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
Onalaska, WI La Crosse Co. United States	Sand Lake Rd. / County Hwy OT (43.92355, -91.23538)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2019
Onalaska, WI La Crosse Co. United States	STH 35 / Riders Club Rd. / Sunset Vista Rd. (43.90711, -91.24497)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 43.0236	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Onalaska, WI La Crosse Co. United States	STH 35 / Mason St. (43.90999, -91.24578)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 41.3007	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Onalaska, WI La Crosse Co. United States	Sand Lake Rd. / Riders Club Rd. (43.90548, -91.22078)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.7692	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Onalaska, WI La Crosse Co. United States	E Main St. / Green Coulee Rd. (43.88407, -91.20926)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2021	https://www.news8000.com/new-two-lane-roundabout-opens-in-onalaska/
Onalaska, WI La Crosse County United States	East Ave. N / Riders Club Rd. (43.90543, -91.23514)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-lane w/ Traversable Central Island	2023	https://www.facebook.com/cityofonalaskawisconsin/posts/construction-of-a-new-compact-roundabout-at-the-intersection-of-east-avenue-and-/544121814532976/
Onalaska, WI La Crosse Co. United States	CR PH / Theater Rd. (43.87249, -91.19540)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2025	https://www.wizmnews.com/2025/05/27/onalaska-adding-roundabout-at-theater-road-and-county-ph/
Omsk, Omsk Omsk Russia	3-ya Yeniseyskaya ulitsa / Leningradskiy (54.96635, 73.34569)	Rotary Existing	Unknown Unknown	3 Approaches 0 Driveways	Other (At-Grade) Multilane (3+ Lane)
Omsk, Omsk Omsk Russia	M51 / Volgogradskaya ulitsa / ulitsa Lukashevicha (54.98794, 73.26589)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways	Other (At-Grade) Unknown		Parking in central island.
Omsk, Omsk Omsk Russia	M51 / poselok Iskra SOSN (54.88026, 73.35397)	Roundabout Existing	All-Way Yield None	3 Approaches 2 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Omokoroa, Bay of Plenty Western Bay of Plenty New Zealand	Omokoroa Rd. / Kayelene Pl. / Lynley Park Dr. (-37.65097, 176.02834)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Omokoroa, Bay of Plenty Western Bay of Plenty New Zealand	Omokoroa Rd. / Settler Ave. / Ridge Dr. (-37.65453, 176.02504)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Omokoroa, Bay of Plenty Western Bay of Plenty New Zealand	Omokoroa Rd. / Tralee St. / Margaret Dr. (-37.64103, 176.03928)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Omokoroa, Bay of Plenty Western Bay of Plenty New Zealand	Hamurana Rd. / McDonnell St. / Coppelia Ave. (-37.63349, 176.04500)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Omokoroa, Bay of Plenty Western Bay of Plenty New Zealand	Omokoroa Rd. / Western Ave. / Parkland Rise (-37.64917, 176.03056)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Omokoroa, Bay of Plenty Western Bay of Plenty New Zealand	Lynley Park Dr. / Holyoake Terrace / Olive Close (-37.65231, 176.02923)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Ommel, North Brabant Gemeente Asten Netherlands	Deurneseweg / Ommelse Bos / Busserdijk (51.42913, 5.75224)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Omma, Skåne County Sjöbo kommun Sweden	Rte 13 / Ommadalsvägen / Esplanaden (55.64274, 13.68669)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2015	Completed between 2012 and 2015
Omaha, NE Douglas Co. United States	S 201st Ave. / C St. (41.22340, -96.22902)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2004-2006).
Omaha, NE Douglas Co. United States	S HWS Cleveland Blvd. / George B Lake Pkwy. (41.22537, -96.22721)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2004-2005).
Omaha, NE Douglas Co. United States	S HWS Cleveland Blvd. / 197th St. (41.25016, -96.22379)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2003).
Omaha, NE Douglas Co. United States	Grebe St. / N 126th St. (41.33402, -96.11002)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2005-2009).
Omaha, NE Douglas Co. United States	Read St. / N 126th St. (41.32377, -96.11005)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2001	Year Completed estimated (1999-2003).
Omaha, NE Sarpy Co. United States	S 186th St. / Chandler St. (41.18404, -96.20711)	Other Existing	Unknown Unknown	3 Approaches 8 Driveways 0.0000	Other (At-Grade) Unknown
Omaha, NE Douglas Co. United States	Military Rd. / N Oaks Blvd. (41.31222, -96.05987)	Roundabout Existing	All-Way Yield None	3 Approaches 2 Driveways 30.4800	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2006-2009).
Omaha, NE Douglas Co. United States	Girard St. / N 108th Ave. (41.32549, -96.08277)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.4320	Other (At-Grade) Single-Lane	2005
Omaha, NE Douglas Co. United States	Potter St. / N 110th Ave. (41.32809, -96.08515)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2004-2005).
