Roundabouts Database Index

30012 Results

Search by location, intersection, and comments with the Quick Search below. You can search all other attributes by clicking Advanced Search. Sort results by clicking the headers of any column. Click the Intersection name for a details and aerial view. Search results pages can be bookmarked. Results can be exported to KML for viewing in Google Earth.

City, State County Country	Intersection (Lat, Lng)	Type Status	Control Type / Other Control Type	Approaches / Driveways / ICD (m)	Functional Class / LaneType	Year Completed	Comments
South Yarmouth, MA Barnstable Co. United States	Wampanoag Rd. / Eldridge Rd. (41.64863, -70.21542)	Traffic Calming Circle Existing	Uncontrolled None	4 Approaches 0 Driveways 39.2675	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Dennis, MA Barnstable Co. United States	Davis Beach Rd. / Lighthouse Rd. / Loring Ave. (41.65225, -70.17300)	Rotary Existing	Uncontrolled None	4 Approaches 0 Driveways 40.1577	Other (At-Grade) Single-Lane		Stop control on the Davis Beach driveway ICD estimated from Google Maps linework.
Mashpee, MA Barnstable Co. United States	Rock Landing Rd. / Cross Rd. / Greensward Rd. (41.57286, -70.47406)	Traffic Calming Circle Existing	Other Unknown	4 Approaches 0 Driveways 55.3965	Other (At-Grade) Single-Lane		Private roads. Mixed Stop-controlled and free-merge. ICD estimated from Google Maps linework.
Mashpee, MA Barnstable Co. United States	Triton Sound Circle / Troon Way / Greenwards Rd. / Shore Dr. West / Landmark Ave. (41.56210, -70.47509)	Traffic Calming Circle Existing	All-Way Stop Unknown	5 Approaches 0 Driveways 57.1930	Other (At-Grade) Single-Lane		On private roads ICD estimated from Google Maps linework.
Hyannis, MA Barnstable Co. United States	Bearses Way / Basset Lane (41.65436, -70.29148)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.8786	Other (At-Grade) Single-Lane	2009	crosswalks on all approaches ICD estimated from Google Maps linework.
Eastham, MA Barnstable Co. United States	Eastham Rotary (US 6 / Rte 6A / Smith Ln.) (41.79887, -69.98398)	Rotary Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 151.3610	Other (At-Grade) Single-Lane		Commonly known as "the Eastham rotary" ICD estimated from Google Maps linework.
Orleans, MA Barnstable Co. United States	Rte 6A (Cranberry Hwy) / Canal Rd / S Orleans Rd. (41.79212, -69.98671)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 29.3849	Other (At-Grade) Multilane (2 Lane, unspecified)	2014	ICD estimated from Google Maps linework.
Provincetown, MA Barnstable Co. United States	Province Lands Rd. / Commercial St. (42.03714, -70.19657)	Other Existing	All-Way Yield None	2 Approaches 1 Driveways 51.4484	Other (At-Grade) Single-Lane		The center island is the Pilgrims' First Landing Park, which commemorates the location where the Mayflower first landed in the New World in 1620. ICD estimated from Google Maps linework.
Bourne, MA Barnstable Co. United States	US 6 (Rte 3) / Scenic Hwy (41.78067, -70.54342)	Rotary Removed	All-Way Yield Unknown	4 Approaches 4 Driveways 26.7184	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	Rotary replaced with an interchange. ICD estimated from Google Maps linework.
South Yarmouth, MA Barnstable Co. United States	River St / Pleasant St (41.65652, -70.19715)	Traffic Calming Circle Existing	Uncontrolled None	3 Approaches 2 Driveways 36.5857	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Barnstable, MA Barnstable Co. United States	Meetinghouse Way (Rte 149) / US 6 EB / Service Rd. (41.69544, -70.38519)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.4815	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2012	ICD estimated from Google Maps linework.
Chatham, MA Barnstable Co. United States	Main St. / Barn Hill Rd. (41.68246, -69.99174)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2020	Year Completed estimated (2019-2021).
