Roundabouts Database Index

29554 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
Fretin, Hauts-de-France Nord France	M54 / D54 (Rue Léon Gambetta) (50.55538, 3.11582)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Avelin, Hauts-de-France Nord France	D54 / D917 (50.54777, 3.10019)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Avelin, Hauts-de-France Nord France	D54 (Rue de Lille) / Rue de la Monette / Rue d'Antroeuilles (50.54051, 3.08203)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Avelin, Hauts-de-France Nord France	D549 (Rue de Seclin) / Rue de Lille (50.53773, 3.08072)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Avelin, Hauts-de-France Nord France	D549 (Rue de Seclin) / Rue d'Attiches (50.54098, 3.07188)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 2 Driveways 65.0000	Other (At-Grade) Single-Lane
Seclin, Hauts-de-France Nord France	M549 (Route d'Avelin) / Les Six Bonniers / (unknown) (50.54409, 3.06000)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Seclin, Hauts-de-France Nord France	Rond-Point de l'Épinette: M549 (Route d'Avelin) / M925 / Avenue de l'Épinette (50.54807, 3.04859)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, 2x2 max)
Nora, Orebro County Nora Sweden	Storgatan / Tingshusgatan (59.51951, 15.03258)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 21.2036	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Cooroy, QLD Noosa Australia	SR 6 (Cooroy Connection Rd. - Myall St.) / Nandroya Rd. (-26.43158, 152.91432)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Cooroy, QLD Noosa Australia	Mary River Rd. / Sportsground Parade / Jarrah St. (-26.41472, 152.90322)	Roundabout Existing	All-Way Yield None	4 Approaches 1 Driveways	Other (At-Grade) Single-Lane		Oval shaped.
Tewantin, QLD Noosa Australia	Poinciana Ave. / Butler St. (-26.39037, 153.02809)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Noosaville, QLD Noosa Australia	Eumundi Rd. / Gibson Rd. / Wallace Dr. (-26.40023, 153.05122)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Noosaville, QLD Noosa Australia	Eumundi Rd. / Hilton Terr. / Gympie Terr. (-26.39898, 153.05214)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Noosaville, QLD Noosa Australia	Gibson Rd. / Saltwater Ave. (-26.40202, 153.06457)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Noosaville, QLD Noosa Australia	Mary St. / Weyba Rd. / Reef St. (-26.40071, 153.06889)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Noosaville, QLD Noosa Australia	SR 6 (Eenie Creek Rd.) / SR 70 (Walter Hay Dr.) (-26.41344, 153.05041)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		Bike boxes on all entries.
Noosaville, QLD Noosa Australia	SR 6 (Eenie Creek Rd.) / Reef St (-26.40950, 153.06909)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Black Mountain, QLD Noosa Australia	Cooroy Connection Rd. / M1 (Bruce Hwy.) WB Ramps (-26.39363, 152.86916)	Roundabout Existing	All-Way Yield Unknown	2 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Single-Lane
Pomona, QLD Noosa Australia	Cooroy Connection Rd. / Old Bruce Hwy. (-26.39170, 152.86960)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Peregian Beach, QLD Noosa Australia	SR 70 (Sunshine Motorway - Emu Mountain Rd.) / Peregian Springs Dr. / Emu Mountain Rd. (-26.49551, 153.08064)	Rotary Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Nokia, Pirkanmaa Nokia Finland	Pinsiöntie / Rounionkatu (61.48491, 23.50427)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Nokia, Pirkanmaa Nokia Finland	Pinsiöntie / Rautatienkatu (61.48370, 23.50685)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Nokia, Pirkanmaa Nokia Finland	Emäkoskentie / Taivalkunnantie / Orelinkatu (61.46854, 23.50375)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Worthington, MN Nobles Co. United States	US 59-TH 60 / CSAH 35 (43.62105, -95.57973)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.9590	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Worthington, MN Nobles Co. United States	US 59-TH 60 / Oxford St. (43.63086, -95.57674)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.4939	Other (At-Grade) Multilane (2 Lane, unspecified)	2013	ICD estimated from Google Maps linework.
Worthington, MN Nobles Co. United States	US 59-TH 60 / I-90 EB Ramps (43.63559, -95.56880)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 56.1852	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2013	ICD estimated from Google Maps linework.