Omaha, NE Douglas Co. United States	N 122nd St. / Whitmore St. / Read St. (41.32106, -96.10421)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2003	Year Completed estimated (1999-2003).
Omaha, NE Douglas Co. United States	S 31st Ave. (41.25865, -95.95899)	Other Existing	Unknown Unknown	2 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		Parking along circulatory roadway; pedestrian access to central island.
Omaha, NE Douglas Co. United States	Crown Point Ave. / (east school access) (41.31280, -96.03877)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 25.9080	Other (At-Grade) Single-lane w/ Traversable Central Island	2020	Year Completed estimated (2020-2021).
Omaha, NE Douglas Co. United States	Crown Point Ave. / (west school access) (41.31253, -96.04291)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 25.9080	Other (At-Grade) Single-lane w/ Traversable Central Island	2020	Year Completed estimated (2020-2021).
Omaha, NE Douglas Co. United States	Crown Point Ave. / Wenninghoff Rd. / (parking) (41.31139, -96.04585)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2020	Approach from parking has no splitter island.
Omaha, NE Douglas Co. United States	Crown Point Ave. / N 78th St. (41.31278, -96.03344)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.5280	Other (At-Grade) Single-Lane	2021	Elliptical shaped. ICD = 110 ft x 95 ft. Year Completed estimated (2020-2021).
Omaha, NE Douglas Co. United States	S 194th Ave. / I St. (41.21624, -96.21918)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2004-2005).
Omaha, NE Douglas Co. United States	Orchard Ave. / Holmes St. / S 194th Ave. (41.20854, -96.21950)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2001	Year Completed estimated (1999-2003).
Omaha, NE Douglas Co. United States	S HWS Cleveland Blvd. / Orchard Ave. / N St. (41.20925, -96.22413)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2004-2005).
Omaha, NE Douglas Co. United States	S HWS Cleveland Blvd. / L St. (41.21218, -96.22254)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2004-2005).
Omaha, NE Douglas Co. United States	S 198th St. / J St. (41.21475, -96.22459)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2004-2005).
Omaha, NE Douglas Co. United States	S 202nd St. / G St. (41.21786, -96.22948)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2006).
Omaha, NE Douglas Co. United States	S 189th St. / Adams St. / Drexel St. (41.19322, -96.21053)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9560	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2006).
Omaha, NE Douglas Co. United States	S 195th St. / Y St. / Z St. (41.19722, -96.22094)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2006).
Omaha, NE Douglas Co. United States	Adams St. / S 195th St. (41.19364, -96.21996)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2006	Opened with northwest and northeast legs 2005-2006. Southwest leg added 2015-2016.
Omaha, NE Douglas Co. United States	S 63rd St. / Shirley St. (41.24148, -96.00960)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-lane w/ Traversable Central Island	2017
Omaha, NE Douglas Co. United States	N Saddle Creek Rd. / Country Club Ave. / Seward St. / 50th St. / Happy Hollow Rd. (41.27431, -95.99039)	Roundabout Existing	Unknown Unknown	8 Approaches 0 Driveways 28.7235	Other (At-Grade) Single-Lane	2003	Dogbone/peanut shape. ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	S 42nd St. / Q St. (east) (41.20548, -95.97640)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 32.3480	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	S 42nd St. / Q St. (west) (41.20606, -95.97769)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 46.7245	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	HWS Cleveland Blvd. / Blue Sage Pkwy. / William St. (41.24547, -96.22489)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.3482	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2003). Fourth leg added 2006-2009. ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	William St. / S 196th St. (41.24540, -96.22248)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 24.2462	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2003). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	S HWS Cleaveland Blvd. / Shadow Ridge Dr. (41.24046, -96.22126)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.8403	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2003). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	S HWS Cleveland Blvd. / Marinda St. (41.23787, -96.22116)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.9433	Other (At-Grade) Single-Lane	2002	Fourth leg stubbed. Year Completed estimated (1999-2003). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	S HWS Cleveland Blvd. / Gold St. (41.23532, -96.21996)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.1295	Other (At-Grade) Single-Lane	2006	Two legs stubbed. Year Completed estimated (2005-2006). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	Potwin St. / S 135th St. (41.20792, -96.12274)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.5497	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	N 21st St. / Charles St. (41.27319, -95.94354)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.5192	Other (At-Grade) Single-Lane	2001	Year Completed estimated (1999-2003). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	Weber St. / N 75th St. / N 76th St. (41.32636, -96.02877)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.2161	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	Wenninghoff Rd. / Read St. (41.32367, -96.04434)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.3202	Other (At-Grade) Single-Lane	2008	No splitter islands on Read St. Year Completed estimated (2006-2009). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	Wenninghoff Rd. / Sheffield St. / Craig Ave. (41.32955, -96.04776)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.4212	Other (At-Grade) Single-Lane	2008	Year Completed estimated (2006-2009). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	Roanoke Blvd. / N 118 St. (41.30231, -96.09753)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.7109	Other (At-Grade) Single-Lane	2005	Older traffic circle (before 1993) with unknown traffic control. Appears to have been converted to a roundabout with splitter islands on north and south legs around 2005. ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	Saddlebrook Dr. / N 147th St. / N 148th St. (41.31173, -96.14448)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.2954	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2003). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	Fowler Ave. / N 160th St. (41.30164, -96.16345)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.1225	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	Butler Ave. / N 162nd St. (41.30070, -96.16730)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 25.1229	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005-2006). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	N 162nd St. / Grand Ave. (41.30399, -96.16881)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways	Other (At-Grade) Single-Lane	2006
Omaha, NE Douglas Co. United States	Grand Ave. / N 166th St. (41.30237, -96.17353)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.3001	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	N 171st St. / Emmet St. (41.28947, -96.18274)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 22.4350	Other (At-Grade) Single-Lane	2003	Year Completed estimated (1999-2003). ICD estimated from Google Maps linework.
