N4 / N118 (38.70905, -8.89566)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Rehoboth Beach, DE Sussex Co. United States	Coatue Blvd. / Wauwinet Ct. / Sconset Ct. (38.70921, -75.13040)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Rehoboth Beach, DE Sussex Co. United States	Wanoma Cir. / Coatue Blvd. (38.70922, -75.12642)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Linda-a-Velha, Lisbon Oeiras Portugal	Avenida dos Bombeiros Voluntários de Algés / Alameda Engenheiro José Mattos e Silva / A36 NB Ramp (38.70931, -9.22470)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		Oval shaped.