Roundabouts Database Index

28798 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
Bloomington, IN Monroe Co. United States	W Woodyard Rd. / N Curry Pike / W Hunter Valley Rd. (39.19027, -86.58242)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 56.3877	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2022	Series of 2 roundabouts. Striped out spiral in circulatory roadway. https://www.heraldtimesonline.com/story/news/traffic/2022/03/03/work-2-6-m-double-roundabout-bloomington-start-next-week/9332294002/
Bloomington, IN Monroe Co. United States	W Woodyard Rd. / N Smith Pike (39.19089, -86.58340)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2022	Series of 2 roundabouts.
Bloomingdale, GA Chatham Co. United States	Bloomingdale Rd. / Little Neck Rd. / I-16 EB Ramps (32.09873, -81.32315)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Freeway Ramps (Grade-Separated) Single-Lane	2022	Yield-controlled right-turn bypass lane on west leg (freeway exit ramp) that is aimed at circulatory roadway. Yield-controlled right-turn bypass lane on south leg onto freeway entrance ramp.
Bloomingdale, GA Chatham Co. United States	GA 17 (Bloomingdale Rd.) / I-16 WB Ramps (32.10083, -81.32357)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2022
Bloomfield, IN Greene Co. United States	SR 445 / I-69 SB Ramps (39.03444, -86.68995)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 31.5423	Freeway Ramps (Grade-Separated) Single-Lane	2015	Raindrop shape. ICD estimated from Google Maps linework.
Bloomfield, IN Greene Co. United States	SR 445 / I-69 NB Ramps (39.03372, -86.68831)	Roundabout Existing	All-Way Yield Unknown	2 Approaches 0 Driveways 28.7595	Freeway Ramps (Grade-Separated) Single-Lane	2015	Raindrop shape. ICD estimated from Google Maps linework.
Blomkest, MN Kandiyohi Co. United States	US 71 (1st St. S) / STH 7 (195th Ave. SE) (44.93535, -95.04408)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 55.8010	Other (At-Grade) Single-Lane	2017	https://www.kare11.com/article/traffic/major-road-projects-highlight-mndot-construction-season/488383654 ICD estimated from Google Maps linework.
Blomeyer, MO Cape Girardeau Co. United States	MO 25 / MO 77 / Nash Rd. (37.22343, -89.66024)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 60.9600	Other (At-Grade) Single-Lane	2011
Bli Bli, QLD Sunshine Coast Australia	SR 10 (Bli Bli Rd.) / M1 (Bruce Hwy.) NB Ramps / Rifle Range Rd. / Sewerage Plant Rd. (-26.61589, 152.97832)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)
Bli Bli, QLD Sunshine Coast Australia	SR 10 (Bli Bli Rd.) / M1 (Bruce Hwy.) SB Ramps (-26.61541, 152.98071)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)
Bli Bli, QLD Sunshine Coast Australia	Camp Flat Rd. / Parklakes Dr. (-26.60273, 153.02100)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Bli Bli, QLD Sunshine Coast Australia	Yandina-Bli Bli Rd. / Thomas Rd. / Parklakes Dr. (-26.60525, 153.03022)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Bli Bli, QLD Sunshine Coast Australia	SR 10 (Bli Bli Rd.) / Willis Rd. (-26.61678, 153.03622)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		Two lanes southbound.