South Yarmouth, MA Barnstable Co. United States	Edgewater Dr. (41.68404, -70.16354)	Other Existing	Unknown Unknown	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Orleans, MA Barnstable Co. United States	Rte 28 (S Orleans Rd.) / Rte 39 (Harwich Rd.) / Quanset Rd. (41.75145, -69.99094)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2023	https://capecodchronicle.com/articles/439/view
Wombwell, England Barnsley United Kingdom	Broomhill Roundabout [A6195 / A633 (Manvers Way) / Highgate] (53.51656, -1.36841)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Darfield, England Barnsley United Kingdom	Cathill Roundabout [A635 (Doncaster Rd.) / A6195 (Dearne Valley Pkwy. - Rotherham Rd.)] (53.53364, -1.35406)	Unknown Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Goldthorpe, England Barnsley United Kingdom	Hollygrove Roundabout [A635 (Barnsley Rd. - Dearne Valley Pkwy.) / Barnsley Rd. / Dudley Dr. / (parking)] (53.53285, -1.32482)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Barnsley, England Barnsley United Kingdom	Townend Roundabout [A628 (Dodworth Rd. - West Way) / Shambles St. / Racecommon Rd. / Summer Ln. / Peel St.] (53.55205, -1.48726)	Roundabout Existing	All-Way Yield None	6 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Barnsley, England Barnsley United Kingdom	Alhambra Roundabout [A628 (Harborough Hill Rd. - West Way) / A61 (Sheffield Rd.) / Wesley St.] (53.55038, -1.47731)	Roundabout Existing	All-Way Yield Metering Signal	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		Pedestrian tunnels under circulatory roadway through central island.
Voorthuizen, Gelderland Barneveld Netherlands	r101 (Heuvelrandweg) / Rubensstraat (52.19307, 5.60786)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Voorthuizen, Gelderland Barneveld Netherlands	N344 (Apeldoornsestraat) / r101 (Heuvelrandweg) (52.18990, 5.62120)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Voorthuizen, Gelderland Barneveld Netherlands	Hoofdstraat / Rembrandtstraat (52.18535, 5.60331)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Voorthuizen, Gelderland Barneveld Netherlands	Baron van Nagellstraat / Holzenboschlaan (52.17842, 5.59724)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Terschuur, Gelderland Barneveld Netherlands	N301 (Zelderseweg) / Rijksweg (52.17110, 5.55702)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Barnaul, Altai Krai Barnaul Russia	ulitsa Malakhova / ulitsa Yurina (53.36775, 83.70734)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Trams through central island.
Barnaul, Altai Krai Barnaul Russia	Pavlovskiy trakt / ulitsa Malakhova Ramps (53.34191, 83.69531)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Unknown
Barnaul, Altai Krai Barnaul Russia	ulitsa Malakhova / ulitsa Antona Petrova (53.35959, 83.70068)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Trams through central island.
Barnaul, Altai Krai Barnaul Russia	ulitsa Malakhova / Vlasikhinskaya ulitsa (53.32730, 83.69210)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Barnaul, Altai Krai Barnaul Russia	A349 / poselok Sibirskiy Sadovod SNT (53.26871, 83.72848)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, 2x2 max)
Barcs, Somogy Barcsi járás Hungary	E661-SR 68 (Köztársaság utca - Erkel Ferenc utca) / Bajcsy-Zsilinszky Endre utca (45.95924, 17.46679)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Badalona, Catalonia Barcelona Spain	Avenida de Pomar / Carretera de Pomar / Calle del Torrente de Vallmajor / Avenida de Sabadell / Carrer Masnou / Carrer Malgrat de Mar (41.46580, 2.25316)	Roundabout Existing	All-Way Yield Metering Signal	7 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Montgat, Catalonia Barcelona Spain	Calle de San Antonio María Claret / Carretera de Tiana / Calle de Guixeres (41.46405, 2.26831)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Viladecans, Catalonia Barcelona Spain	Cami del Mar / C-31 (Autovia de Castelldefels) Ramps / Camí dels Llanossos (41.27842, 2.05252)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)
Viladecans, Catalonia Barcelona Spain	Cami del Mar / C-31 (Autovia de Castelldefels) Ramps / Camí dels Llanossos (41.28101, 2.05028)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)
Granollers, Catalonia Barcelona Spain	Carretera Ronda Sud / Calle de Lluís Companys (41.59762, 2.28221)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
El Masnou, Catalonia Barcelona Spain	Avenida de Juan XXIII / Avenida de la Virgen del Pilar / Calle del Pintor Marià Fortuny / Calle de San Crispín (41.48281, 2.31147)	Other Existing	All-Way Yield None	5 Approaches 0 Driveways	Other (At-Grade) Single-Lane		Pedestrian access to central island.
