Roundabouts Database Index

28859 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
Monza, Lombardy Monza e Brianza Italy	SP527 (Via Lario) / Via Monte Curone (45.59103, 9.24844)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Montrose, CO Montrose Co. United States	Miami Rd. / Hillcrest Dr. (38.48179, -107.85677)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2019	https://www.cityofmontrose.org/701/Miami-Hillcrest-Roundabout-Project
Montrose, CO Montrose Co. United States	S Hillcrest Dr. / Sunnyside Rd. (38.47450, -107.85663)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 15.8954	Other (At-Grade) Single-Lane	2016	date: https://www.cityofmontrose.org/CivicAlerts.aspx?AID=1235 ICD estimated from Google Maps linework.
Montrose, CO Montrose Co. United States	Ogden Rd. / Woodgate Rd. (38.45096, -107.86297)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.7365	Other (At-Grade) Single-Lane	2011	Year Completed estimated (2011-2012). ICD estimated from Google Maps linework.
Montréal, QC Montréal Region Canada	Ave. Marie-Curie / Blvd. Alfred Nobel (45.48518, -73.76222)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.6801	Other (At-Grade) Multilane (2 Lane, unspecified)	1998	Completed November 1998. Functional Class: Collector ICD estimated from Google Maps linework.
Montreal, QC Montreal Canada	Boulevard René-Lévesque / Rue Jacques-le Ber / A-10 NB Onramp / A-15 WB Offramp (45.47093, -73.53801)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 36.8521	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2007	Year Completed estimated (2004-2009). ICD estimated from Google Maps linework.
Montreal, QC Montreal Canada	Carrefour Alexander-Graham-Bell (Chemin de la Pointe N / A-15 WB Offramp / A-10 NB Onramp) (45.47195, -73.54155)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 39.3640	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2007	Year Completed estimated (2004-2009). ICD estimated from Google Maps linework.
Montreal, QC Montreal Canada	Boulevard de l'Île des Soeurs / Boulevard René-Lévesque (45.46579, -73.54476)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 36.8555	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	Year Completed estimated (2002-2004). ICD estimated from Google Maps linework.
Montreal, QC Montreal Canada	Boulevard de l'Île des Soeurs / Place du Commerce / Chemin du Golf (45.46789, -73.54627)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 46.0676	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	Year Completed estimated (2002-2004). ICD estimated from Google Maps linework.
Montreal, QC Montreal Canada	Boulevard des Sources / Boulevard Riverdale / Rue Debours (45.51300, -73.82524)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.0000	Other (At-Grade) Single-Lane	2003	Year Completed estimated (2002-2004).
Longueuil, QC Montreal Canada	Avenue Pierre-Dupuy/Avenue de Casino/Chemin des Floralies (45.50770, -73.52522)	Other Existing	Other None	3 Approaches 1 Driveways	Other (At-Grade) Single-Lane		Circulatory roadway stops for entering traffic.
Dorval, QC Montreal Canada	Dorval Traffic Circle [Autoroute 520 (Avenue Dorval) / Autoroute 20 Ramps] (45.44697, -73.74161)	Signalized Roundabout/Circle Existing	Signal None	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)
Montreal, QC Montreal Canada	Avenue Pierre-de Coubertin / Rue Leclaire (45.56049, -73.54725)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.0000	Other (At-Grade) Single-Lane	2022	https://journalmetro.com/local/2986842/un-carrefour-giratoire-trop-dangereux-pour-les-cyclistes-et-les-pietons/
Montreal, QC Montreal Canada	Avenue Pierre-de Coubertin / Avenue Desjardins (45.55450, -73.55120)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.0000	Other (At-Grade) Single-Lane	2021
Montmagny, QC Montmagny Regional County Municipality Canada	Chemin des Poirier / Rue des Entrepreneurs (46.97044, -70.57711)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 38.3041	Other (At-Grade) Single-Lane	2015	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)
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)
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)
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)
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)
Afonsoeiro, Setúbal Montijo Portugal	Circular Externa / Rua Antero de Quental (38.71345, -8.94616)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Afonsoeiro, Setúbal Montijo Portugal	Circular Externa / Rua das Naus (38.71601, -8.95715)	Roundabout Existing	All-Way Yield None	2 Approaches 2 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
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)
Shenandoah, TX Montgomery Co. United States	David Memorial Dr. / Shenandoah Park Dr. (30.19171, -95.44727)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	Right-turn-only markings in both lanes on all entries.