Bletchley, England Milton Keynes United Kingdom	A421 (Standing Way) / Tattenhoe Ln. (51.99815, -0.77246)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Bletchley, England Milton Keynes United Kingdom	Whaddon Way / Tattenhoe Ln. (northeast) (51.99282, -0.76234)	Roundabout Unknown	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Single-lane w/ Traversable Central Island
Bletchley, England Milton Keynes United Kingdom	Whaddon Way / Tattenhoe Ln. (southwest) (51.99251, -0.76281)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Single-lane w/ Traversable Central Island
Bletchley, England Milton Keynes United Kingdom	B4034 (Buckingham Rd.) / Newton Rd. (51.99129, -0.75460)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Single-lane w/ Traversable Central Island
Bletchley, England Milton Keynes United Kingdom	B4034 (Buckingham Rd.) / Shenley Rd. (51.99131, -0.75405)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Single-lane w/ Traversable Central Island
Bletchley, England Milton Keynes United Kingdom	B4034 (Buckingham Rd.) / Water Eaton Rd. / Sherwood Dr. (51.99331, -0.73822)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Bletchley, England Milton Keynes United Kingdom	Brunel Roundabout [B4034 (Queensway-Saxon St.) / Duncombe St.] (51.99432, -0.73462)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Bletchley, England Milton Keynes United Kingdom	Princes Way Roundabout [B4034 / Princes Way] (51.99711, -0.73430)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Bletchley, England Milton Keynes United Kingdom	Beacon Roundabout [Watling St. / (parking)] (52.00159, -0.72379)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Unknown
Bletchley, England Milton Keynes United Kingdom	B4034 (Saxon St.) / Watling St. (52.00264, -0.72635)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Partial double roundabout.
Bletchley, England Milton Keynes United Kingdom	Denbigh Roundabout [B4034 (Saxon St.) / Blatcham Way] (52.00428, -0.72672)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Bletchley, England Milton Keynes United Kingdom	Watling St. / Grafton St. (52.00666, -0.73549)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Blenheim, Marlborough Marlborough New Zealand	Middle Renwick Rd. (SH 6) / Westwood Ave. (-41.50940, 173.92470)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Blenheim, Marlborough Marlborough New Zealand	SH 1 (Main St. - Sinclair St.) / Main St. / Redwood St. (-41.51345, 173.95983)	Roundabout Existing	All-Way Yield At-grade Rail Crossing Signals/Gates (controlling circulatory roadway only)	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Blenheim, Marlborough Marlborough New Zealand	SH 1 (Grove Rd.) / SH 6 (Nelson St.) / Dillons Point Rd. (-41.50804, 173.95933)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Blenheim, Marlborough Marlborough New Zealand	SH 6 (Middle Renwick Rd. - Nelson St.) / Boyce St. (-41.50894, 173.93972)	Roundabout Existing	All-Way Yield None	3 Approaches 2 Driveways	Other (At-Grade) Single-Lane
Blenheim, Marlborough Marlborough New Zealand	SH 6 (Middle Renwick Rd.) / Murphys Rd. / Battys Rd. (-41.50922, 173.93267)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Blenheim, Marlborough Marlborough New Zealand	New Renwick Rd. / Alabama Rd. / Maxwell Rd. (-41.52878, 173.94405)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Blenheim, Marlborough Marlborough New Zealand	Alabama Rd. / Redwood St. (-41.52801, 173.96144)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Blenheim, Marlborough Marlborough New Zealand	Taylor Pass Rd. / Forest Park Dr. / Turnbull Dr. (-41.54382, 173.93778)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Blenheim, Marlborough Marlborough New Zealand	Maxwell Rd. / Seymour St. (-41.51535, 173.95483)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Blenheim, Marlborough Marlborough New Zealand	Taylor Pass Rd. / Neville St. / Payne Pl. (-41.54906, 173.93540)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Blenheim, Marlborough Marlborough New Zealand	High St. / Seymour St. (-41.51186, 173.95458)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Blenheim, Marlborough Marlborough New Zealand	SH 1 (Sinclair St.) / Alfred St. / Horton St. (-41.51082, 173.95948)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Blaydon, England Gateshead United Kingdom	A695 / Stargate Ln. (54.96416, -1.74729)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Blaydon, England Gateshead United Kingdom	A695 / Beweshill Ln. / (parking) (54.96420, -1.73362)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Blaydon, England Gateshead United Kingdom	A694 / A695 (Derwenthaugh Rd.) / A1114 (Riverside Way) (54.96220, -1.68543)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Blaxland, NSW Blue Mountains Australia	Mitchells Pass / Layton Ave. / Wilson Way / Grahame St. (-33.74857, 150.61641)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Blandon, PA Berks Co. United States	US 222 (Allentown Pike) / Schaeffer Rd. (40.45584, -75.88412)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2021	https://berksweekly.com/traffic-transit/video-new-roundabout-opens-on-route-222-in-maidencreek-township/
Blandon, PA Berks Co. United States	US 222 (Allentown Pike) / Tamarack Blvd. / Genesis Dr. (40.45234, -75.89067)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown	2022	Year Completed estimated (2020-2022).