Molins de Rei, Catalonia Barcelona Spain	Calle del Pla / Calle de la Huerta (41.39496, 2.02982)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Molins de Rei, Catalonia Barcelona Spain	B-23-E90 / Carretera de Torrelles (connector to BV 2005) (41.39363, 2.02575)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)
Mataró, Catalonia Barcelona Spain	Rotonda de les Hortes del Camí Ral [Carretera de Barcelona / Calle Remallaire / Calle de Caldes de Estrac] (41.52704, 2.43163)	Roundabout Existing	All-Way Yield None	6 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		Boulevard and its frontage roads have separate entries.
Sabadell, Catalonia Barcelona Spain	Avenida del Alcalde Moix / Carretera de Prats de Lluçanès / Calle del Puig de la Creu (41.56651, 2.10027)	Signalized Roundabout/Circle Existing	Signal None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Rubí, Catalonia Barcelona Spain	C1413a (Carretera de Molins de Rei) / Pont de Cova Solera / Calle de Edison (41.48314, 2.03004)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
L'Hospitalet de Llobregat, Catalonia Barcelona Spain	Rambla de la Marina / Travessia Industrial (41.35307, 2.10703)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Pedestrian access to central island.
Lower Plenty, VIC Banyule Australia	SR 44 (Main Rd.) / SR 47 (Fitzsimons Ln.) (-37.73310, 145.13739)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Ivanhoe, VIC Banyule Australia	Oriel Rd. / Banksia St. (-37.75641, 145.03783)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Pocatello, ID Bannock Co. United States	Hurley Dr. / Pole Line Rd. (42.90782, -112.46041)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.1149	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	ICD estimated from Google Maps linework.
Chubbuck, ID Bannock Co. United States	N Hiline Rd. / Mallard St. (42.91435, -112.45179)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.2383	Other (At-Grade) Multilane (2 Lane, unspecified)	2010	Year Completed estimated (2009-2011). ICD estimated from Google Maps linework.
Chubbuck, ID Bannock Co. United States	E Chubbuck Rd. / Sacajawea Dr. (42.92042, -112.44502)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.2351	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Chubbuck, ID Bannock Co. United States	Mesquite Dr. / Parklawn Dr. / (parking) (42.92905, -112.46794)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2006-2009).
Pocatello, ID Bannock Co. United States	Olympus Dr. / Northgate Pkwy. / E Siphon Dr. (42.92794, -112.42884)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 57.9120	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2018	Concentric striped circulatory roadway with dotted edge line around entire circumference. No splitter island on east leg. Year Completed estimated (2017-2019).
Chubbuck, ID Bannock Co. United States	Chubbuck Rd. / Philbin Rd. (42.92054, -112.49601)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://localnews8.com/news/idaho/2022/04/11/philbin-chubbuck-road-intersection-to-close-for-roundabout-installation/
(unincorporated), GA Banks Co. United States	GA 59 / GA 63 (34.29408, -83.40714)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	Replaced triangular intersection. Year Completed estimated (2021-2022).
Commerce, GA Banks Co. United States	GA 59 / Segars Rd. (34.29473, -83.39858)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2021	https://accesswdun.com/article/2021/2/980363/new-ga-59-roundabout-will-facilitate-safe-travel-near-new-industries
Banjarmasin Utara, South Kalimantan Banjarmasin Indonesia	AH150 (Jalan Brigadir Jenderal Hasan Basri) / Jalan Adhyaksa / Jalan Perdagangan (-3.28937, 114.58947)	Unknown Existing	Uncontrolled None	4 Approaches 0 Driveways	Other (At-Grade) Unknown
Central Banjarmasin, South Kalimantan Banjarmasin Indonesia	Jalan Suprapto / Jalan Merdeka / Jalan MT Haryono (-3.32059, 114.59036)	Other Existing	Uncontrolled None	3 Approaches 0 Driveways	Other (At-Grade) Unknown