(unincorporated), TX Montgomery Co. United States	Woodforest Pkwy. / Woodforest Blvd. / Spyglass Park Ln. (30.27643, -95.55388)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 67.0560	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2011-2012).
Darnestown, MD Montgomery Co. United States	Schaeffer Rd. / Germantown Park Dr. / Central Park Cir. (39.15003, -77.30152)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Single-Lane	2004	Right-turn-only lane on northeast leg. Year Completed estimated (2002-2005).
Calverton, MD Montgomery Co. United States	Fairland Rd. / Brahms Ave. / (parking) (39.07126, -76.95403)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.2920	Other (At-Grade) Multilane (2 Lane, unspecified)	2008
Calverton, MD Montgomery Co. United States	Fairland Rd. / Marlow Farm Terr. / Musgrove Rd. (39.07004, -76.95264)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2008
Calverton, MD Montgomery Co. United States	Fairland Rd. / Galway Dr. (39.06594, -76.94436)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.0040	Other (At-Grade) Single-Lane	2008
Gaithersburg, MD Montgomery Co. United States	Washingtonian Blvd. / Rio Blvd. (39.11678, -77.20122)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Multilane (2 Lane, unspecified)	1998	Year Completed estimated (1993-2002).
Gaithersburg, MD Montgomery Co. United States	Washingtonian Blvd. / Washington Blvd. (39.11773, -77.20314)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Other (At-Grade) Multilane (2 Lane, unspecified)	1998	Year Completed estimated (1993-2002).
(unincorporated), TX Montgomery Co. United States	Northgrove Pkwy. / Hufsmith Conroe Rd. (30.14894, -95.59330)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 83.8200	Other (At-Grade) Multilane (2 Lane, unspecified)	2016
Montgomery, AL Montgomery Co. United States	Aum Dr. / Brown Springs Rd. (32.37307, -86.17992)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2011-2013).
Olney, MD Montgomery Co. United States	Old Baltimore Rd. / Bishops Castle Dr. (39.14878, -77.04958)	Traffic Calming Circle Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Unknown Single-Lane	2019	Painted splitter islands on major street; no splitter islands on side street.
Burtonsville, MD Montgomery Co. United States	Bentley Park Dr. / Saddle Creek Dr. (39.09674, -76.91863)	Other Existing	Unknown Unknown	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Wheaton-Glenmont, MD Montgomery Co. United States	Redspire Dr. / Tivoli Lake Blvd. (39.07315, -77.03208)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Wheaton-Glenmont, MD Montgomery Co. United States	Foggy Glen Dr. / Soaring Wing Ln. (39.08128, -77.02998)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Wheaton-Glenmont, MD Montgomery Co. United States	Poplar Run Dr. / Night Sky Dr. / Moonlight Trail Dr. (39.07862, -77.03729)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Potomac, MD Montgomery Co. United States	Brickyard Rd. / Hackamore Dr. (38.98567, -77.21274)	Traffic Calming Circle Existing	One-Way/Two-Way Stop Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Potomac, MD Montgomery Co. United States	Brickyard Rd. / Horseshoe Ln. (38.99291, -77.21195)	Traffic Calming Circle Existing	One-Way/Two-Way Stop Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Potomac, MD Montgomery Co. United States	Brickyard Rd. / Brent Rd. (38.99900, -77.22362)	Traffic Calming Circle Existing	One-Way/Two-Way Stop Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Montgomery, AL Montgomery Co. United States	Dexter Ave. / Commerce St. / S Court St. (32.37737, -86.30919)	Other Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 30.2597	Other (At-Grade) Single-Lane		Parking along the outer circle; sidewalk around the centtral island. ICD estimated from Google Maps linework.