Blairsville, GA Union Co. United States	Walmart Dr. / Wintermute Dr. (34.86250, -84.00027)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.2592	Other (At-Grade) Single-Lane	2009	Serves Walmart commercial center. ICD estimated from Google Maps linework.
Blair Athol, NSW Campbelltown Australia	The Kraal Dr. / Johnson Rd. (-34.06020, 150.80535)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Blair Athol, NSW Campbelltown Australia	The Kraal Dr. / Farrow Rd. (-34.06371, 150.80598)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Blair, NE Washington Co. United States	NE 133 / US 30 (41.51842, -96.14633)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.1353	Other (At-Grade) Single-Lane	2004	Opened November 4, 2004. Right-turn bypass lanes on all three approaches. http://www.nebraskatransportation.org/roadrunner/docs/archives/Dec04Jan05.pdf ICD estimated from Google Maps linework.
Blaine/Lino Lakes, MN Anoka Co. United States	Sunset Rd. / Apollo Dr. / 109th Ave. NE (45.17093, -93.14284)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.4157	Other (At-Grade) Single-Lane	2016	On border of Blaine and Lino Lakes. 109th Ave NE realigned to meet this roundabout. https://www.hometownsource.com/abc_newspapers/news/local/blaine-council-approves-jpa-for-project-on-sunset/article_d5f8c687-b440-55a0-916a-79189ad336d1.html ICD estimated from Google Maps linework.
Blaine, MN Anoka Co. United States	105th Ave. NE / Irvin Pkwy. (45.16076, -93.22538)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 44.6337	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	https://blainemn.gov/Blog.aspx?IID=37&ARC=20 ICD estimated from Google Maps linework.
Blaine, MN Anoka Co. United States	105th Ave. NE/(National Sports Center entry) (45.16079, -93.22210)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.8436	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	https://blainemn.gov/Blog.aspx?IID=37&ARC=20 ICD estimated from Google Maps linework.
Blaine, MN Anoka Co. United States	Club West Pkwy. / 113th Ave. (45.17343, -93.23103)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 52.2014	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Blaine, MN Anoka Co. United States	Lakes Pkwy. / Harpers St. (45.19327, -93.19199)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.0332	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Blaine, WA Whatcom Co. United States	I-5 SB Ramps / Peace Portal Dr. / Marine Dr. (48.99723, -122.75250)	Roundabout Existing	All-Way Yield At-grade Rail Crossing Signals/Gates (controlling approach only)	4 Approaches 0 Driveways 26.6422	Freeway Ramps (Grade-Separated) Single-Lane	2010	May 2010. Roundabout is ~200 ft from railroad crossing. ICD estimated from Google Maps linework.
Blaine, WA Whatcom Co. United States	I-5 NB Ramps / D St. / 2nd St. (48.99810, -122.75140)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.6939	Freeway Ramps (Grade-Separated) Single-Lane	2010	May 2010. ICD estimated from Google Maps linework.
Blaine, WA Whatcom Co. United States	SR 548 (Grandview Rd.) / Blaine Rd. / (parking) (48.89206, -122.72655)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2010	September 2010. Merging right-turn bypass lane on south leg. Right-turn-oinly lane on north leg.