Central Banjarmasin, South Kalimantan Banjarmasin Indonesia	AH150 (Jalan S Parman - Jalan Asf Mustaffa) / Jalan Suprapto (-3.31669, 114.59014)	Unknown Existing	Unknown None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Banja Luka, Serb Republic Banja Luka Bosnia and Herzegovina	E661 (Krajiških brigade) / R405 (Karađorđeva) / Bulevar Cara Dušana (44.77135, 17.18159)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Prijedor, Serb Republic Banja Luka Bosnia and Herzegovina	M15 (Kralja Petra 1. Oslobodioca - Akademika Jovana Raškovića) / Petra Petrovića Njegoša / Vidovdanska (44.98011, 16.71236)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Prijedor, Serb Republic Banja Luka Bosnia and Herzegovina	M15 (Kralja Petra 1. Oslobodioca - Kozarska) / 29. Novembra / Knežopoljska (44.98133, 16.71615)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Prijedor, Serb Republic Banja Luka Bosnia and Herzegovina	M4 (Svale) / 29. Novembra (44.97999, 16.71742)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Kozarska Dubica, Serb Republic Banja Luka Bosnia and Herzegovina	Vidovdanska / Mihajla Pupina / Vojvode Putnika (45.18022, 16.81033)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Banja Luka, Serb Republic Banja Luka Bosnia and Herzegovina	Knjaza Miloša / Ivana Gorana Kovacica (44.78744, 17.20575)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, 2x2 max)
Banja Luka, Serb Republic Banja Luka Bosnia and Herzegovina	Trive Amelice / Dr Mladena Stojanovica (44.78446, 17.20376)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Banja Luka, Serb Republic Banja Luka Bosnia and Herzegovina	E661 / Ivana Gorana Kovacica / Marije Dimic (44.79064, 17.19908)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, 2x2 max)
Banja Luka, Serb Republic Banja Luka Bosnia and Herzegovina	Bulevar Srpske Vojske / Olimpijskih pobjednika (44.77883, 17.20638)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, 2x2 max)
Banja Luka, Serb Republic Banja Luka Bosnia and Herzegovina	Bulevar vojvode Petra Bojovića / Bulevar vojvode Stepe Stepanovića (44.76639, 17.20923)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, 2x2 max)
Banja Luka, Serb Republic Banja Luka Bosnia and Herzegovina	Skendera Kulenovića / Isaije Mitrovića / Kralja Petra Prvog Karadordevića / Solunska (44.76501, 17.18431)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane		Peanut shaped.
Banja Luka, Serb Republic Banja Luka Bosnia and Herzegovina	Isaije Mitrovića / Cara Lazara / Teodora Kolokotronisa / Patre (44.76588, 17.18785)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Biloela, QLD Banana Australia	SR 60 (Dawson Hwy.) / Valley View Dr. (-24.38643, 150.52555)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Perry Hall, MD Baltimore Co. United States	E Joppa Rd. / Scott Moore Way / Cowenton Ave. (39.40290, -76.44124)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2008	Right-turn bypass lane on west leg.
Perry Hall, MD Baltimore Co. United States	Scott Moore Way / Honeygo Center Dr. (39.40491, -76.44142)	Other Existing	All-Way Yield Unknown	3 Approaches 1 Driveways 0.0000	Other (At-Grade) Single-Lane		Pedestrian access to central island.
Perry Hall, MD Baltimore Co. United States	Georgia Belle Dr. / Fragrence Way / Harcrest Way (39.40467, -76.42700)	Other Existing	All-Way Yield Unknown	4 Approaches 4 Driveways 0.0000	Other (At-Grade) Single-Lane
Cockeysville, MD Baltimore Co. United States	Lord Byron Ln. / Duke of York Ln. (39.46487, -76.63164)	Other Existing	Unknown Unknown	3 Approaches 1 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Dulaney Forest, MD Baltimore Co. United States	E Ridgely Rd. / Margate Rd. (39.43199, -76.60754)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways 19.8120	Other (At-Grade) Single-Lane	2013	No raised splitter islands on side street. Year Completed estimated (2012-2014).
Owings Mills, MD Baltimore Co. United States	Ballard Green Dr. / Wilson Shannon Dr. / Julia Ln. (39.39162, -76.80439)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2017	Year Completed estimated (2017-2018).
Reisterstown, MD Baltimore Co. United States	Worthington Ave. / Greenspring Ave. / Tufton Ave. (39.47691, -76.76508)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.1095	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	ICD estimated from Google Maps linework.
Kingsville, MD Baltimore Co. United States	MD 147 (Harford Rd.) / Glen Arm Rd. / Mt Vista Rd. (39.46045, -76.45652)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0397	Other (At-Grade) Single-Lane	2018	https://www.baltimoresun.com/maryland/harford/aegis/ph-ag-harford-road-roundabout-20180102-story.html ICD estimated from Google Maps linework.
Towson, MD Baltimore Co. United States	MD 45 / MD 146 / Joppa Rd. / Allegheny Ave. (39.40185, -76.60230)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 47.9892	Other (At-Grade) Multilane (2 Lane, unspecified)	1998	Opened October 1998. Exit striping retrofitted to roundabout after opening. Hotdog/racetrack shape. ICD estimated from Google Maps linework. 21442
Catonsville, MD Baltimore Co. United States	MD 372 / Hilltop Rd. / Entrance to UMBC (39.25733, -76.71964)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.1417	Other (At-Grade) Single-Lane	1998	Functional Class: Collector ICD estimated from Google Maps linework.