Omaha, NE Douglas Co. United States	N 172nd St. / Locust St. (41.28520, -96.18319)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.4365	Other (At-Grade) Single-Lane	2001	Year Completed estimated (1999-2003). ICD estimated from Google Maps linework.
Olympia Heights, FL Miami-Dade Co. United States	SW 48th St. / SW 89th Pl. (25.72428, -80.34123)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.9456	Other (At-Grade) Single-Lane	2010
Olympia Heights, FL Miami-Dade Co. United States	SW 122nd Ave. / SW 47th St. (25.72250, -80.39130)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2011-2013).
Olympia, WA Thurston Co. United States	Eskridge Blvd. SE / Henderson Blvd. SE (47.02326, -122.87856)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2020	https://thejoltnews.com/stories/city-transportation-engineering-supervisor-explains-henderson-roundabout,267?
Olympia, WA Thurston Co. United States	Henderson Blvd. SE / Carlyon Ave. SE (47.01989, -122.87768)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-lane w/ Traversable Central Island	2020	https://thejoltnews.com/stories/city-transportation-engineering-supervisor-explains-henderson-roundabout,267?
Olympia, WA Thurston Co. United States	SR 510 / Meridian Rd. SE (47.01799, -122.72703)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2019	https://wsdot.wa.gov/projects/sr510/meridian-rd-roundabout/home
Olympia, WA Thurston Co. United States	Marvin Rd. SE / Lake Forest Dr. SE / Oakwood St. SE (47.01411, -122.75428)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2019
Olympia, WA Thurston Co. United States	Chehalis Western Trl. / Woodland Trl. (47.03914, -122.83937)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 15.2400	Other (At-Grade) Single-lane w/ Traversable Central Island	2015	Bicycle trail to bicycle trail only roundabout.
Olympia, WA Thurston Co. United States	Marvin Rd. NE / 41st Ave. NE (47.09046, -122.78075)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0040	Other (At-Grade) Single-Lane	2014
Olympia, WA Thurston Co. United States	Boulevard Rd. / Morse-Merryman Rd. SE (47.01817, -122.86518)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 38.2699	Other (At-Grade) Single-Lane	2018	ICD estimated from Google Maps linework.
Olympia, WA Thurston Co. United States	Olympic Way NW / 4th Ave. W / 5th Ave. W (47.04422, -122.91200)	Roundabout Existing	All-Way Yield Active Pedestrian Warning (flashing yellow)	4 Approaches 0 Driveways 38.2512	Other (At-Grade) Multilane (2 Lane, unspecified)	2004	Opened March 2004. Functional Class: Arterial ICD estimated from Google Maps linework.
Olympia, WA Thurston Co. United States	Olympic Way NW / Harrison Ave. NW / W Bay Dr. NW (47.04582, -122.91330)	Roundabout Existing	All-Way Yield Active Pedestrian Warning (flashing yellow)	3 Approaches 0 Driveways 34.9947	Other (At-Grade) Multilane (2 Lane, unspecified)	2004	Opened March 2004. Functional Class: Arterial ICD estimated from Google Maps linework.
Olympia, WA Thurston Co. United States	Evergreen Pkwy. NW / McCann Plaza (47.06936, -122.97440)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 42.3006	Other (At-Grade) Single-Lane	2005	Entrance to college. Opened November 2005. ICD estimated from Google Maps linework.
Olympia, WA Thurston Co. United States	14th Ave. SE / E Bay Dr. / Henderson Blvd. SE (47.02971, -122.89140)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 33.3772	Other (At-Grade) Single-Lane	2005	Opened July 2005. Southbound right turn bypass lane. ICD estimated from Google Maps linework.
