Roundabouts Database Index

30320 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
Basingstoke, England Hants United Kingdom	Old Common Rd. / London Rd. / Barbel Ave. (51.26326, -1.06915)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Basingstoke, England Hants United Kingdom	Roentgen Rd. / (parking) (51.27254, -1.06136)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane		No splitter islands.
Basingstoke, England Hants United Kingdom	Daneshill Roundabout [Gresley Rd. / Faraday Rd. / Wade Rd. / Swing Swang Ln.] (51.27587, -1.06685)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Lychpit, England Hants United Kingdom	Great Binfields Rd. / Broadhusrt Grove / Olivers Walk (51.27433, -1.05762)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Little Basing, England Hants United Kingdom	Great Binfields Rd. / Harvest Way / Higher Mead (51.27737, -1.05767)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Chineham, England Hants United Kingdom	Binfields Roundabout [A33 / Great Binfields Rd. / (unknown)] (51.28575, -1.06110)	Signalized Roundabout/Circle Existing	Signal Unknown	5 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Chineham, England Hants United Kingdom	Thornhill Way / Reading Rd. (51.29011, -1.05359)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Sherfield on Loddon, England Hants United Kingdom	Taylors Farm Roundabout [A33 / Gaiger Ave.] (51.30121, -1.04247)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Sherfield on Loddon, England Hants United Kingdom	Gaiger Ave. / Rockbourne Rd. (51.30258, -1.04560)	Roundabout Existing	All-Way Yield Unknown	2 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Hook, England Hants United Kingdom	Amport Rd. / Sunwood Dr. (51.30322, -1.05095)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane		No splitter islands on two legs.
East Hants, NS Hants Canada	Hwy 14 E / County 224 / Hwy 102 EB ramps (45.05516, -63.44175)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 40.4978	Freeway Ramps (Grade-Separated) Single-Lane	2008	Year Completed estimated (2005-2011). ICD estimated from Google Maps linework.
East Hants, NS Hants Canada	Hwy 14 / Hwy 102 SB (45.05648, -63.44497)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.0000	Freeway Ramps (Grade-Separated) Single-Lane	2008	Year Completed estimated (2005-2011).
Windsor, NS Hants Canada	Wentworth Rd. / Highway 101 NB Ramps / Morrison Dr. (44.99165, -64.11267)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 51.5231	Freeway Ramps (Grade-Separated) Single-Lane	2009	ICD estimated from Google Maps linework.
Haparanda, Norrbotten County Haparanda Sweden	Skrittvägen / Stallvägen (65.84143, 24.11399)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 15.1526	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Haparanda, Norrbotten County Haparanda Sweden	E4 / Skrittvägen (65.84016, 24.11509)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 50.8372	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Haparanda, Norrbotten County Haparanda Sweden	Rte 99 / Ahlmarksvägen / Norrskensvägen (65.84498, 24.12435)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 35.1884	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Haparanda, Norrbotten County Haparanda Sweden	R4 / Rte 99 / Västra Esplanaden (65.84181, 24.12765)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 88.4706	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Haparanda, Norrbotten County Haparanda Sweden	Västra Esplanaden / Norra Esplanaden (65.83886, 24.12855)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 22.9757	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Haparanda, Norrbotten County Haparanda Sweden	Köpmansgatan / Västra Esplanaden (65.83508, 24.12959)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 26.4014	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Haparanda, Norrbotten County Haparanda Sweden	E4 / Krannigatan / Storgatan (65.84172, 24.13497)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 40.5695	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Haparanda, Norrbotten County Haparanda Sweden	Krannigatan / Krannikatu (65.84268, 24.13522)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 19.5508	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Haparanda, Norrbotten County Haparanda Sweden	Köpmansgatan / Torgatan (65.83543, 24.13655)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 14.6673	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Haparanda, Norrbotten County Haparanda Sweden	Storgatan / Fredsgatan (65.84039, 24.13747)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 24.9296	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Haparanda, Norrbotten County Haparanda Sweden	E4 / Fredsgatan (65.84153, 24.13793)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 1 Driveways 39.1034	Other (At-Grade) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Nan'gang District, Heilongjiang Harbin China	Wenming St. / Wenchang St. / Wenfu St. (45.74389, 126.65536)	Signalized Roundabout/Circle Existing	Signal Unknown	5 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)
Songbei District, Heilongjiang Harbin China	Shimao Blvd. / Songbeiyi Rd. / G202 Ramps (45.80664, 126.55306)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (3+ Lane)
Harderwijk, Gelderland Harderwijk Netherlands	Deventerweg / De Wittenhagen / Nassaulaan (52.33598, 5.63477)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Harderwijk, Gelderland Harderwijk Netherlands	Deventerweg / Hertog Reinoudlaan (52.33857, 5.63203)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Harderwijk, Gelderland Harderwijk Netherlands	Hoofdweg / Vondellaan / Parkweg (52.34298, 5.62961)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Harderwijk, Gelderland Harderwijk Netherlands	Verkeersweg / Selhorstweg / Hoofdweg (52.34540, 5.62610)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		Concentric circulatory roadway striping.