Nizhniy Novgorod, Nizhniy Novgorod Nizhny Novgorod Russia	Komsomol'skaya ploshchad' (56.29882, 43.94495)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Trams through central island.
Nizhniy Novgorod, Nizhniy Novgorod Nizhny Novgorod Russia	ulitsa Admirala Vasyunina / utilsa Boris Kamilova (56.29757, 44.04411)	Unknown Existing	Unknown Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Nizhniy Novgorod, Nizhniy Novgorod Nizhny Novgorod Russia	Komsomolskoye sh. / Moskovskoye shosse Ramps / Burnakovskiy proyezd / pr. Geroyev (56.31500, 43.89899)	Unknown Existing	Unknown Unknown	5 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)
Nizhniy Novgorod, Nizhniy Novgorod Nizhny Novgorod Russia	Akmolinskaya Ulitsa / Ulitsa Proletarskaya / Burnakovskaya ulitsa (56.33846, 43.92139)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Nizhniy Novgorod, Nizhniy Novgorod Nizhny Novgorod Russia	ulitsa Kominterna / (unknown) (56.34485, 43.88902)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Nizhniy Novgorod, Nizhniy Novgorod Nizhny Novgorod Russia	Murashkinskaya ulitsa / ulitsa Betankura (56.32958, 43.94853)	Other Existing	Other Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Circulating traffic yields to entering traffic.
Nizhniy Novgorod, Nizhniy Novgorod Nizhny Novgorod Russia	ploshchad' Lyadova (56.30829, 43.98520)	Other Existing	Signal Unknown	5 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Nizhniy Novgorod, Nizhniy Novgorod Nizhny Novgorod Russia	Molodezhnyy prospekt / utilsa Vedenyapina / prospekt Lenina (56.24164, 43.86346)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Unknown		Trams through central island.
Nizhniy Novgorod, Nizhniy Novgorod Nizhny Novgorod Russia	ulitsa Batankura / Samarkandskaya ulitsa / Krutoy pereulok (56.33596, 43.95735)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Rotnes, Buskerud Nittedal Norway	Rv4 (Hadelandsveien) / Rv22 (Trondheimsveien) (59.98871, 10.92965)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane		Through bypass on north leg.
Rotnes, Buskerud Nittedal Norway	Rv22 (Trondheimsveien) / Nittedalsveien / Karushøgda (59.98899, 10.93141)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Rotnes, Buskerud Nittedal Norway	Rv22 (Trondheimsveien) / Morteveien (59.98907, 10.93646)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Rotnes, Buskerud Nittedal Norway	Nittedalsveien / Kjulsveien / Kjul Terrasse (60.02725, 10.89561)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Rotnes, Buskerud Nittedal Norway	Hadelandsveien / Kvernstuveien / Bjertnestangen (60.04807, 10.88226)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Nitra, Nitra Region Nitra Slovakia	Bratislavská / Sturova / Janka Kral'a / Braneckeho (48.31012, 18.07369)	Rotary Existing	All-Way Yield Unknown	5 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		Oval shaped.
Nitra, Nitra Region Nitra Slovakia	Rte 51 / E58-E571-R1 Ramps (48.30800, 18.14245)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Single-Lane
Nitra, Nitra Region Nitra Slovakia	Rte 51-Rte 64 / Dobsinkeho (48.31996, 18.09740)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		Concentric striped circulatory roadway. No entry deflection.
Nitra, Nitra Region Nitra Slovakia	Rte 64 / Rte 64 Ramps / (unknown) (48.34126, 18.05959)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways	Freeway Ramps (Grade-Separated) Single-Lane
Nitra, Nitra Region Nitra Slovakia	Rte 64 / (parking) (48.25678, 18.10742)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
North Bay, ON Nipissing Canada	Gormanville Rd. / College Dr. / McKeown Ave. (46.33406, -79.48714)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.7575	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	http://www.minnowlake.ca/Roundabouts_in_Canada_2013%20(1).pdf ICD estimated from Google Maps linework.
