Roundabouts Database Index

29679 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
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.
Arcata, CA Humboldt Co. United States	West End Rd. / Spear Ave. / Saint Louis Rd. (40.88910, -124.08210)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.0866	Other (At-Grade) Single-Lane	1998	Functional Class: Arterial ICD estimated from Google Maps linework.
Arcata, CA Humboldt Co. United States	Samoa Blvd. / Union St. (40.86140, -124.07730)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.2273	Other (At-Grade) Single-Lane	1999	Functional Class: Arterial ICD estimated from Google Maps linework.
Arcata, CA Humboldt Co. United States	Samoa Blvd. / Buttermilk Ln. (40.85710, -124.07250)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.1329	Other (At-Grade) Single-Lane	1999	Functional Class: Arterial ICD estimated from Google Maps linework.
Arcata, CA Humboldt Co. United States	Guintoli Ln. / US 101 SB Ramps (40.90400, -124.08920)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.7180	Freeway Ramps (Grade-Separated) Single-Lane	2005	ICD estimated from Google Maps linework.
Arcata, CA Humboldt Co. United States	Guintoli Ln. / US 101 NB Ramps (40.90492, -124.08510)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.3015	Freeway Ramps (Grade-Separated) Single-Lane	2005	ICD estimated from Google Maps linework.
Blue Lake, CA Humboldt Co. United States	Blue Lake Blvd. / Chartin Rd. (40.88640, -123.99540)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.3789	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
McKinleyville, CA Humboldt Co. United States	School Rd. / Salmon Ave. / McKinleyville Ave. (40.93439, -124.11240)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.0680	Other (At-Grade) Single-Lane	2013	Year Completed estimated (2012-2014). ICD estimated from Google Maps linework.
Manzhouli, Inner Mongolia Hulun Buir China	(unknown) (49.62575, 117.37220)	Unknown Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Unknown
Huittinen, Satakunta Huittinen Finland	Valtatie 230 (Huittistenkatu) / Hannulanpuistokatu / Kirkonkyläntie (61.17329, 22.70953)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Huittinen, Satakunta Huittinen Finland	Risto Rytin katu / Lauttakylänkatu / Pennintie (61.17609, 22.69812)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Santa Olalla del Cala, Andalusia Huelva Spain	A-461 (Carretera a El Real de la Jara) / (unknown) (37.91344, -6.21657)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Santa Olalla del Cala, Andalusia Huelva Spain	HU-9116 / A-66 Ramps (37.90566, -6.21221)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		Concentric circulatory roadway striping.
Santa Olalla del Cala, Andalusia Huelva Spain	HU-9116 / (unknown) (37.90271, -6.21975)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		Concentric circulatory roadway striping.
Jersey City, NJ Hudson Co. United States	Morris Pesin Dr. / Burma Rd. (40.69977, -74.06721)	Other Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane		Painted splitter islands; no deflection on northwest leg.
Jersey City, NJ Hudson Co. United States	Lincoln Park / Lookout Dr. (40.72458, -74.08101)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)
Secaucus, NJ Hudson Co. United States	Brianna Ln. / Riverside Station Blvd. (40.76611, -74.08389)	Other Existing	Unknown Unknown	3 Approaches 1 Driveways 0.0000	Other (At-Grade) Unknown		No splitter islands on east and west legs.
North Bergen, NJ Hudson Co. United States	Riverview Dr. / Broad Dr. (40.80071, -74.00218)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		Parking along circulatory roadway.
Bayonne, NJ Hudson Co. United States	Avenue E / I-78 Ramps (40.68260, -74.09906)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 54.8640	Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x2 max)	2018	Roundabout centered under I-78 freeway ramps. Year Completed estimated (2017-2018).
Hudiksvall, Gävleborg County Hudiksvalls kommun Sweden	Bergsjövägen / Björnmyravägen / Hede-Finnflovägen (61.73851, 17.08689)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Single-Lane		Completed in 2009 or earlier.
Hudiksvall, Gävleborg County Hudiksvalls kommun Sweden	Bergsjövägen / Sofiedalsvägen / Furulundsvägen (61.73542, 17.09526)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane		Completed in 2009 or earlier.
Hudiksvall, Gävleborg County Hudiksvalls kommun Sweden	Kungsgatan / Bergsjövägen / Drottninggatan (61.73425, 17.10062)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane		Completed in 2009 or earlier.
Hudiksvall, Gävleborg County Hudiksvalls kommun Sweden	Södra vägen / Västra vägen / Stationsgatan (61.71721, 17.09503)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 57.9120	Other (At-Grade) Multilane (2 Lane, 2x2 max)		Completed in 2009 or earlier.