Harderwijk, Gelderland Harderwijk Netherlands	Bleek / Luttekepoortstraat / Selhorstweg / Hierdenseweg (52.34844, 5.62334)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Harderwijk, Gelderland Harderwijk Netherlands	Verkeersweg / Newtonweg / Ingenieur Leemansstraat / Alberdingk / Thijmlaan (52.34909, 5.63241)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Harderwijk, Gelderland Harderwijk Netherlands	Newtonweg / Langekamp (52.35263, 5.63766)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		Turbo roundabout.
Harderwijk, Gelderland Harderwijk Netherlands	Newtonweg / Lorentzstraat (52.35697, 5.64491)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Harderwijk, Gelderland Harderwijk Netherlands	Newtonweg / Daltonstraat (52.35887, 5.64846)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Hierden, Gelderland Harderwijk Netherlands	Zuiderzeestraatweg / Newtonweg (52.35377, 5.65321)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Hierden, Gelderland Harderwijk Netherlands	Zuiderzeestraatweg / Molenweg (52.35590, 5.67598)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Hierden, Gelderland Harderwijk Netherlands	Zuiderzeestraatweg / Bilksdam (52.35730, 5.68029)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Rineyville, KY Hardin Co. United States	KY 220 / KY 1600 / Thompson Rd. (37.75020, -85.96772)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2010	Yield-controlled right-turn lane on east leg.
Lumberton, TX Hardin Co. United States	Chapel Creek Dr. / Spring Brook Ct. (30.25542, -94.20976)	Other Existing	All-Way Stop Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Elizabethtown, KY Hardin Co. United States	Dolphin Dr. / Josale Dr. (37.71112, -85.83757)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-lane w/ Traversable Central Island	2023
Elizabethtown, KY Hardin Co. United States	New Glendale Rd. / Elizabethtown Bypass (37.67603, -85.85938)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2023
Elizabethtown, KY Hardin Co. United States	Woodland Dr. / Hill St. / Layman Ln. (37.71200, -85.87922)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 18.2880	Other (At-Grade) Single-lane w/ Traversable Central Island	2023
Elizabethtown, KY Hardin Co. United States	Public Square: US 31W (W Dixie Ave. - E Dixie Ave.) / N Main St. / S Main St. (37.69311, -85.85806)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)		Building with pedestrian access in central island; parking along circulatory roadway.