McBryde, VA Montgomery Co. United States	Broce Dr. / Lora Ln. (37.23783, -80.43405)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 1 Driveways 20.9185	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Northside Park, VA Montgomery Co. United States	Givens Ln. / Northside Dr. (37.25358, -80.41898)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 33.2725	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Blacksburg, VA Montgomery Co. United States	Givens Ln. / Progress St. NW (37.25246, -80.42250)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 30.4210	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Blacksburg, VA Montgomery Co. United States	Edge Way / Orchard St. (37.23517, -80.42447)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 30.4280	Other (At-Grade) Single-Lane	2014	No splitter islands on three legs. ICD estimated from Google Maps linework.
Blacksburg, VA Montgomery Co. United States	Southgate Dr. / Duck Pond Dr. / Dairy Dr. (37.21647, -80.42360)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 33.2889	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Blacksburg, VA Montgomery Co. United States	Southgate Dr. / Research Center Dr. (37.21281, -80.42500)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 45.6555	Other (At-Grade) Single-Lane	2017	Through bypass lane on north leg. Right-turn bypass lane on south leg. ICD estimated from Google Maps linework.
Clarksburg, MD Montgomery Co. United States	Little Seneca Pkwy. / Snowden Farm Pkwy. (39.22989, -77.25280)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.6795	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	Year Completed estimated (2011-2013). ICD estimated from Google Maps linework.
Clarksburg, MD Montgomery Co. United States	Snowden Farm Pkwy. / Winding Woods Way (39.22604, -77.24727)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.7086	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	Year Completed estimated (2011-2013). ICD estimated from Google Maps linework.
Clarksburg, MD Montgomery Co. United States	Little Seneca Pkwy. / Meadow Mist Rd. (39.23154, -77.24309)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.5290	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Gaithersburg, MD Montgomery Co. United States	Victory Farm Dr. / Girard St. (39.14648, -77.18493)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.9348	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Year Completed estimated (2005-2006). ICD estimated from Google Maps linework.
Clarksburg, MD Montgomery Co. United States	Clarksburg Rd. (MD 121) / (outlet mall entrance) (39.22844, -77.28869)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 49.9588	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	ICD estimated from Google Maps linework.
Clarksburg, MD Montgomery Co. United States	Clarksburg Rd. (MD 121) / Cabin Branch Ave. (39.22689, -77.29051)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 46.2592	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	ICD estimated from Google Maps linework.
Bethesda, MD Montgomery Co. United States	Bradmoor Dr. / Roosevelt St. (38.99427, -77.11925)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.3360	Other (At-Grade) Single-Lane	2017	Year Completed estimated (2016-2018).
Burtonsville, MD Montgomery Co. United States	Dustin Rd. / US 29 SB Offramp / Columbia Pike (39.12256, -76.92656)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.5482	Freeway Ramps (Grade-Separated) Single-Lane	2006	Fatal crash October 14, 2007.: http://www.fredericknewspost.com/sections/news/display.htm?StoryID=66411. 11861-05. ICD estimated from Google Maps linework.
Gaithersburg, MD Montgomery Co. United States	Kentlands Blvd. / Main St. (39.12333, -77.23855)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Multilane (2 Lane, 2x1 max)	1994	Year Completed estimated (1993-2002).
Gaithersburg, MD Montgomery Co. United States	Kentlands Blvd. / Market St. (39.12309, -77.23489)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1480	Other (At-Grade) Multilane (2 Lane, 2x1 max)	1994	Year Completed estimated (1993-2002).