Lutherville-Timonium, MD Baltimore Co. United States	MD 139 (Charles St.) / Bellona Ave. (39.41790, -76.62900)	Roundabout Removed	All-Way Yield None	4 Approaches 0 Driveways 28.9560	Other (At-Grade) Multilane (2 Lane, unspecified)	1999	Two-lane circulatory roadway across northern half.
Catonsville, MD Baltimore Co. United States	UMBC Blvd. / Research Park Dr. (39.24874, -76.71580)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.3950	Other (At-Grade) Single-Lane	2015	Elliptical shape. ICD estimated from Google Maps linework.
Catonsville, MD Baltimore Co. United States	Hilltop Cir. / UMBC Blvd. (39.25178, -76.71442)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways 60.1156	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	Lane changes needed for some through movements. ICD estimated from Google Maps linework.
Windsor Mill, MD Baltimore Co. United States	Lord Baltimore Dr. / Wildlife Dr. (39.31993, -76.75019)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 14.7833	Other (At-Grade) Single-Lane	1998	Year Completed estimated (1993-2002). ICD estimated from Google Maps linework.
Windsor Mill, MD Baltimore Co. United States	Lord Baltimore Dr. / Glen Spring Rd. / Kettle Ct. (39.31750, -76.75152)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 17.5558	Other (At-Grade) Single-Lane	1998	Year Completed estimated (1993-2002). ICD estimated from Google Maps linework.
Dundalk, MD Baltimore Co. United States	Dundalk Ave. / Sollers Point Rd. (39.24534, -76.50786)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.9734	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Essex, MD Baltimore Co. United States	Southeast Blvd. (MD 702) / Hyde Park Rd. (39.29884, -76.43951)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.6663	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Built as temporary installation, then converted to permanent design. ICD estimated from Google Maps linework.
Owings Mills, MD Baltimore Co. United States	Tollgate Rd. / Lastgage Rd. (39.42149, -76.78482)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.6010	Other (At-Grade) Single-Lane	2004	ICD estimated from Google Maps linework.
Catonsville, MD Baltimore Co. United States	Edmundson Avenue / Old Frederick Road (39.27533, -76.76612)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 20.3400	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Owings Mills, MD Baltimore Co. United States	Upper Mill Dr. / Bluestem Ct. /Spring Willow Ct. / Bayline Cir. (39.41253, -76.82032)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Owings Mills, MD Baltimore Co. United States	Grand Central Ave. / (parking) (39.40581, -76.78033)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Other (At-Grade) Multilane (2 Lane, unspecified)	2014	Year Completed estimated (2011-2014).
Owings Mills, MD Baltimore Co. United States	Grand Central Ave. / Waverly Ln. (39.40713, -76.78413)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2014	Year Completed estimated (2011-2014). West leg added 2015.
Villages of Winterset, MD Baltimore Co. United States	Runnymeade Rd. / New Town Blvd. / Bon Haven Ln. (39.39893, -76.81700)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Owings Mills, MD Baltimore Co. United States	New Town Blvd. / Rangeford Dr. (39.40957, -76.80654)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Pikesville, MD Baltimore Co. United States	Travertine Dr. (39.38721, -76.68990)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		Parking along circulatory roadway; pedestrian access to central island.
Owings Mills, MD Baltimore Co. United States	Painters Mill Rd. / Lyons Mill Rd. (39.39425, -76.78747)	Other Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)
Catonsville, MD Baltimore Co. United States	Research Park Dr. (39.24868, -76.71406)	Other Existing	Uncontrolled Unknown	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Catonsville, MD Baltimore Co. United States	Hidden Bludd Cir. / Jacks Ct. (39.25966, -76.71926)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Reisterstown, MD Baltimore Co. United States	Long Ridge Rd. / Barto Ln. (39.47055, -76.73195)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Pedestrian access to central island.
Reisterstown, MD Baltimore Co. United States	Winged Foot Dr. / Crystal Downs Ct. / Kauri Cliffs Rd. (39.42897, -76.81445)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
White Marsh Station, MD Baltimore Co. United States	Carrington Dr. / Jerome Ave. (39.40574, -76.40236)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Perry Hall, MD Baltimore Co. United States	Seven Courts Dr. / Proctor Ln. (39.41060, -76.48483)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2007-2008).