Elizabethtown, KY Hardin Co. United States	SR 251 (N Miles St.) / Beech St. (37.70240, -85.85716)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2023
Elizabethtown, KY Hardin Co. United States	SR 251 (N Miles St.) / W French St. / Pear Orchard Rd. (37.71166, -85.85296)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-lane w/ Traversable Central Island	2023
Elizabethtown, KY Hardin Co. United States	SR 251 (N Miles St.) / St James Ave. / Panther Ln. (37.70554, -85.85546)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2023
Elizabethtown, KY Hardin Co. United States	Executive Dr. / Commerce Dr. (37.71041, -85.83313)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2023	https://www.youtube.com/watch?v=wc_yP-bpdug
Elizabethtown, KY Hardin Co. United States	N Main St. / Crutcher St. (37.69577, -85.85552)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2021	https://www.wdrb.com/news/first-of-2-mini-roundabouts-opens-in-elizabethtown/article_f6754e22-c7d2-11eb-8603-df9381b56251.html
Elizabethtown, KY Hardin Co. United States	N Main St. / Poplar St. (37.69419, -85.85702)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2021	https://www.wdrb.com/news/first-of-2-mini-roundabouts-opens-in-elizabethtown/article_f6754e22-c7d2-11eb-8603-df9381b56251.html
Radcliff, KY Hardin Co. United States	Ernest R Kouma Blvd. / Cowley Crossing Ln. / Saratoga Ln. (37.78250, -85.92608)	Other Existing	Uncontrolled None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane
Cecilia, KY Hardin Co. United States	Woodland Way / Greencrest Dr. / Lombardy Dr. / Red Sunset Blvd. (37.66056, -85.94234)	Other Existing	All-Way Yield None	4 Approaches 1 Driveways 0.0000	Other (At-Grade) Single-Lane
Fort Knox, KY Hardin Co. United States	Chaffee Ave. / N Knox St. / Dixie St. (37.89491, -85.95675)	Other Existing	All-Way Yield None	5 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)		No splitter islands.
Elizabethtown, KY Hardin Co. United States	Hickory Ln. / Langley Trace (37.68904, -85.89330)	Other Existing	All-Way Yield None	3 Approaches 1 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Elizabethtown, KY Hardin Co. United States	Blue Heron Way / Freeman Lake Park Rd. (37.72353, -85.87678)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands on three legs.
Elizabethtown, KY Hardin Co. United States	SR 251 (N Miles St.) / W Poplar St. (37.69707, -85.86198)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023
Elizabethtown, KY Hardin Co. United States	KY 434 (Battle Training Rd.) / KY 251 (Shepherdsville Rd.) (37.78142, -85.85653)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown	2024	Newspaper Articles: June 2024 (Work Begins): https://www.thenewsenterprise.com/news/local/work-about-to-begin-on-another-roundabout/article_9ab1ff3c-0660-5285-9e4a-f38be708a425.html Nov. 2024 (Work Finishing Up): https://www.thenewsenterprise.com/news/local/crews-put-finishing-touches-on-roundabout/article_0de37f1d-6f6c-5628-8ace-b004be52caee.html
Giessendam, South Holland Hardinxveld-Giessendam Netherlands	Peulenlaan / Thorbeckestraat / Rijnstraat (51.82422, 4.83289)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 18.4546	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Neder-Hardinxveld, South Holland Hardinxveld-Giessendam Netherlands	Nieuweweg / Wieling / Hakgriend (51.82584, 4.84477)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 24.3593	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Giessendam, South Holland Hardinxveld-Giessendam Netherlands	Peulenlaan / A15 WB Ramps / Buitendams (51.82340, 4.80689)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 29.5280	Freeway Ramps (Grade-Separated) Single-Lane		ICD estimated from Google Maps linework.
Giessendam, South Holland Hardinxveld-Giessendam Netherlands	Sportlaan / Schapedrift / Zwijnskade (51.82574, 4.80473)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 34.6936	Other (At-Grade) Single-Lane		Kidney-shaped. ICD estimated from Google Maps linework.
Bel Air North, MD Harford Co. United States	Water Tower Way / Bynum Rd. (39.56671, -76.35712)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2019	http://harfordcountymd.gov/ArchiveCenter/ViewFile/Item/1683
Bel Air North, MD Harford Co. United States	Red Pump Rd. / Yankee Doodle Dr. (39.54551, -76.37994)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2010
Bel Air South, MD Harford Co. United States	Woodsdale Rd. / Box Hill Corporate Center Dr. / (parking) (39.46498, -76.31016)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2014	Year Completed estimated (2013-2015).
Abingdon, MD Harford Co. United States	Laurel Bush Rd. / E Wheel Rd. (39.49411, -76.31652)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2009-2011).