Blaine, MN Anoka Co. United States	Austin St. / 108th Ave. (45.16552, -93.16653)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2019	Year Completed estimated (2019-2020).
Blaine, GA Pickens Co. United States	GA 136 / GA 136 Connector (34.51086, -84.55772)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	Replaced triangular set of intersections.
Blagoveshchensk, Amur Blagoveshchensk Russia	AH31 (Magistral'naya ulitsa) / Kalinina ulitsa / Novotroitskoye shosse / Ignat'yevskoye shosse (50.29066, 127.52714)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Blagoveshchensk, Amur Blagoveshchensk Russia	Teatral'naya ulitsa / AH31 (Magistral'naya ulitsa) Ramps (50.28983, 127.55716)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)
Blackwood, SA Mitcham Australia	Main Rd. / Shepherds Hill Rd. / Coromandel Parade / Station Rd. (-35.02120, 138.61679)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Blackwall, NSW Central Coast Australia	Gallipoli Ave. / Springwood St. (-33.50731, 151.32761)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-lane w/ Traversable Central Island
Blacktown, NSW Blacktown Australia	Prospect Hwy. / M4 (Western Motorway) EB Ramps (-33.80419, 150.91535)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)
Blacktown, NSW Blacktown Australia	Reservoir Rd. / Holbeche Rd. (-33.79298, 150.89799)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Blacktown, NSW Blacktown Australia	Holbeche Rd. / Walters Rd. (-33.78992, 150.89056)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Blacktown, NSW Blacktown Australia	Walters Rd. / Douglas Rd. / Craig St. (-33.78251, 150.89393)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-lane w/ Traversable Central Island
Blackshear, GA Pierce Co. United States	County Farm Rd. / Alabama Woods Dr. (31.34834, -82.22002)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2019	Year Completed estimated (2017-2022).
Blackshear, GA Pierce Co. United States	County Farm Rd. / (high school access) (31.34287, -82.21935)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2019	http://www.theblacksheartimes.com/news/2019-top-10-local-stories/article_c1b7425c-2bfd-11ea-98c9-5f8d4ad32621.html (see second picture)
Blacksburg, VA United States	N. Main St. / Prices Fork Rd. (37.23509, -80.42071)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 41.8385	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	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.
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.
Blackrock, Ireland	R825 (Stillorgan Park) / Grove Ave. (53.29057, -6.19100)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Blackpool, England Lancs United Kingdom	A583 (Preston New Rd.) / B5410 (Lytham Saint Annes Way) / Hallam Way (53.78970, -2.98185)	Roundabout Existing	All-Way Yield None	5 Approaches 1 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Blackpool, England Blackpool United Kingdom	Bispham Rd. / Red Bank Rd. / Devonshire Rd. (53.85177, -3.04094)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Blackpool, England Blackpool United Kingdom	A586 (Poulton Rd.) / A587 (Plymouth Rd.-St. Walburga's Rd.) / Carleton Ave. (53.83345, -3.02601)	Signalized Roundabout/Circle Existing	Signal Unknown	5 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Signalized pedestrian crossings to central island.
Blackmans Bay, TAS Kingborough Australia	Roslyn Ave. (C623) / Algona Rd. (-42.99929, 147.32056)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Blackman Township, MI Jackson Co. United States	Cooper St. / I-94 WB Ramps (42.27376, -84.40371)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2019	https://www.mlive.com/news/jackson/2019/12/take-a-ride-on-new-i-94-cooper-street-bridge-roundabouts-after-9-month-closure.html
Blackman Township, MI Jackson Co. United States	Cooper St. / I-94 EB Ramps (42.27098, -84.40380)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2019	https://www.mlive.com/news/jackson/2019/12/take-a-ride-on-new-i-94-cooper-street-bridge-roundabouts-after-9-month-closure.html
Blackhorse Ranch South, TX Harris Co. United States	Autumn Light Ln. / Winding Star Ln. (29.95095, -95.71406)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 39.6240	Unknown Single-Lane	2018	Constructed as traffic circle around 2004 with no splitter island on south leg and unknown control. Painted splitter island on south leg added 2017-2019.