Gaithersburg, MD Montgomery Co. United States	Orchard Ridge Dr. / Mill Green Ave. (39.12559, -77.22635)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.9872	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	ICD estimated from Google Maps linework.
Gaithersburg, MD Montgomery Co. United States	Winter Walk Dr. / Highland Ridge Ave. (39.12807, -77.22692)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.2800	Other (At-Grade) Single-Lane	1998	Year Completed estimated (1993-2002). Was cul-de-sac prior to addition of two more legs. ICD estimated from Google Maps linework.
Blacksburg, VA Montgomery Co. United States	Washington St. / Campus Dr. / Stadium Rd. (37.22169, -80.42204)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 62.7690	Other (At-Grade) Single-Lane	2005	On the campus of Virginia Tech. ICD estimated from Google Maps linework.
Lower Frederick Township, PA Montgomery Co. United States	SR 29 (Gravel Pike) / SR 73 (Big Rd.) (40.27733, -75.48040)	Roundabout Existing	All-Way Yield None	3 Approaches 3 Driveways 46.4703	Other (At-Grade) Single-Lane	2008	Asphalt construction. Design for future multilane retrofit. Previously controlled by flashing beacon Functional Class: Principal Arterial ICD estimated from Google Maps linework.
Montgomery, AL Montgomery Co. United States	Washington Ave. / S. Bainbridge St. (32.37648, -86.30121)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 18.1560	Other (At-Grade) Single-Lane	2008	Opened July 2008. ICD estimated from Google Maps linework.
Montgomery, AL Montgomery Co. United States	S. Ripley St. / Washington Ave. (32.37658, -86.29808)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 14.1213	Other (At-Grade) Single-Lane	2008	Opened April 2008. ICD estimated from Google Maps linework.
Montgomery, AL Montgomery Co. United States	University Dr. / East Dr. / (parking lot) (32.36779, -86.17373)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.3593	Other (At-Grade) Single-Lane	2010	Entrance to Auburn University Montgomery (AUM). Year completed estimated (2008-2011). ICD estimated from Google Maps linework.
Miamisburg, OH Montgomery Co. United States	Austin W Blvd. / Automation Way (39.59850, -84.24378)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways 44.1728	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Kettering, OH Montgomery Co. United States	Forrer Blvd. / Madison St. (39.71565, -84.14854)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 51.4476	Other (At-Grade) Multilane (2 Lane, unspecified)	1996	ICD estimated from Google Maps linework.
Magnolia, TX Montgomery Co. United States	Magnolia Ridge Blvd. / Jewett Meadow Dr. / Rogerdale River Dr. (30.21121, -95.73470)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, 2x1 max)
Gaithersburg, MD Montgomery Co. United States	Perry Pkwy. / (parking) (39.14899, -77.21048)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.2440	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2004	Year Completed estimated (2002-2005).
Redland, MD Montgomery Co. United States	Columbus Ave. / Gramercy Blvd. (39.12362, -77.16494)	Other Existing	All-Way Stop Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
King Farm, MD Montgomery Co. United States	Pleasant Circle (39.11623, -77.17518)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		Pedestrian access to central island.
Potomac, MD Montgomery Co. United States	10600 Morning Field Dr. / Sunny Brooke Ln. / Sunny Brooke Pl. (39.07423, -77.21561)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Potomac, MD Montgomery Co. United States	Broad Green Dr. / Clagett Farm Dr. (39.04566, -77.19669)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Potomac, MD Montgomery Co. United States	Larkmeade Ln. / Bells Ridge Dr. (39.03483, -77.16775)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Derwood, MD Montgomery Co. United States	Achille Ln. / Heartwood Dr. (39.12925, -77.11543)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Derwood, MD Montgomery Co. United States	Heartwood Dr. (39.13239, -77.11434)	Other Existing	Unknown Unknown	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Derwood, MD Montgomery Co. United States	Coppelia Dr. / Toboggan Ln. (39.13566, -77.11938)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Olney, MD Montgomery Co. United States	Martins Dairy Cir. / Old Baltimore Rd. (39.13345, -77.07382)	Other Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Painted splitter islands.