Skarmyra, Gävleborg County Hudiksvalls kommun Sweden	Rte 84 / E4 SB Ramps (61.71420, 17.04736)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Freeway Ramps (Grade-Separated) Single-Lane		Raindrop shaped. Completed in 2009 or earlier.
Skarmyra, Gävleborg County Hudiksvalls kommun Sweden	Rte 84 / E4 NB Ramps (61.71437, 17.05036)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Freeway Ramps (Grade-Separated) Single-Lane		Raindrop shaped. Completed in 2009 or earlier.
Björkmo, Gävleborg County Hudiksvalls kommun Sweden	Forsavägen / E4 SB Ramps (61.65449, 17.01670)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Freeway Ramps (Grade-Separated) Single-Lane	2011	Raindrop shaped.
Björkmo, Gävleborg County Hudiksvalls kommun Sweden	Forsavägen / E4 NB Ramps (61.65422, 17.01869)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Freeway Ramps (Grade-Separated) Single-Lane	2011	Raindrop shaped.
Rossla, Gävleborg County Hudiksvalls kommun Sweden	(unknown) / E4 SB Ramps (61.60826, 17.00904)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Freeway Ramps (Grade-Separated) Single-Lane	2011
Rossla, Gävleborg County Hudiksvalls kommun Sweden	(unknown) / E4 NB Ramps (61.60874, 17.01314)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 42.6720	Freeway Ramps (Grade-Separated) Single-Lane	2011
Kungens Kurva, Stockholm County Huddinge Sweden	Kungens Kurvaleden / Prismavägen / Pyramidbacken (59.26185, 17.90469)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 32.3533	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Kungens Kurva, Stockholm County Huddinge Sweden	Kungens Kurvaleden / Skärholmsvägen / Vårby allé (59.26571, 17.89632)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 32.9600	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Kungens Kurva, Stockholm County Huddinge Sweden	Trafikplats Lindvreten (Kungens Kurvaleden / E20 EB Ramps) (59.26354, 17.89702)	Roundabout Existing	All-Way Yield Unknown	2 Approaches 0 Driveways 29.9101	Freeway Ramps (Grade-Separated) Single-Lane		Raindrop shape. ICD estimated from Google Maps linework.
Kungens Kurva, Stockholm County Huddinge Sweden	Kungens Kurvaleden / (parking lots) (59.26073, 17.89922)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 32.9648	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Kungens Kurva, Stockholm County Huddinge Sweden	Dialoggatan / Modulvägen / Ekgårdsvägen (59.26924, 17.91180)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 24.4123	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Kungens Kurva, Stockholm County Huddinge Sweden	Dialoggatan / Månskärsvägen (59.26605, 17.91211)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 18.9213	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Kungens Kurva, Stockholm County Huddinge Sweden	Kungens Kurvaleden / Dialoggatan (59.26414, 17.91224)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 31.7407	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Kungens Kurva, Stockholm County Huddinge Sweden	Modulvägen / (parking lots) (59.26924, 17.91356)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 21.3608	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Kungens Kurva, Stockholm County Huddinge Sweden	Ekgardsvägen connector / E4 EB Ramps (59.27214, 17.91426)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 1 Driveways 23.1897	Freeway Ramps (Grade-Separated) Single-Lane		ICD estimated from Google Maps linework.
Kungens Kurva, Stockholm County Huddinge Sweden	Ekgardsvägen / Ekgardsvägen connector (59.27153, 17.91520)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 26.8517	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Segeltorp, Stockholm County Huddinge Sweden	Smista allé / (parking lot) (59.27583, 17.91885)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 23.1872	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Kungens Kurva, Stockholm County Huddinge Sweden	Smistavägen / Smista allé / Ekgårdsvägen (59.27317, 17.91945)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 40.2756	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Segeltorp, Stockholm County Huddinge Sweden	Smista allé / Gamla Södertäljevägen (59.27438, 17.92056)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 35.3925	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Kungens Kurva, Stockholm County Huddinge Sweden	Smistavägen / Modulvägen (59.27173, 17.92147)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 29.2926	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Kungens Kurva, Stockholm County Huddinge Sweden	Kungens Kurvaleden / Diagonalvägen (59.26488, 17.92277)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 25.0258	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Kungens Kurva, Stockholm County Huddinge Sweden	Smistavägen / Tangentvägen (59.27019, 17.92319)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 33.5660	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Kungens Kurva, Stockholm County Huddinge Sweden	Smistavägen / Ellipsvägen (59.26752, 17.92557)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 29.2962	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Segeltorp, Stockholm County Huddinge Sweden	Gamla Södertäljevägen / Verkstadsvägen / Skördevägen (59.27880, 17.93935)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 18.9142	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Kungens Kurva, Stockholm County Huddinge Sweden	Kungens Kurvaleden / Smistavägen (59.26549, 17.92616)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 41.5055	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Snättringe, Stockholm County Huddinge Sweden	Häradsvägen / Lönnvägen (59.25982, 17.97534)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 19.5352	