| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Bozeman,
                MT Gallatin Co. United States | Laurel Pkwy. / Annie St. (45.68916, -111.11383) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2003 | |
| Bozeman,
                MT Gallatin Co. United States | Laurel Pkwy. / Glenellen Dr. / Sherwood Way (45.69050, -111.11401) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 38.1000 | Other (At-Grade) Single-Lane | 2003 | |
| Bozeman,
                MT Gallatin Co. United States | Cascade St. / Kimball Ave. (45.68162, -111.09510) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 19.1915 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Bozeman,
                MT Gallatin Co. United States | Cascade St. / Clifden Dr. (45.68115, -111.09950) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 19.1916 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Bozeman,
                MT Gallatin Co. United States | W College St. / S 11th Ave. (45.67113, -111.05200) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.2247 | Other (At-Grade) Single-Lane | 2010 | Year Completed estimated (2009-2011). ICD estimated from Google Maps linework. | 
| Bozeman,
                MT Gallatin Co. United States | Cottonwood Rd. / Stucky Rd. (45.65655, -111.10392) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 33.3914 | Other (At-Grade) Single-Lane | 2018 | ICD estimated from Google Maps linework. | 
| Bozeman,
                MT Gallatin Co. United States | W Oak St. / Davis Ln. (45.69299, -111.08300) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 34.2039 | Other (At-Grade) Single-Lane | 2017 | ICD estimated from Google Maps linework. | 
| Bozeman,
                MT Gallatin Co. United States | Catron St. / Blackbird Dr. (45.71193, -111.07903) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 20.8490 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Bozeman,
                MT Yellowstone Co. United States | Bench Blvd. / Hilltop Rd. / Yellowstone River Rd. (45.81289, -108.46580) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.1305 | Other (At-Grade) Single-Lane | 2013 | Right-turn-only lane on south leg. ICD estimated from Google Maps linework. | 
| Bozeman,
                MT Gallatin Co. United States | Catron St. / Max Ave. (45.71218, -111.06908) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 24.3840 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2021 | |
| Bozeman,
                MT Gallatin Co. United States | S 11th Ave. / Arnold St. (45.65298, -111.05215) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.5760 | Other (At-Grade) Single-Lane | 2018 | |
| Bozeman,
                MT Gallatin Co. United States | W Oak St. / Cottonwood Rd. (45.69298, -111.10367) | Roundabout Existing | All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK) | 4 Approaches 0 Driveways 56.3880 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2020 | Right-turn-only lanes on north and south legs, designed for future conversion to through lanes to make the roundabout 2x2. | 
| Bozeman,
                MT Gallatin Co. United States | S 11th Ave. / W Graf St. (45.64966, -111.05320) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.5760 | Other (At-Grade) Single-Lane | 2017 | |
| Bozeman,
                MT Gallatin Co. United States | W Graf St. / S 3rd Ave. (45.64930, -111.04692) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 35.0520 | Other (At-Grade) Single-Lane | 2020 | |
| Bozeman,
                MT Gallatin Co. United States | W Graf St. / S 17th Ave. (45.64943, -111.06043) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 36.5760 | Other (At-Grade) Single-Lane | 2017 | |
| Bozeman,
                MT Gallatin Co. United States | Cattail St. / Max Ave. (45.70770, -111.06912) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | 2021 | |
| Bozeman,
                MT Gallatin Co. United States | Baxter Ln. / Collonwood Rd. / Harper Puckett Rd. (45.70022, -111.10372) | Roundabout Existing | All-Way Yield Pedestrian Hybrid Beacon (PHB, HAWK) | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2024 | Year Completed estimated (2023-2024). https://www.kbzk.com/news/local-news/baxter-lane-ready-to-reopen-for-traffic-this-week-after-months-of-construction. | 
| Boynton Hills,
                FL Palm Beach Co. United States | NW 1st St. / NW 9th Ave. (26.53508, -80.06594) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Boynton Hills,
                FL Palm Beach Co. United States | NW 1st St. / NW 7th Ct. / NW 7th Ave. (26.53358, -80.06589) | Other Existing | Unknown Unknown | 5 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | No splitter islands. | |
| Boynton Hills,
                FL Palm Beach Co. United States | NW 5th Ave. / NW 5th Ct. / NW 1st St. (26.53151, -80.06590) | Other Existing | Unknown Unknown | 6 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | No splitter islands. | |