Mattawa, ON Nipissing Canada	Trans Canada Hwy. / Main St. (46.31735, -78.70220)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 34.6449	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Eltham, VIC Nillumbik Australia	Pitt St. / Glenister Dr. (-37.72218, 145.15970)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways	Other (At-Grade) Single-Lane
Greensborough, VIC Nillumbik Australia	SR 46 (Greensborough Hwy.) / Diamond Creek Rd. / Civic Dr. (-37.68909, 145.11328)	Roundabout Existing	All-Way Yield Pedestrian Signal (red-yellow-green to drivers)	4 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)		Metering signals installed 2006 on northwest leg (AM peak) and southeast leg (PM peak). Bus bypass lanes and pedestrian crosswalks installed 2014.
Nijmegen, Gelderland Nijmegen Netherlands	Industrieweg / Van Heemstraweg / Westkanaaldijk (51.85522, 5.82168)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 28.7694	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Nijmegen, Gelderland Nijmegen Netherlands	Energieweg / Industrieweg (51.85051, 5.83151)	Signalized Roundabout/Circle Existing	Signal Unknown	4 Approaches 0 Driveways 74.5133	Other (At-Grade) Multilane (3+ Lane)		ICD estimated from Google Maps linework.
Nijmegen, Gelderland Nijmegen Netherlands	Industrieweg / Waterstraat / Voorstadstaan (51.84556, 5.83935)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 44.2702	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Nijmegen, Gelderland Nijmegen Netherlands	Keizer Karelplein (51.84214, 5.85935)	Signalized Roundabout/Circle Existing	Signal Unknown	6 Approaches 0 Driveways 115.8491	Other (At-Grade) Multilane (3+ Lane)		ICD estimated from Google Maps linework.
Lent, Gelderland Nijmegen Netherlands	S111 / (bike path) (51.86907, 5.85824)	Roundabout Existing	All-Way Yield Unknown	2 Approaches 0 Driveways 28.0231	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Lent, Gelderland Nijmegen Netherlands	Vrouwe Udasingel / Spanjestraat (51.86935, 5.86348)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 30.2353	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Lent, Gelderland Nijmegen Netherlands	Vrouwe Udasingel / Het Buske (51.87062, 5.87203)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 40.5584	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Nijmegen, Gelderland Nijmegen Netherlands	RampsKeizer Hendrik VI Singel / Dorpensingel / N325 Ramps (51.88277, 5.85903)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 60.4525	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)		ICD estimated from Google Maps linework.
Nijmegen, Gelderland Nijmegen Netherlands	Keizer Hendrik VI Singel / Hella Haassestraat (51.88276, 5.85183)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 30.9635	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Nijmegen, Gelderland Nijmegen Netherlands	Griftdijk / Oude Groenestraat / Keizer Hendrik VI Singel (51.88262, 5.84609)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 27.2775	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Nijmegen, Gelderland Nijmegen Netherlands	Oude Groenestraat / Bellefleurstraat (51.88152, 5.84101)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 25.0664	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Nijmegen, Gelderland Nijmegen Netherlands	Griftdijk / Stationsstraat (51.88769, 5.84109)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 30.9601	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
North Mankato, MN Nicollet Co. United States	Lookout Dr. / US 14 EB Ramps (44.18021, -94.05378)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2016	Year Completed estimated (2015-2017).
North Mankato, MN Nicollet Co. United States	Lookout Dr. / US 14 WB Ramps (44.18184, -94.05374)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2016	Year Completed estimated (2015-2017).
Mankato, MN Nicollet Co. United States	Rockford Rd. (CR 41) / Pleasant View Dr. / 520th St. (44.18361, -94.06988)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.1960	Other (At-Grade) Single-Lane	2013	Year Completed estimated (2011-2015).
North Mankato, MN Nicollet Co. United States	Rockford Rd. (CR 41) / US 14 EB Ramps (44.18520, -94.06893)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 48.7680	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2013	Raindrop shape. Year Completed estimated (2011-2015).
North Mankato, MN Nicollet Co. United States	Rockford Rd. (CR 41) / W Howard Dr. / US 14 WB Ramps (44.18763, -94.06758)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7680	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2013	Double-left-turn on west leg. Year Completed estimated (2011-2015).
Nicollet, MN Nicollet Co. United States	461st Ave. / US 14 WB Ramps (44.26645, -94.19045)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2017	Year Completed estimated (2016-2018).