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Fullersta, Stockholm County Huddinge Sweden	Norrängsvägen / Åvägen (59.24135, 17.97852)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 29.3187	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Segeltorp, Stockholm County Huddinge Sweden	Häradsvägen / Smista allé (59.28346, 17.94268)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 42.0936	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Segeltorp, Stockholm County Huddinge Sweden	Häradsvägen / Gamla Södertäljevägen (59.27967, 17.94277)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 32.3364	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Segeltorp, Stockholm County Huddinge Sweden	Bredängsvägen / Vantörsvägen / E4 EB Ramps (59.28605, 17.94959)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 40.2604	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Segeltorp, Stockholm County Huddinge Sweden	Häradsvägen / Mälarvägen / (parking lot) (59.28443, 17.94703)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 24.4014	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Skogås, Stockholm County Huddinge Sweden	Gamla Nynäsvägen / Lunnarevägen / Stockvägen (59.20964, 18.14458)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 23.2322	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Skogås, Stockholm County Huddinge Sweden	Gamla Nynäsvägen / Lissmavägen (59.19927, 18.13803)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 26.9087	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Skogås, Stockholm County Huddinge Sweden	Gamla Nynäsvägen / Vallmyravägen / Centrumvägen (59.20625, 18.14020)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 20.7888	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Skogås, Stockholm County Huddinge Sweden	Gamla Nynäsvägen / Österleden (59.21835, 18.14105)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 45.8414	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Skogås, Stockholm County Huddinge Sweden	Lissmavägen / Rte 73 NB Ramps (59.20043, 18.13459)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 38.5270	Freeway Ramps (Grade-Separated) Single-Lane		ICD estimated from Google Maps linework.
Trångsund, Stockholm County Huddinge Sweden	Trångsundsvägen / (unknown) (59.22768, 18.13383)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 20.1647	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Trångsund, Stockholm County Huddinge Sweden	Rte 271 / Gamla Nynäsvägen / Trångsunds Trafikplats / Storvretsvägen (59.22655, 18.13267)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 36.6643	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Skogås, Stockholm County Huddinge Sweden	Svarvarvägen / Nyckelvägen (59.20093, 18.12700)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 20.7920	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Skogås, Stockholm County Huddinge Sweden	Lissmavägen / Svarvarvägen (59.20011, 18.12772)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 36.6927	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Skogås, Stockholm County Huddinge Sweden	Lissmavägen / Truckvägen (59.19880, 18.12450)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 26.9090	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Sjödalen, Stockholm County Huddinge Sweden	Lännavägen / Kommunalvägen (59.24083, 17.99439)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 25.0435	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Snättringe, Stockholm County Huddinge Sweden	Stambanevägen / Häradsvägen / Stuvstaleden (59.25373, 17.99482)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 27.4763	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Snättringe, Stockholm County Huddinge Sweden	Stambanevägen / Stationsvägen (59.25294, 17.99528)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 14.6544	Other (At-Grade) Single-lane w/ Traversable Central Island		ICD estimated from Google Maps linework.
Stuvsta, Stockholm County Huddinge Sweden	Lännavägen / Gymnasievägen (59.24153, 17.99536)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 26.8754	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Stuvsta, Stockholm County Huddinge Sweden	Stationsvägen / Stuvstavägen (59.25002, 17.99854)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 15.8769	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Sjödalen, Stockholm County Huddinge Sweden	Rte 259 / Trollskogsvägen (59.22008, 18.00909)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 22.0028	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Sjödalen, Stockholm County Huddinge Sweden	Rte 259 / Balingsnäsvägen (59.22117, 18.00765)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 24.4467	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Park Rapids, MN Hubbard Co. United States	US 71 (Park Ave.) / Industrial Park Rd. / Crocus Hill St. (46.90736, -95.05838)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2019	http://www.dot.state.mn.us/d2/projects/2019/hwy71-parkrapids/index.html
Huaquillas, El Oro Huaquillas Ecuador	Carretera Transversal / Avenida de la Republica (-3.49669, -80.20829)	Other Existing	Other Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Circulatory roadway yield to entering traffic.
Huaquillas, El Oro Huaquillas Ecuador	Avenida de la Republica / Martha Bucaram (-3.48451, -80.21505)	Unknown Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Unknown
Huaquillas, El Oro Huaquillas Ecuador	Martha Bucaram / Velasco Ibarra (-3.47772, -80.20904)	Unknown Existing	Unknown Unknown	5 Approaches 0 Driveways	Other (At-Grade) Unknown
Hradec Králové, Hradec Králové Hradec Králové Czechia	třída Edvarda Beneše / Palachova / Štefánikova (50.19044, 15.84140)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane		Elliptical shaped.