Olympia, WA Thurston Co. United States	Capitol Way N / Market St. NE / Corky Ave. NW / (parking) (47.05005, -122.90244)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0520	Other (At-Grade) Single-Lane	1995	Painted splitter islands. June 1995.
Olympia, WA Thurston Co. United States	Boulevard Rd. SE / Log Cabin Rd. SE (47.01433, -122.86520)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.0870	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	Opened November 2009. Left-turn only lanes on north and south legs with spiralling. ICD estimated from Google Maps linework.
Olympia, WA Thurston Co. United States	Jefferson St SE / 14th Ave. SE (47.03555, -122.89581)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	4 Approaches 0 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2010	Double-left turn from north leg; double-right turn from south leg. October 2010.
Olympia, WA Thurston Co. United States	Yelm Hwy SE / Boulevard Rd. SE (47.00397, -122.86540)	Roundabout Existing	All-Way Yield Rectangular Rapid Flashing Beacon (RRFB)	3 Approaches 1 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	May 2011. Right-turn-only lane on north leg. Located about 1000 feet from Centennial Elementary School and serves as a walking and school bus route.
Olympia, WA Thurston Co. United States	Yelm Hwy SE / Brassfield Rd. SE (47.00372, -122.87309)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 45.7200	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2011	May 2011.
Olympia, WA Thurston Co. United States	18th Ave. SE / Fones Rd. SE (47.03250, -122.84697)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2010	Double-right turn on north leg. October 2010.
Olympia, WA Thurston Co. United States	18th Ave. SE / Hoffman Rd. SE / Ontario St. SE (47.03250, -122.84959)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.8175	Other (At-Grade) Single-Lane	2010	Opened October 2010. ICD estimated from Google Maps linework.
Olympia, WA Thurston Co. United States	Yelm Hwy. SE / Meridian Rd. SE (46.98551, -122.74087)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane	2022	https://yelm-meridian-thurston.hub.arcgis.com/
Olsztyn, Warmińsko-mazurskie Olsztyn Poland	S27 (Bałtycka - Grunwaldzka) / Aleja Roberta Schumana / Artyleryjska (53.77795, 20.46381)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		Concentric striped circulatory roadway.
Olsztyn, Warmińsko-mazurskie Olsztyn Poland	Biskupa Tomasza Wilczyńskiego / Księdza Jerzego Popiełuszki / Księdza Jerzego Popiełuszki / Generała Józefa Hallera (53.73934, 20.47865)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Ølstykke, Capital Region Denmark	Sekundærrute 211 (Frederikssundsvej) / Frederiksborgvej (55.78467, 12.15191)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Ølstykke, Capital Region Denmark	Frederiksborgvej / Udlejrevej (55.78640, 12.15211)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Ølstykke, Capital Region Denmark	Frederiksborgvej / Ny Toftegårdsvej (55.79191, 12.15403)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Ølstykke, Capital Region Denmark	Ring Nord / Ny Toftegårdsvej (55.78735, 12.16912)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Olomouc, Olomouc Olomouc Czechia	II/448 (Studentská - Dobrovského) / II/446 (Na Střelnici) / Zámečnická (49.59742, 17.25250)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane
Olomouc, Olomouc Olomouc Czechia	II/635 (Lipenská) / Hamerská / U sušírny (49.58907, 17.31350)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)		Turbo roundabout.
Olomouc, Olomouc Olomouc Czechia	I/55 (Týnecká) / II/570 (Keplerova) / III/4359 (Týnecká) (49.57033, 17.30127)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)
Olofström, Blekinge County Olofström Sweden	Rte 15 (Pukaviksvägen) / Idrottsvägen (56.26854, 14.52298)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2021	Used to be a T-intersection with one-way stop. Fourth arm added in 2020/2021.
Olofström, Blekinge County Olofström Sweden	Rte 116 / Petreforsgatan (56.27956, 14.52069)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.6240	Other (At-Grade) Single-Lane	2021
Olney, MD Montgomery Co. United States	Martins Dairy Cir. / Old Baltimore Rd. (39.13345, -77.07382)	Other Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		Painted splitter islands.
Olney, MD Montgomery Co. United States	Wickham Rd. / Broom Dr. (39.15708, -77.09362)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Single-Lane		No splitter islands.
Olney, MD Montgomery Co. United States	Martins Dairy Cir. / Gooseneck Terrace (39.13176, -77.07439)	Other Existing	Unknown Unknown	3 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown
Olney, MD Montgomery Co. United States	Fox Valley Dr. / Hillcroft Dr. (39.12441, -77.07962)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 0.0000	Other (At-Grade) Unknown		No splitter islands.