Nicollet, MN Nicollet Co. United States	461st Ave. / US 14 EB Ramps (44.26470, -94.19047)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2017	Teardrop shape. Year Completed estimated (2016-2018).
New Ulm, MN Nicollet Co. United States	US 14 / CR 21 / STH 15 SB Ramps (44.32559, -94.44171)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Freeway Ramps (Grade-Separated) Single-Lane	2019	Raindrop shaped. Year Completed estimated (2015-2021).
New Ulm, MN Nicollet Co. United States	US 14 / CR 21 / STH 15 NB Ramps (44.32465, -94.44139)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Freeway Ramps (Grade-Separated) Single-Lane	2019	Raindrop shaped. Year Completed estimated (2015-2021).
Courtland, MN Nicollet Co. United States	CSAH 12 (4th St.) / US 14 EB Ramps (44.27180, -94.34138)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2023	Raindrop shaped. https://www.mprnews.org/story/2023/11/21/southwestern-minnesota-celebrates-completion-of-highway-14-expansion-project (picture about halfway down the page)
Courtland, MN Nicollet Co. United States	CSAH 12 (4th St. - 541st Ave.) / US 14 WB Ramps / 466th St. (44.27411, -94.34144)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Freeway Ramps (Grade-Separated) Single-Lane	2023	https://www.nujournal.com/news/local-news/2023/09/16/new-courtland-csah-12-highway-14-intersection-opens/
North Mankato, MN Nicollet Co. United States	Lor Ray Dr. / Howard Dr. W (44.18426, -94.03787)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2023	https://www.keyc.com/video/2023/09/01/lor-ray-howard-drive-roundabout-opens/
St Peter, MN Nicollet Co. United States	W Broadway Ave. / Sunrise Dr. (44.33175, -93.96950)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2022	Elliptical shaped. ICD = 140 ft x 130 ft. https://www.keyc.com/2022/08/15/roundabout-construction-begins-st-peter/
St Peter, MN Nicollet Co. United States	CSAH 5 (W Broadway Ave.-Fort Rd.) / 357th Ave. (44.32626, -93.98485)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2017	Entrance to St Peter High School. Year Completed estimated (2016-2020).
Niagara Falls, NY Niagara Co. United States	Robert Moses State Pkwy / John Daly Blvd. (43.08093, -79.05098)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 45.3609	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	ICD estimated from Google Maps linework.
Niagara Falls, NY Niagara Co. United States	Rainbow Blvd. / 1st St. (43.08466, -79.06161)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.2741	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Fort Erie, ON Niagara Canada	Queen St. / Goderich St. (42.90951, -78.91385)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 29.7419	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
St Catharines, ON Niagara Canada	7th Street Louth / Queen Elizabeth Way WB Ramps (43.18086, -79.30892)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.9324	Freeway Ramps (Grade-Separated) Single-Lane	2016	Right-turn bypass lane on east leg. ICD estimated from Google Maps linework.
St Catharines, ON Niagara Canada	7th Street Louth / Queen Elizabeth Way EB Ramps (43.17822, -79.30900)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5794	Freeway Ramps (Grade-Separated) Single-Lane	2016	ICD estimated from Google Maps linework.
Welland, ON Niagara Canada	Hwy 27 (E Main St.) / Hwy 406 (42.99357, -79.22298)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 57.6555	Other (At-Grade) Multilane (3+ Lane)	2013	Year Completed estimated (2010-2015). ICD estimated from Google Maps linework.
Niagara Falls, ON Niagara Canada	Rte 101 (Mountain Rd.) / Mewburn Rd. (43.13474, -79.12551)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.0366	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Lincoln, ON Niagara Canada	King St. (Hwy 81) / Green Lane Rd. (43.17965, -79.50744)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.2240	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
St Catharines, ON Niagara Canada	Suzanne Rochon-Burnett Circle (University Rd. E / Greenhouse Ln. / Ray Woodfield Dr. / John McDonald St.) (43.12007, -79.24428)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.0000	Other (At-Grade) Single-Lane	2000	Initial completion estimated (before 2003). Modified approximately 2003-2007 to realign University Road leg. ICD estimated from Google Maps linework. 21442
Niagara-on-the-Lake, ON Niagara Canada	Niagara Pkwy. / Portage Rd. (43.15820, -79.05083)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.7504	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2002-2005). ICD estimated from Google Maps linework.