Wheaton, MD Montgomery Co. United States	Park Vista Dr. / Wintergate Dr. / Longmeade Crossing Dr. (39.10755, -77.05340)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2020	Painted splitter islands added 2020.
Ashton, MD Montgomery Co. United States	Harbour Town Dr. / Grand Cypress Ct. (39.13205, -77.00407)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Woodbourne-Hyde Park, OH Montgomery Co. United States	Mad River Rd. / W Alex Bell Rd. (39.65510, -84.19420)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://www.whio.com/news/local/washington-twp-roundabout-set-open-within-next-week/JEWIGLMTEBBDXJ3PZ2QO3ILVQ4/
Montgomery, AL Montgomery Co. United States	Taylor Lakes Pkwy. / Towering Oaks Dr. (32.31210, -86.19300)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Montgomery, AL Montgomery Co. United States	Monument Park Dr. / Chastain Park Dr. / Morning Side Park Dr. (32.30911, -86.14268)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.1960	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2008-2011).
Travilah, MD Montgomery Co. United States	Marwood Hill Dr. / Rivers Bend Ln. (39.03022, -77.23432)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Gaithersburg, MD Montgomery Co. United States	Upshire Circle (39.11353, -77.22397)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Olney, MD Montgomery Co. United States	Wickham Rd. / Broom Dr. (39.15708, -77.09362)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Olney, MD Montgomery Co. United States	Martins Dairy Cir. / Gooseneck Terrace (39.13176, -77.07439)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Germantown, MD Montgomery Co. United States	Milestone Manor Ln. / Manor View Cir. / Milestone Manor Ct. (39.20854, -77.24868)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Germantown, MD Montgomery Co. United States	Milestone Manor Ln. / Stardrift Dr. (39.20560, -77.25039)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Germantown, MD Montgomery Co. United States	Milestone Manor Ln. / Emerald Dr. (39.20479, -77.25262)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Germantown, MD Montgomery Co. United States	Milestone Manor Ln. / Royal Crown Dr. (39.20518, -77.25877)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Germantown, MD Montgomery Co. United States	Pickering Dr. / Pickering Pl. (39.18854, -77.27173)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Germantown, MD Montgomery Co. United States	Club Hill Dr. / Thackery Pl. (39.18531, -77.27012)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Germantown, MD Montgomery Co. United States	Kildale Hills Terrace / Galway Bay Cir. (39.17826, -77.27643)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Chevy Chase, MD Montgomery Co. United States	Rosemary Circle [Rosemary St. / Hillcrest Pl. / Stanford St.] (38.97789, -77.08055)	Other Existing	All-Way Stop Unknown	5 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Parking along circulatory roadway.
Mount Sterling, KY Montgomery Co. United States	Indian Mound Dr. / Spencer Pike (38.05454, -83.91678)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	Year Completed estimated (2021-2022).
New Florence, MO Montgomery Co. United States	MO 19 / Tree Farm Rd. / I-70 EB Ramps (38.89821, -91.45624)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2023	https://www.modot.org/node/35298
New Florence, MO Montgomery Co. United States	MO 19 / Booneslick Rd. / I-70 WB Ramps (38.90090, -91.45707)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2023	https://www.modot.org/node/35298 Combined freeway interchange with at-grade intersection. Previously, the interchange was stop controlled and the intersection had traffic lights.
Conroe, TX Montgomery Co. United States	Harpers Way / Preserve Way (30.19869, -95.44163)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2022	Single-stage pedestrian crossings.
Conroe, TX Montgomery Co. United States	Preserve Way / Harpers Trace (30.19433, -95.42699)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 42.6720	Other (At-Grade) Single-Lane	2019	Year Completed estimated (2018-2019).