| Boynton Beach,
                FL Palm Beach Co. United States | Verona Lakes Blvd. / Cove Point Dr. (26.55694, -80.19431) | Unknown Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Boynton Beach,
                FL Palm Beach Co. United States | Grand Prix Ln. / Jodhpur Way (26.54180, -80.18611) | Unknown Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Boynton Beach,
                FL Palm Beach Co. United States | Jodhpur Way / Show Ring Way (26.54309, -80.18611) | Unknown Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Boynton Beach,
                FL Palm Beach Co. United States | Grand Prix Ln. / Grand Prix Ln. (26.54159, -80.18202) | Unknown Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Boynton Beach,
                FL Palm Beach Co. United States | Grand Prix Ln. / Grand Prix Ln. (26.54014, -80.18275) | Unknown Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Boynton Beach,
                FL Palm Beach Co. United States | Equus Cir. / Equus Cir. (26.54310, -80.19028) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands. | |
| Boynton Beach,
                FL Palm Beach Co. United States | Equus Cir. / Stone Pier Dr. (26.54341, -80.19471) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 1 Driveways 33.5280 | Other (At-Grade) Single-Lane | 2006 | |
| Boynton Beach,
                FL Palm Beach Co. United States | Equus Cir. / Stone Pier Dr. (26.53987, -80.19491) | Roundabout Existing | All-Way Yield None | 3 Approaches 2 Driveways 33.5280 | Other (At-Grade) Single-Lane | 2006 | |
| Boynton Beach,
                FL Palm Beach Co. United States | Equus Cir. / Three Rail Dr. (26.54322, -80.19888) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways 33.5280 | Other (At-Grade) Single-Lane | 2006 | Year Completed estimated (2006-2007). | 
| Boynton Beach,
                FL Palm Beach Co. United States | Equus Cir. / Three Rail Dr. (south) (26.53981, -80.19912) | Roundabout Existing | All-Way Yield None | 3 Approaches 2 Driveways 33.5280 | Other (At-Grade) Single-Lane | 2005 | |
| Boynton Beach,
                FL Palm Beach Co. United States | Cobblestone Creek Dr. / Royal Cobblestone Way (26.53373, -80.18779) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Boynton Beach,
                FL Palm Beach Co. United States | (unknown) (26.52962, -80.20179) | Other Existing | All-Way Stop Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Boynton Beach,
                FL Palm Beach Co. United States | Jewelwood Dr. / White Water Lily Way (26.52085, -80.16803) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 28.9560 | Other (At-Grade) Single-Lane | 2008 | |
| Boynton Beach,
                FL Palm Beach Co. United States | Chesapeake Cir. / Nautica Sound Blvd. / (parking) (26.56804, -80.10103) | Other Existing | All-Way Stop Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Boynton Beach,
                FL Palm Beach Co. United States | Appalachian Ridge Rd. / Caribou Ridge Rd. / Snowmass Peak Way (26.48714, -80.17804) | Unknown Existing | Unknown Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Boynton Beach,
                FL Palm Beach Co. United States | Quantum Blvd. / (parking) (26.55225, -80.08447) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.6720 | Other (At-Grade) Single-Lane | 2003 | Year Completed estimated (2002-2004). | 
| Boynton Beach,
                FL Palm Beach Co. United States | Grand Blvd. / NW 3rd Ct. / NW 3rd Ave. (26.52999, -80.06580) | Other Existing | All-Way Stop Unknown | 6 Approaches 0 Driveways 30.9884 | Other (At-Grade) Single-Lane | Stop-controlled entries. Functional Class: Local ICD estimated from Google Maps linework. | |
| Boynton Beach,
                FL Palm Beach Co. United States | Hagen Ranch Rd. / Majestic Palm Dr. / Palm Isles Dr. (26.53700, -80.16410) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 38.4660 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Boynton Beach,
                FL Palm Beach Co. United States | Hagen Ranch Rd. / Treviso Ln. (26.54100, -80.16380) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.6431 | Other (At-Grade) Single-Lane | 1999 | ICD estimated from Google Maps linework. | 
| Boynton Beach,
                FL Palm Beach Co. United States | Hagen Ranch Rd. / Charleston Shores Blvd. (26.56520, -80.15560) | Roundabout Existing | All-Way Yield Active Pedestrian Warning (flashing yellow) | 4 Approaches 0 Driveways 23.5012 | Other (At-Grade) Single-Lane | 1998 | ICD estimated from Google Maps linework. | 
| Boynton Beach,
                FL Palm Beach Co. United States | Hagen Ranch Rd. / Gateway Blvd. / Aberdeen Lakes Rd. (26.54660, -80.16390) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 23.5051 | Other (At-Grade) Single-Lane | 2000 | Date estimated. ICD estimated from Google Maps linework. | 
| Boynton Beach,