Havre de Grace, MD Harford Co. United States	Chapel Rd. / Bulle Rock Pkwy. (39.55465, -76.12813)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.9922	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Havre de Grace, MD Harford Co. United States	Blenheim Farm Ln. / Bounding Home Ct. (39.54665, -76.13521)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways 30.3915	Other (At-Grade) Single-Lane	2006	Painted splitter islands on north and south legs, no splitter islands on east and west legs. ICD estimated from Google Maps linework.
Abingdon, MD Harford Co. United States	Merchants Blvd. / Wegmans Blvd. (39.46815, -76.30901)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.5039	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Bel Air, MD Harford Co. United States	Tollgate Rd. / Macphail Rd. (39.51959, -76.35208)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 19.8120	Other (At-Grade) Single-lane w/ Traversable Central Island	2012
Aberdeen, MD Harford Co. United States	Philadelphia Rd. (MD 7) / Ashford Dr.. / Panell Dr. (39.48593, -76.23873)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.4792	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Aberdeen, MD Harford Co. United States	Tralee Cir. / Ashford Dr. (39.48395, -76.23831)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.8100	Other (At-Grade) Single-Lane	2003	ICD estimated from Google Maps linework.
Aberdeen, MD Harford Co. United States	Burnt Hill Trl. / Atlas Cedar Way / Thistle Hill Dr. (39.49324, -76.22236)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.1799	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Aberdeen, MD Harford Co. United States	Burnt HIll Trl. / Witch Hazel Way / Limestone Ct. (39.49486, -76.22046)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.1791	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Aberdeen, MD Harford Co. United States	Thistle Hill Dr. / Witchhazel Way (39.49563, -76.22415)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.3355	Other (At-Grade) Single-Lane	2008	ICD estimated from Google Maps linework.
Aberdeen, MD Harford Co. United States	Burnt Hill Trl. / Holly Oak Cir. / Woods Line Dr. (39.49605, -76.21740)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.8055	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Abingdon, MD Harford Co. United States	Tollgate Rd. / Singer Rd. (39.47828, -76.32727)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.8121	Other (At-Grade) Single-Lane	1998	http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 ICD estimated from Google Maps linework.
Fountain Green, MD Harford Co. United States	Prospect Mill Rd. / Wagner Rd. (39.55824, -76.30247)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.3072	Other (At-Grade) Single-Lane	2002	http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 Functional Class: Collector ICD estimated from Google Maps linework.
Bel Air, MD Harford Co. United States	Moores Mill Rd. / Brushing Ln. (39.54368, -76.32365)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.6298	Other (At-Grade) Single-Lane	2001	http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 ICD estimated from Google Maps linework.
Frogtown, MD Harford Co. United States	Mardic Dr. / Willrich Ct. (39.57178, -76.37160)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.3011	Other (At-Grade) Single-Lane	2001	http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 ICD estimated from Google Maps linework.
Bel Air, MD Harford Co. United States	Tollgate Rd. / Wheel Rd. (39.48999, -76.32914)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.5729	Other (At-Grade) Single-Lane	1999	http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 ICD estimated from Google Maps linework.
Bel Air, MD Harford Co. United States	MD 7 / Holly Oaks Drive (39.48848, -76.21669)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.1039	Other (At-Grade) Single-Lane	1999	Opened September 1999. ICD estimated from Google Maps linework.
North Harford, MD Harford Co. United States	MD 165 / MD 24 (39.67220, -76.40930)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.1750	Other (At-Grade) Single-Lane	2000	Rural Previously controlled by two-way stop ICD estimated from Google Maps linework.
Abingdon, MD Harford Co. United States	Tollgate Rd. / Montrose Way (39.48198, -76.32751)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.5762	Other (At-Grade) Single-Lane	2003	Elementary school and library to north, another school to south. Functional Class: Collector ICD estimated from Google Maps linework.
Bel Air, MD Harford Co. United States	Tollgate Rd. / Westover Ln. / Crisfield Dr. (39.46859, -76.32162)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.7377	Other (At-Grade) Single-Lane	2002	http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Bel Air, MD Harford Co. United States	Tollgate Rd. / Marketplace Dr. (39.52092, -76.35262)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.5602	Other (At-Grade) Single-Lane	1996	Three leg, off-set roundabout - off-set due to lack of r/w on top side of Functional Class: Collector ICD estimated from Google Maps linework.