Niagara-on-the-Lake, ON Niagara Canada	ON-55 (Niagara Stone Rd.) / Concession 6 Rd. (43.21083, -79.13622)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 46.0000	Other (At-Grade) Single-Lane	2014
West Lincoln, ON Niagara Canada	Regional Road 20 / S Grimsby Road 6 (43.11010, -79.56042)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2020	https://niagararegion.ca/projects/regional-road-20/default.aspx
West Lincoln, ON Niagara Canada	Regional Road 20 (St Catharines St.) / Townline Rd. (43.09175, -79.53404)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2020	https://niagararegion.ca/projects/regional-road-20/default.aspx
Niagara Falls, ON Niagara Canada	Victoria Ave. / Bridge St. / Thorold Stone Rd. (43.10884, -79.07338)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 64.0000	Other (At-Grade) Single-Lane	2022	https://www.youtube.com/watch?v=PJwDZ6g8cT0
Thorold, ON Niagara Canada	Lundy's Ln. / Barker Pkwy. (43.08044, -79.18675)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.0000	Other (At-Grade) Single-Lane	2020	Year Completed estimated (2019-2020).
Fort Erie, ON Niagara Canada	Lakeshore Rd. / Dominion Rd. (42.89540, -78.92324)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.0000	Other (At-Grade) Single-Lane	2022	https://www.niagararegion.ca/projects/dominion-road/default.aspx
Niagara-on-the-Lake, ON Niagara Canada	York Rd. (Regional Road 81) / Glendale Ave. (Regional Road 89) (43.16034, -79.16236)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.0000	Other (At-Grade) Single-Lane	2023	Add-lane right-turn bypass lanes on west and south legs. https://www.insauga.com/construction-finally-finished-on-niagara-on-the-lakes-diverging-diamond-interchange/
Fonthill, ON Niagara Canada	Summersides Blvd. / Wellspring Way (43.04571, -79.27263)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane	2017
Fonthill, ON Niagara Canada	Summersides Blvd. / Klager Ave. (43.04425, -79.27570)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2018	No splitter island on south leg. Year Completed estimated (2018-2020).
Welland, ON Niagara Canada	Hwy 140 / Netherby Rd. (42.96223, -79.20696)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2023	https://www.facebook.com/groups/241337332575147/posts/24175989435349935
Lewiston, ID Nez Perce Co. United States	Burrell Ave. / 10th St. (46.37674, -116.98085)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 18.2880	Other (At-Grade) Single-lane w/ Traversable Central Island	2023	https://www.bigcountrynewsconnection.com/idaho/roundabout-at-intersection-of-10th-and-burrell-in-lewiston-open-ahead-of-schedule/article_0bb0faba-e2d5-11ed-94af-bbe6e3f10fea.html
Lewiston Orchards, ID Nez Perce Co. United States	Powers Ave. / Thain Rd. / 14th St. (46.36927, -116.96010)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 14.8337	Other (At-Grade) Single-Lane	2017	Opened November 3, 2017. https://lmtribune.com/northwest/roundabout-draws-a-yellow-flag/article_137af938-33cf-51a8-b75e-5c38559e8800.html ICD estimated from Google Maps linework.
Lewiston, ID Nez Perce Co. United States	Snake River Ave. / Southway Ave. (46.40090, -117.03531)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.4156	Other (At-Grade) Multilane (2 Lane, unspecified)	2013	https://www.facebook.com/LewistonPublicWorks/posts/street-work-for-the-roundabout-at-southway-avenue-and-snake-river-avenue-schedul/614436265234323/ ICD estimated from Google Maps linework.
Covington, GA Newton Co. United States	SR 36 / SR 212 (33.42965, -83.84713)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.9218	Other (At-Grade) Single-Lane	2015	Flashing beacon showing yellow in all directions. ICD estimated from Google Maps linework.
Seneca, MO Newton Co. United States	US 60 / MO-43 (Cherokee Ave.) (36.82445, -94.61057)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 52.5817	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.