                FL Palm Beach Co. United States | Hagen Ranch Rd. / Le Chalet Blvd. (26.55650, -80.15710) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 19.2298 | Other (At-Grade) Single-Lane | 2000 | Date estimated. ICD estimated from Google Maps linework. | 
| Boynton Beach,
                FL Palm Beach Co. United States | Wellesley Rd. / Wheatley Rd. (26.56313, -80.09136) | Other Existing | All-Way Stop Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Boyne Island,
                Queensland Gladstone Australia | Malpas St. / Handley Dr. (-23.96233, 151.34093) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Boyds,
                MD Montgomery Co. United States | Crazy Quilt Ct. (39.16123, -77.30454) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Box Hill,
                New South Wales The Hills Shire Australia | Cataract Rd. / Valletta Dr. (-33.62987, 150.90078) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Box Elder,
                SD Pennington Co. United States | Davis Dr. / Schnever St. (44.13351, -103.07564) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2011 | At Ellsworth Air Force Base just past entrance gate. | 
| Box Elder,
                SD Pennington Co. United States | Cheyenne Blvd. / Northern Lights Blvd. (44.09647, -103.13936) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 52.3215 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Year Completed estimated (2006-2010). ICD estimated from Google Maps linework. | 
| Bowral,
                New South Wales Wingecarribee Australia | B73 (Kangaloon Rd. - Moss Vale Rd.) / Moss Vale Rd. / Funston St. (-34.48465, 150.41594) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Bowmanville,
                ON Durham Canada | Holt Rd. / Hwy 401 WB Ramps (43.88557, -78.72295) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 40.4568 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2016 | ICD estimated from Google Maps linework. | 
| Bowmanville,
                ON Durham Canada | Holt Rd. / Hwy 401 EB Ramps (43.88303, -78.72186) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 37.8761 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2016 | ICD estimated from Google Maps linework. | 
| Bowmanville,
                ON Durham Canada | Holt Rd. / Energy Dr. (43.88136, -78.72109) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 47.3464 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2016 | ICD estimated from Google Maps linework. | 
| Bowmanville,
                ON Durham Canada | Remmington St. / Green Rd. (43.89809, -78.70723) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 24.0969 | Other (At-Grade) Single-Lane | 2009 | ICD estimated from Google Maps linework. | 
| Bowmanville,
                ON Durham Canada | Green Rd. / Aspen Springs Dr. (43.90213, -78.70898) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 24.9558 | Other (At-Grade) Single-Lane | 2009 | ICD estimated from Google Maps linework. | 
| Bowmanville,
                ON Durham Canada | Green Rd. / Clarington Blvd. / Boswell Dr. (43.90509, -78.71026) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.0000 | Other (At-Grade) Single-Lane | 2019 | East leg added with construction of roundabout. Year Completed estimated (2018-2019). | 
| Bowmanville,
                ON Durham Canada | Port Darlington Rd. / East Shore Dr. (43.89136, -78.65940) | Other Existing | All-Way Yield None | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | No splitter islands. | |
| Bowmanville,
                ON Durham Canada | Concession Road 3 / Middle Rd. / Scugog St. (43.93418, -78.70130) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.0000 | Other (At-Grade) Single-Lane | 2018 | Year Completed estimated (2017-2018). | 
| Bowling Green,
                OH Wood Co. United States | SR 64 (E Wooster St.) / Campbell Hill Rd. / Alumni Dr. (41.37449, -83.62357) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2023 | https://bgindependentmedia.org/another-learning-curve-in-bg-this-one-a-multi-lane-roundabout/ | 
| Bowling Green,
                OH Wood Co. United States | Napoleon Rd. / Campbell Hill Rd. (41.36356, -83.62468) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2022 | https://bgindependentmedia.org/new-roundabout-in-bg-to-reduce-crashes-at-campbell-hill-and-napoleon-roads/ | 
| Bowling Green,
                MO Pike Co. United States | US 61 Business / MO 161 / Court St (39.33344, -91.19504) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 45.7200 | Other (At-Grade) Single-Lane | 2022 | https://www.modot.org/roundabout-bowling-green | 
| Bowling Green,
                KY Warren Co. United States | Parkside Ct. / Cove Dr. (36.99073, -86.47131) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 22.8600 | Other (At-Grade) Single-Lane | 2020 | Year Completed estimated (2018-2022). | 
| Bowling Green,