Blackheath, England Sandwell United Kingdom	A4100 (Henderson Way) / A4171 (Birmingham Rd.) (52.47671, -2.03919)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Blackeberg, Halland County Falkenbergs kommun Sweden	Tångarondellen (56.91696, 12.50417)	Rotary Existing	All-Way Yield None	5 Approaches 0 Driveways 76.2000	Other (At-Grade) Single-Lane		Completed well before 2010.
Blackeberg, Halland County Falkenbergs kommun Sweden	Rte 154 / Kilavägen (56.92321, 12.50801)	Unknown Existing	All-Way Yield Metering Signal	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2009	Completed fall 2009 or spring 2010.
Blackeberg, Halland County Falkenbergs kommun Sweden	Rte 154 / E6-E20 SB Ramps (56.93033, 12.51433)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 150.0000	Freeway Ramps (Grade-Separated) Single-Lane	2015	Yielding right-turn bypass lane on northeast leg.
Blackbutt, NSW Shellharbour Australia	Wattle Rd. / Brunderee Rd. (-34.57209, 150.84438)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways	Other (At-Grade) Single-Lane
Blackbutt, NSW Shellharbour Australia	College Ave. / Pioneer Dr. (-34.57470, 150.83414)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Blackburn, England Blackburn with Darwen United Kingdom	A6078 (Barbara Castle Way - Eanam) / A674 (Eanam) / Quarry St. (53.74960, -2.47519)	Roundabout Existing	All-Way Yield None	4 Approaches 1 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Blackburn, England Blackburn with Darwen United Kingdom	A678 (Carl Fogarty Way) / A6119 (Whitebirk Rd.) / Burnley Rd. (53.75415, -2.44700)	Roundabout Existing	All-Way Yield None	4 Approaches 1 Driveways	Other (At-Grade) Multilane (3+ Lane)
Blackburn, England Blackburn with Darwen United Kingdom	A6077 (Haslingden Rd.) / (entrance to Royal Blackburn Teaching Hospital) (53.73413, -2.45894)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Blackburn, England Blackburn with Darwen United Kingdom	A6062 (Livesey Branch Rd.) / Horden View / Coverdale Dr. (53.72267, -2.53310)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Black Rock, VIC Bayside Australia	SR 33 (Beach Rd.) / SR 10 (Balcombe Rd.) (-37.97549, 145.01591)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		System of two closely spaced roundabouts.
Black Rock, VIC Bayside Australia	SR 10 (Balcombe Rd.) / SR 19 (Bluff Rd.) (-37.97543, 145.01621)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane		System of two closely spaced roundabouts.
Black Diamond, WA King Co. United States	SE Auburn Black Diamond Rd. / Roberts Dr. / Lake Sawyer Rd. SE (47.31151, -122.02996)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 33.2005	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Black Diamond, WA King Co. United States	SE Auburn Black Diamond Rd. / Ten Trails Pkwy. SE (47.31106, -122.03510)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.4528	Other (At-Grade) Single-Lane	2019	North leg added 2021-2022.
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.
Björklinge, Uppsala County Uppsala Sweden	Rte 600 / Rte 700 (60.01782, 17.55659)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 50.7316	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Bjelovar, Bjelovar-Bilogora Croatia	D28 (Južna obilaznica) / Slavonska cesta (45.89093, 16.85411)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Bjärred, Skåne County Lomma Sweden	Fjelievägen / E6 NB Ramps (55.72272, 13.09088)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Single-Lane	1976	Raindrop shaped. Merging right-turn bypass lane on east leg. The previous control was yield from ramp.