Laurel, MD Howard Co. United States	Weathered Stone Way / Boulder Ridge Rd. / Stone Lake Dr. (39.13774, -76.84066)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Laurel, MD Howard Co. United States	Boulder Ridge Rd. / Polished Pebble Way (39.13864, -76.84358)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Elkridge, MD Howard Co. United States	Toomey Ln. / Fairlee Rd. (39.21083, -76.71160)	Roundabout Existing	All-Way Yield None	3 Approaches 2 Driveways 27.4320	Other (At-Grade) Single-Lane	2002
Ellicott City, MD Howard Co. United States	Columbia Rd. / Hemlock Cone Way / Kingscup Ct. (39.24949, -76.83326)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.3360	Other (At-Grade) Single-lane w/ Traversable Central Island	2019
Columbia, MD Howard Co. United States	Stevens Forest Rd. / Farewell Rd. / Night Street Hill (39.20114, -76.84781)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-lane w/ Traversable Central Island	2019
Elkridge, MD Howard Co. United States	Toomey Ln. / Clements Ln. (39.20950, -76.71291)	Other Existing	Unknown Unknown	2 Approaches 4 Driveways 0.0000	Other (At-Grade) Unknown		No splitter islands.
Ellicott City, MD Howard Co. United States	Hillsborough Rd. / English Morning Ln. (39.25046, -76.79507)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Ellicott City, MD Howard Co. United States	Nightingale Ct. / Academy Rd. (39.24564, -76.79297)	Other Existing	Unknown Unknown	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Ellicott City, MD Howard Co. United States	Coventry Court Dr. (39.27862, -76.87340)	Other Existing	Unknown Unknown	2 Approaches 2 Driveways 0.0000	Other (At-Grade) Unknown
Ellicott City, MD Howard Co. United States	Lancelot Cross / Butterfruit Way / Argent Path / Stardust Ln. (39.28522, -76.90384)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 57.9120	Other (At-Grade) Single-Lane	1998	Year Completed estimated (1993-2002).
Ellicott City, MD Howard Co. United States	Academy Rd. / Hillsborough Rd. / Chews Vineyard (39.24993, -76.78913)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Columbia, MD Howard Co. United States	Vantage Point Rd. (39.22074, -76.85392)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Columbia, MD Howard Co. United States	Charter Dr. / (parking) (39.21273, -76.88310)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2013	Converted from cul-de-sac. Year Completed estimated (2011-2014).
Kokomo, IN Howard Co. United States	Touby Pike / CR 250N (40.51308, -86.09981)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023	Provides access to Stellantis and Samsung SDI battery plant being built at this location
Columbia, MD Howard Co. United States	Tamar Dr. / Old Montgomery Rd. (39.20533, -76.82822)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2022	https://www.howardcountymd.gov/News090122c
Savage, MD Howard Co. United States	Washington St. / Foundry St. (39.13656, -76.82513)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 18.2880	Other (At-Grade) Single-lane w/ Traversable Central Island	2021	Painted splitter islands. Pedestrian crossing on west leg adjacent to circulatory roadway. https://www.howardcountymd.gov/News120121
Glenelg, MD Howard Co. United States	Triadelphia Rd. / Ten Oaks Rd. (39.26399, -76.98621)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0040	Other (At-Grade) Single-Lane	2000	Year Completed estimated (1992-2002).
Marriottsville, MD Howard Co. United States	Sand Hill Rd. / Sand Hill Manor Dr. / Mount View Rd. (39.31018, -76.93043)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	1998	Year Completed estimated (1993-2002).
Kokomo, IN Howard Co. United States	Smith Rd. (CR 300N) / Sparks Rd. (CR 50E) (40.52021, -86.11715)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2024
Columbia, MD Howard Co. United States	Owen Brown Rd. / Martin Rd. (39.19989, -76.86930)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2002-2005).
Columbia, MD Howard Co. United States	Oakland Mills Rd. / MD 175 SB Ramps / (unknown) (39.21308, -76.83456)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Freeway Ramps (Grade-Separated) Single-Lane	2017	Year Completed estimated (2016-2017).
Columbia, MD Howard Co. United States	Oakland Mills Rd. / Old Montgomery Rd. (39.20788, -76.83157)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2017
Clarksville, MD Howard Co. United States	Linden Church Rd. / MD 32 NB Ramps (39.22942, -76.97263)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Freeway Ramps (Grade-Separated) Single-Lane	2013	Year Completed estimated (2011-2014).