                KY Warren Co. United States | N Sunrise Dr. / Cove Dr. / Woodway St. (36.99346, -86.47154) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 22.8600 | Other (At-Grade) Single-Lane | 2020 | Year Completed estimated (2018-2022). | 
| Bowling Green,
                KY Warren Co. United States | Westen St. / Rockingham Ave. (36.96741, -86.44234) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2022 | https://www.wnky.com/new-roundabout-opens-near-westen-street/ | 
| Bowling Green,
                KY Warren Co. United States | Shive Ln. / Ken Bale Blvd. (36.94719, -86.41852) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2020 | https://www.facebook.com/citybgky/photos/the-shive-lane-roundabout-is-officially-open-as-of-right-now-happy-driving-/10157396941342543 | 
| Bowling Green,
                KY Warren Co. United States | Crossings Blvd. / Chasefield Ave. / Pointe Ave. (36.93885, -86.43270) | Unknown Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | Upgraded from a neighborhood traffic circle to roundabout between 2013 and 2021 (SV) | |
| Bowling Green,
                KY Warren Co. United States | Ashley Cir. / Westen St. (36.96894, -86.43656) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 30.4800 | Other (At-Grade) Single-Lane | 2023 | https://www.wbko.com/2023/06/20/construction-begins-roundabout-ashley-circlewesten-street-intersection/ | 
| Bowling Green,
                KY Warren Co. United States | Westen St. / Patrick Way (36.96519, -86.44527) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 30.4800 | Other (At-Grade) Single-Lane | 2024 | https://www.youtube.com/watch?v=degpDxeAwUM | 
| Bowling Green,
                KY Warren Co. United States | Westen St. / Highland Way (36.96372, -86.44766) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 30.4800 | Other (At-Grade) Single-Lane | 2024 | https://www.facebook.com/citybgky/posts/the-westen-street-and-highland-way-roundabout-project-was-anticipated-to-have-be/906701484824529/ | 
| Bowling Green,
                KY Warren Co. United States | Frist Blvd. / Hub Blvd. (36.96968, -86.40929) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.1480 | Other (At-Grade) Single-Lane | 2019 | |
| Bowling Green,
                KY Warren Co. United States | Frist Blvd. / Golden Autumn Way (36.96509, -86.40386) | Other Existing | All-Way Yield None | 2 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2018 | Lane change required to make left turn. | 
| Bowling Green,
                KY Warren Co. United States | Ken Bale Blvd. / Middle Bridge Rd. W (36.95185, -86.41547) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.1480 | Other (At-Grade) Single-Lane | 2022 | |
| Bowling Green,
                KY Warren Co. United States | Fieldstone Blvd. / Cave Springs Ave. (36.92962, -86.42874) | Other Existing | All-Way Stop None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Bowling Green,
                KY Warren Co. United States | Chasefield Ave. / Andover St. (36.93716, -86.43202) | Other Existing | All-Way Yield None | 3 Approaches 1 Driveways 0.0000 | Other (At-Grade) Single-Lane | No splitter islands. | |
| Bowling Green,
                KY Warren Co. United States | Girkin Rd. / Mount Olivet Rd. (37.04399, -86.34957) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 71.4961 | Other (At-Grade) Single-Lane | 2017 | ICD estimated from Google Maps linework. | 
| Bowling Green,
                KY Warren Co. United States | Nashville Rd. / University Blvd. / Loving Way (36.97750, -86.45649) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 53.4305 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2014 | ICD estimated from Google Maps linework. | 
| Bowling Green,
                OH Wood Co. United States | E Wooster St. / I-75 SB Ramps (41.37453, -83.61786) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 34.0567 | Freeway Ramps (Grade-Separated) Single-Lane | 2019 | https://nbc24.com/news/local/wooster-street-roundabouts-to-open-in-bowling-green. ICD estimated from Google Maps linework. | 
| Bowling Green,
                OH Wood Co. United States | E Wooster St. / I-75 NB Ramps (41.37445, -83.61400) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 34.0568 | Freeway Ramps (Grade-Separated) Single-Lane | 2019 | https://nbc24.com/news/local/wooster-street-roundabouts-to-open-in-bowling-green. ICD estimated from Google Maps linework. | 
| Bowling Green,
                KY Warren Co. United States | Smallhouse Rd. / Elrod Rd. (36.92910, -86.44901) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2020 | https://www.wbko.com/2020/10/09/first-county-funded-roundabout-in-bowling-green-ready-for-drivers/ | 
| Bowling Green,
                MO Pike Co. United States | US 61 Business / Sharry St. / Town Center Dr. / (unknown) (39.33272, -91.18290) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 57.2748 | Other (At-Grade) Single-Lane | 2009 | Year Completed estimated (2007-2009). ICD estimated from Google Maps linework. | 