Forest Hill, MD Harford Co. United States	MD 23 / Commerce Rd. (39.57390, -76.37067)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2008	On August 9, 2008 a new roundabout opened on Maryland Route 23 and an extended Commerce Drive in Forest Hill (Harford County), Maryland. It was built by a private developer to improve access to the Forest Hill Industrial Park by using Route 23, a limited access highway, rather than the current access road to Commerce Drive, Jarrettsville Road, which is primarily a residential route.
Bel Air, MD Harford Co. United States	Constant Friendship Blvd. / BJ's (39.45546, -76.31870)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 29.5092	Other (At-Grade) Single-Lane	1995	Functional Class: Local ICD estimated from Google Maps linework.
Aberdeen, MD Harford Co. United States	Beards Hill Rd. / Middleton Rd. / Olympic Square (39.52719, -76.17773)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.6364	Other (At-Grade) Single-Lane	2019	https://www.baltimoresun.com/maryland/harford/aegis/cng-ag-aberdeen-roundabout-opens-0927-20190926-2itkrrn43jctnkw2ch6et7ky7m-story.html ICD estimated from Google Maps linework.
Abingdon, MD Harford Co. United States	Tewkesbury Rd. / Shrewsbury Rd. (39.45775, -76.27273)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 49.7952	Other (At-Grade) Single-Lane	2003	Year Completed estimated (2003-2004). http://onlinepubs.trb.org/Onlinepubs/circulars/ec083/68_Statmeyerpaper.pdf ICD estimated from Google Maps linework.
Aberdeen, MD Harford Co. United States	Old Philadelphia Rd. (MD 7) / Perryman Rd. (MD 159) (39.48791, -76.19155)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.7911	Other (At-Grade) Single-Lane	2019	https://www.facebook.com/pg/Harford-County-Roundabouts-308793279204833/posts/ ICD estimated from Google Maps linework.
Bel Air South, MD Harford Co. United States	S Tollgate Rd. / Plumtree Rd. (39.50070, -76.33349)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 31.3332	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Bel Air South, MD Harford Co. United States	S Tollgate Rd. / W Ring Factory Rd. (39.50873, -76.34550)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 28.5652	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2007). ICD estimated from Google Maps linework.
Bel Air South, MD Harford Co. United States	Abingdon Rd. / Dunbarton Dr. / Box Hill S Pkwy. (39.47491, -76.30092)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 25.8134	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2007). ICD estimated from Google Maps linework.
Bel Air North, MD Harford Co. United States	Moores Mill Rd. / Southampton Rd. (39.54847, -76.33536)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.6279	Other (At-Grade) Single-Lane	2010	ICD estimated from Google Maps linework.
Hickory, MD Harford Co. United States	Water Tower Way / Granary Rd. (39.56845, -76.35713)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.0960	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Aberdeen, MD Harford Co. United States	MD 7 (Philadelphia Rd.) / Seven Trails Dr. / (unknown) (39.48874, -76.22404)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 46.0861	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	ICD estimated from Google Maps linework.
Bel Air, MD Harford Co. United States	Old Joppa Ct. / Hoskins Terrace (39.51380, -76.37506)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.0040	Other (At-Grade) Single-Lane	2016	Year Completed estimated (2014-2017).
Bel Air, MD Harford Co. United States	English Manor Ln. / Squire Ln. / Canterbury Rd. (39.52643, -76.36371)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Aberdeen, MD Harford Co. United States	Heathland Trl. / Spindrift Rd. / Bentgrass Dr. (39.49427, -76.20490)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Abingdon, MD Harford Co. United States	Four Seasons Dr. / Raking Leaf Dr. / Raking Leaf Dr. / Indian Summer Ct. (39.45387, -76.28951)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2006	Painted splitter islands. Pedestrian crossings at entrance lines. Year Completed estimated (2005-2007).