| Bowling,
                Scotland West Dunbartonshire United Kingdom | Dunglass Roundabout [A82 (Dumbarton Rd. - Great Western Rd.) / A814 (Dumbarton Rd.) (55.93184, -4.50331) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways | Other (At-Grade) Multilane (2 Lane, 2x1 max) | ||
| Bowie,
                MD Prince George's Co. United States | Faircrest Circle (38.92760, -76.84166) | Other Existing | Unknown Unknown | 2 Approaches 18 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Bowie,
                MD Prince George's Co. United States | Melford Blvd. / Science Dr. (38.96089, -76.71320) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 43.6480 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Concentric striping in circulatory roadway. ICD estimated from Google Maps linework. | 
| Bowie,
                MD Prince George's Co. United States | Melford Blvd. / Curie Dr. (38.95842, -76.70683) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 78.9406 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Bowen,
                Queensland Australia | Golf Links Rd. / Tollington Rd. / Argyle Park Rd. / Mackenzie St. (-19.98637, 148.23723) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Bowen,
                Queensland Whitsunday Australia | Horseshoe Bay Rd. / Rose Bay Rd. (-19.98705, 148.25469) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Bowen,
                Queensland Whitsunday Australia | Richmond Rd. / Argyle Park Rd. / Salisbury Crescent (-20.00064, 148.23560) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | Elliptical shaped. | |
| Bowen,
                Queensland Whitsunday Australia | Livingstone St. / Herbert St. (-20.00752, 148.24339) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Bowen,
                Queensland Whitsunday Australia | Livingstone St. / Leichhardt St. (-20.01083, 148.23745) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Bowen,
                Queensland Whitsunday Australia | Livingstone St. / Gregory St. (-20.00864, 148.24137) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Bowen,
                Queensland Whitsunday Australia | Santa Barbara Parade / Peter Wyche Dr. / Hay St. / Henry Darwen Dr. (-20.01421, 148.25331) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Bowen,
                Queensland Whitsunday Australia | Herbert St. / Powell St. (-20.01208, 148.24630) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Bowen,
                Queensland Whitsunday Australia | Soldiers Rd. / Tollington Rd. / Queens Rd. (-19.99337, 148.24344) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | Skewed intersection. | |
| Bowen,
                Queensland Whitsunday Australia | Mount Nutt Rd. / Golf Links Rd. / Tracey St. / Marshall St. (-19.98023, 148.23004) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Bow Bowing,
                New South Wales Campbelltown Australia | Campbelltown Rd. / St Andrews Rd. / Bouddi St. (-34.02022, 150.83559) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Bourne,
                MA Barnstable Co. United States | US 6 / Rte. 28 (Main St.) (41.74607, -70.61805) | Rotary Existing | Unknown Unknown | 4 Approaches 0 Driveways 92.6736 | Other (At-Grade) Multilane (2 Lane, unspecified) | Functional Class: Arterial ICD estimated from Google Maps linework. | |
| Bourne,
                MA Barnstable Co. United States | US 6 (Rte 3) / Scenic Hwy (41.78067, -70.54342) | Rotary Removed | All-Way Yield Unknown | 4 Approaches 4 Driveways 26.7184 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | Rotary replaced with an interchange. ICD estimated from Google Maps linework. | 
| Bourne,
                MA Barnstable Co. United States | Otis Rotary [MacArthur Blvd. (Rte 28) / Connery Ave. / Sandwich Rd. (Rte 28A)] (41.68534, -70.59144) | Rotary Existing | All-Way Yield None | 4 Approaches 0 Driveways 249.9360 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2017 | New lane configuration/striping in 2017. ICD = 820 ft x 620 ft. 21442 | 
| Bountiful,
                UT Davis Co. United States | Main St. / 1500 South / 200 West (40.87477, -111.88570) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 27.9955 | Other (At-Grade) Single-Lane | 2008 | Construction is concrete. Functional Class: Collector ICD estimated from Google Maps linework. | 
| Bound Brook,
                NJ Somerset Co. United States | Bolmer Blvd. / E Main St. / Lincoln Blvd. (40.56146, -74.52779) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.9080 | Other (At-Grade) Single-Lane | 2005 | Year Completed estimated (2004-2006). | 
| Boulder,
                CO Boulder Co. United States | Arapahoe Ave. / 4th St. (40.01294, -105.29160) | Traffic Calming Circle Existing | One-Way/Two-Way Stop None | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane |