| 
                City, 
                State County Country  | 
            
                Intersection (Lat, Lng)  | 
            
                Type Status  | 
            Control Type / Other Control Type | Approaches / Driveways / ICD (m) | 
                Functional Class /  LaneType  | 
            Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| 
                Aachen,
                North Rhine-Westphalia Aachen Germany  | 
            
                EuropaPlatz (50.78032, 6.10801)  | 
            
                Rotary Existing  | 
            
                Other Unknown  | 
            
                4 Approaches 0 Driveways 128.3786  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            ICD estimated from Google Maps linework. | |
| 
                Folkestone,
                England Kent United Kingdom  | 
            
                A20 (Ashford Rd.) / B2064 (Chenton Approach) / M20 Ramps (51.09189, 1.13106)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 138.7733  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)  |   
            ICD estimated from Google Maps linework. | |
| 
                Folkestone,
                England Kent United Kingdom  | 
            
                A20 (Ashford Rd.) / Bargroce (51.09515, 1.10311)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 49.5048  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            ICD estimated from Google Maps linework. | |
| 
                Valkenswaard,
                North Brabant Valkenswaard Netherlands  | 
            
                Europalaan / Bakkerstraat / Wolbergstraat (51.34805, 5.46573)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 19.3950  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Valkenswaard,
                North Brabant Valkenswaard Netherlands  | 
            
                Nieuwe Waalreseweg / Kerkhofstraat (51.35292, 5.45200)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 1 Driveways 27.5977  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Valkenswaard,
                North Brabant Valkenswaard Netherlands  | 
            
                Nieuwe Waalreseweg / De Hazelaar / De Weegbree (51.36386, 5.44612)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 23.1169  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                London,
                England London United Kingdom  | 
            
                Millennium Way / John Harrison Way / Bugsby's Way / Blackwall Ln. (51.49339, 0.00978)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 60.2312  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            ICD estimated from Google Maps linework. | |
| 
                London,
                England London United Kingdom  | 
            
                A2 (Shooters Hill Rd.) / Prince Charles Rd. (51.47293, 0.00961)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 49.0993  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            ICD estimated from Google Maps linework. | |
| 
                Southend-on-Sea,
                England Essex United Kingdom  | 
            
                A13 / Southchurch Rd. / B1015 (Sutton Rd.) / Queensway (A13-A1160) Ramps (51.54042, 0.71749)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                5 Approaches 0 Driveways 50.5123  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)  |   
            ICD estimated from Google Maps linework. | |
| 
                Southend-on-Sea,
                England Essex United Kingdom  | 
            
                A1160 / Chancellor Rd. (51.53514, 0.71880)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 40.1173  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            ICD estimated from Google Maps linework. | |
| 
                Southend-on-Sea,
                England Essex United Kingdom  | 
            
                A1160 (Queensway) / A1160 (Southchurch Ave.) / Southchurch Ave. / Woodgrange Dr. (51.53506, 0.72357)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 49.0324  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            ICD estimated from Google Maps linework. | |
| 
                Southend-on-Sea,
                England Essex United Kingdom  | 
            
                A13 (London Rd.) / A13 (Queensway) / London Rd. / Princes St. (51.54058, 0.70630)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                5 Approaches 0 Driveways 49.0264  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            ICD estimated from Google Maps linework. | |
| 
                Sittingbourne,
                England Kent United Kingdom  | 
            
                A249 / M2 Ramps (51.32738, 0.65967)  | 
            
                Signalized Roundabout/Circle Existing  | 
            
                Signal Unknown  | 
            
                4 Approaches 0 Driveways 105.2283  | 
            
                Freeway Ramps (Grade-Separated) Multilane (3+ Lane)  |   
            ICD estimated from Google Maps linework. | |
| 
                Southend-on-Sea,
                England Essex United Kingdom  | 
            
                London Rd. / (parking lot) (51.54033, 0.70789)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 12.6281  | 
            
                Other (At-Grade) Single-lane w/ Traversable Central Island  |   
            ICD estimated from Google Maps linework. | |
| 
                Long Beach,
                CA Los Angeles Co. United States  | 
            
                W 4th St. / Daisy Ave. (33.77173, -118.19939)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Stop None  | 
            
                4 Approaches 0 Driveways 15.8847  | 
            
                Other (At-Grade) Single-Lane  |   
            2018 | ICD estimated from Google Maps linework. | 
| 
                Long Beach,
                CA Los Angeles Co. United States  | 
            
                W 5th St. / Daisy Ave. (33.77292, -118.19939)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Stop None  | 
            
                4 Approaches 0 Driveways 13.8990  | 
            
                Other (At-Grade) Single-Lane  |   
            2018 | ICD estimated from Google Maps linework. | 
| 
                Long Beach,
                CA Los Angeles Co. United States  | 
            
                W 8th St. / Daisy Ave. (33.77658, -118.19939)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Stop None  | 
            
                4 Approaches 0 Driveways 15.8838  | 
            
                Other (At-Grade) Single-Lane  |   
            2018 | ICD estimated from Google Maps linework. | 
| 
                Long Beach,
                CA Los Angeles Co. United States  | 
            
                W 9th St. / Daisy Ave. (33.77776, -118.19939)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Stop None  | 
            
                4 Approaches 0 Driveways 9.9273  | 
            
                Other (At-Grade) Single-Lane  |   
            2018 | ICD estimated from Google Maps linework. | 
| 
                Long Beach,
                CA Los Angeles Co. United States  | 
            
                W 10th St. / Daisy Ave. (33.77898, -118.19939)  | 
            
                Traffic Calming Circle Existing  | 
            
                All-Way Stop None  | 
            
                4 Approaches 0 Driveways 11.9125  | 
            
                Other (At-Grade) Single-Lane  |   
            2018 | ICD estimated from Google Maps linework. | 
| 
                Eersel,
                North Brabant Eersel Netherlands  | 
            
                Akkerstraat / Habraken / Molenweg (51.36444, 5.30681)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 30.5736  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Eersel,
                North Brabant Eersel Netherlands  | 
            
                Postelseweg / Duizelweg / Dalemsedijk (51.36050, 5.30414)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 23.8643  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Duizel,
                North Brabant Eersel Netherlands  | 
            
                Wolverstraat / Ganzestaartsedijk / Smitsiend (51.36532, 5.29541)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 11.1852  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Duizel,
                North Brabant Eersel Netherlands  | 
            
                Hapertseweg / De Hendrick Robinetlaan (51.36833, 5.28266)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 29.8253  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Eersel,
                North Brabant Eersel Netherlands  | 
            
                Postelseweg / Laaghuizerweg (51.35510, 5.30702)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 22.3755  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Valkenswaard,
                North Brabant Valkenswaard Netherlands  | 
            
                N69 / Dorpsstraat / Bergeijksedijk (51.30713, 5.42260)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 33.5983  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Valkenswaard,
                North Brabant Valkenswaard Netherlands  | 
            
                N69 / N396 (51.34321, 5.44899)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 29.0956  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Valkenswaard,
                North Brabant Valkenswaard Netherlands  | 
            
                N396 / Molenstraat (51.34128, 5.45305)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 30.5890  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Valkenswaard,
                North Brabant Valkenswaard Netherlands  | 
            
                N396 / Maastricherweg (51.34001, 5.45844)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 32.8281  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Valkenswaard,
                North Brabant Valkenswaard Netherlands  | 
            
                N396 / Dragonder (51.34102, 5.46347)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 29.8431  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Grays,
                England Essex United Kingdom  | 
            
                B186 / Weston Ave. / Cygnet View (51.48556, 0.27393)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 64.7039  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            ICD estimated from Google Maps linework. | |
| 
                West Thurrock,
                England Essex United Kingdom  | 
            
                B186 / Grebe Crest (51.48440, 0.27668)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 43.1370  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            ICD estimated from Google Maps linework. | |
| 
                Grays,
                England Essex United Kingdom  | 
            
                Grebe Crest / Cygnet View (51.48617, 0.27522)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 1 Driveways 32.7234  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            ICD estimated from Google Maps linework. | |
| 
                West Thurrock,
                England Essex United Kingdom  | 
            
                Weston Avenue / (parking lot) / (parking lot) (51.48531, 0.27162)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 34.9552  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            ICD estimated from Google Maps linework. | |
| 
                West Thurrock,
                England Essex United Kingdom  | 
            
                Thurrock Way / (parking lot) (51.48343, 0.27618)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 21.5690  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                West Thurrock,
                England Essex United Kingdom  | 
            
                B186 / (unknown) (51.48397, 0.27985)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 47.5999  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            ICD estimated from Google Maps linework. | |
| 
                West Thurrock,
                England Essex United Kingdom  | 
            
                Loweswater Way / (unknown) (51.48296, 0.27953)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 31.2381  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                West Thurrock,
                England Essex United Kingdom  | 
            
                Lancaster Roundabout (A126 / B186 / W Thurock Way / Heron Way / (parking lot)) (51.48335, 0.28507)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                5 Approaches 0 Driveways 76.6071  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            ICD estimated from Google Maps linework. | |
| 
                Grays,
                England Essex United Kingdom  | 
            
                B186 / A126 Ramps / (parking lots) (51.48711, 0.28679)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                5 Approaches 0 Driveways 69.9075  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)  |   
            ICD estimated from Google Maps linework. | |
| 
                Grays,
                England Essex United Kingdom  | 
            
                (unknown) / (parking lot) (51.49085, 0.28593)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 44.6182  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            ICD estimated from Google Maps linework. | |
| 
                Grays,
                England Essex United Kingdom  | 
            
                A1306 (Arterial Road West Thurrock) / Back Ln. / (unknown) (51.49172, 0.28534)  | 
            
                Signalized Roundabout/Circle Existing  | 
            
                Signal Unknown  | 
            
                4 Approaches 0 Driveways 50.5663  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            ICD estimated from Google Maps linework. | |
| 
                Grays,
                England Essex United Kingdom  | 
            
                (unknown) / (parking lot) (51.49036, 0.28088)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 16.3602  | 
            
                Other (At-Grade) Single-Lane  |   
            ICD estimated from Google Maps linework. | |
| 
                Ellicott City,
                MD Howard Co. United States  | 
            
                Rogers Ave / Old Frederick Road (39.29904, -76.81308)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 1 Driveways 26.8026  | 
            
                Other (At-Grade) Single-Lane  |   
            2004 | ICD estimated from Google Maps linework. Old Frederick Road is MD 985A but roundabout may be locally maintained and not state maintained | 
| 
                Hanover,
                MD Anne Arundel Co. United States  | 
            
                Arundel Mills Blvd. / MD 295 NB Ramps (39.15573, -76.74459)  | 
            
                Roundabout Removed  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 26.8575  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)  |   
            2002 | ICD estimated from Google Maps linework. Replaced with DDI | 
| 
                Hanover,
                MD Anne Arundel Co. United States  | 
            
                Arundel Mills Blvd. / MD 295 SB Ramps (39.15677, -76.74617)  | 
            
                Roundabout Removed  | 
            
                All-Way Yield None  | 
            
                2 Approaches 0 Driveways 66.6796  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)  |   
            2002 | ICD estimated from Google Maps linework. Replaced with DDI. | 
| 
                Greenacres,
                WA Spokane Co. United States  | 
            
                N Barker Rd. / I-90 WB Ramps / E Cataldo Ave. (47.66736, -117.15377)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 37.4904  | 
            
                Freeway Ramps (Grade-Separated) Single-Lane  |   
            2020 | ICD ranges from approx 112 to approx 123 feet. Open 8/25/2020. | 
| 
                Houston,
                TX Harris Co. United States  | 
            
                Westwood Dr. / Huge Oaks St. (29.79887, -95.49113)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 19.8120  | 
            
                Other (At-Grade) Single-Lane  |   
            1998 | Implemented as part of a larger neighborhood street reconstruction project that incorporated systematic traffic calming elements. | 
| 
                Houston,
                TX Harris Co. United States  | 
            
                Westwood Dr. / Pine Chase Dr. (29.79887, -95.48897)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 19.8120  | 
            
                Other (At-Grade) Single-Lane  |   
            1998 | Implemented as part of a larger neighborhood street reconstruction project that incorporated systematic traffic calming elements. | 
| 
                Fairbanks,
                AK Fairbanks North Star United States  | 
            
                Gaffney Rd. / Fort Wainwright Base Entrance Station (64.83323, -147.69920)  | 
            
                Other Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 38.5999  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2004 | Implemented as security measure for base entrance. Functional Class: Arterial ICD estimated from Google Maps linework. | 
| 
                Winchester,
                MA Middlesex Co. United States  | 
            
                Main St / Mt Vernon St / Church St / Park St / Laraway Rd (42.45281, -71.13716)  | 
            
                Rotary Existing  | 
            
                Uncontrolled Pedestrian Signal (red-yellow-green to drivers)  | 
            
                5 Approaches 0 Driveways 47.5856  | 
            
                Other (At-Grade) Single-Lane  |   
            Improved ped crossings (markings) approx. 2001. Ped access to train station nearby. Bike racks. on-street parking on circular roadway. ICD estimated from Google Maps linework. | |
| 
                Salem,
                NH Rockingham Co. United States  | 
            
                Via Toscana / S Village Dr. (42.77099, -71.22354)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 33.5280  | 
            
                Other (At-Grade) Single-Lane  |   
            2020 | In a mixed-use development called Tuscan Village. | 
| 
                Salem,
                NH Rockingham Co. United States  | 
            
                Tuscan Blvd. / S Village Dr. (42.76904, -71.22519)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 44.1960  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2020 | In a mixed-use development called Tuscan Village. | 
| 
                Salem,
                NH Rockingham Co. United States  | 
            
                Tuscan Blvd. / (unknown) (42.77007, -71.22693)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 44.1960  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x1 max)  |   
            2020 | In a mixed-use development called Tuscan Village. | 
| 
                Salem,
                NH Rockingham Co. United States  | 
            
                Tuscan Blvd. / Artisan Dr. (42.77110, -71.22775)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 44.1960  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2020 | In a mixed-use development called Tuscan Village. | 
| 
                Redding,
                CA Shasta Co. United States  | 
            
                Shasta View Dr. / Inspiration Pl. (40.59578, -122.32500)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 39.9026  | 
            
                Other (At-Grade) Single-Lane  |   
            2009 | In a new school zone Functional Class: Arterial ICD estimated from Google Maps linework. | 
| 
                Zionsville,
                IN Boone Co. United States  | 
            
                Talbott Dr. / Bennett Pkwy. (39.94738, -86.24236)  | 
            
                Other Existing  | 
            
                Uncontrolled None  | 
            
                3 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            In an apartment complex with parking along circulatory roadway. | |
| 
                Salt Lake City,
                UT Salt Lake Co. United States  | 
            
                E 300 N / N State St. (40.77595, -111.88821)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                3 Approaches 0 Driveways 0.0000  | 
            
                Unknown Single-Lane  |   
            2025 | In front of Utah State Capitol. https://www.newsbreak.com/fox-13-news-563658/3747729482904-new-capitol-hill-roundabout-gets-thumbs-up-from-neighborhood-residents | 
| 
                Cedar Falls,
                IA Black Hawk Co. United States  | 
            
                Brandilynn Blvd. / Prairie Pkwy. (42.48552, -92.43468)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 42.2763  | 
            
                Other (At-Grade) Single-Lane  |   
            2009 | In new commercial development. Functional Class: Local ICD estimated from Google Maps linework. | 
| 
                Iowa City,
                IA Johnson Co. United States  | 
            
                Kennedy Pkwy. / Meadowlark Dr. (41.66899, -91.59541)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 28.5492  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | In new residential development. Functional Class: Local ICD estimated from Google Maps linework. | 
| 
                Ankeny,
                IA Polk Co. United States  | 
            
                SW Snyder Blvd. / Springfield Dr. (41.69610, -93.60439)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 25.8618  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | In new residential development. Functional Class: Local ICD estimated from Google Maps linework. | 
| 
                Ankeny,
                IA Polk Co. United States  | 
            
                NW 13th St. / Boulder Dr. (41.74220, -93.64587)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 25.8432  | 
            
                Other (At-Grade) Single-Lane  |   
            2005 | In new residential development. Functional Class: Local ICD estimated from Google Maps linework. | 
| 
                Ankeny,
                IA Polk Co. United States  | 
            
                SW White Birch Dr. / Braeburn St. (41.70018, -93.62535)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 55.2872  | 
            
                Other (At-Grade) Single-Lane  |   
            2005 | In new residential development. Functional Class: Local ICD estimated from Google Maps linework. | 
| 
                Ankeny,
                IA Polk Co. United States  | 
            
                NW 5th St. / Abbie Dr. (41.73569, -93.66248)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 24.0634  | 
            
                Other (At-Grade) Single-Lane  |   
            2008 | In new residential development. Functional Class: Local ICD estimated from Google Maps linework. | 
| 
                West Des Moines,
                IA Dallas Co. United States  | 
            
                W. Wells Fargo Trl. / Wells Fargo Terr. (41.55986, -93.80373)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 25.0228  | 
            
                Other (At-Grade) Single-Lane  |   
            2005 | In new Wells Fargo commercial development. ICD estimated from Google Maps linework. | 
| 
                West Des Moines,
                IA Dallas Co. United States  | 
            
                W. Wells Fargo Trl. / E. Wells Fargo Terr. (41.55994, -93.80212)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 26.8101  | 
            
                Other (At-Grade) Single-Lane  |   
            2005 | In new Wells Fargo commercial development. ICD estimated from Google Maps linework. | 
| 
                West Des Moines,
                IA Dallas Co. United States  | 
            
                West Access / W. Wells Fargo Trl. (41.55749, -93.80611)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 28.5986  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | In new Wells Fargo commercial development. ICD estimated from Google Maps linework. | 
| 
                Lehi,
                UT Utah Co. United States  | 
            
                N 900 W / W Grasslands Dr. (40.38620, -111.82260)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 31.8400  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2004 | In parking lot for big box retail shopping center. ICD estimated from Google Maps linework. | 
| 
                (unincorporated),
                VA Powhatan Co. United States  | 
            
                Old Buckingham Rd. / General Scott Blvd. / (parking lot) (37.53775, -77.91700)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 30.4800  | 
            
                Other (At-Grade) Single-Lane  |   
            2005 | In Powhatan Courthouse area opposite a subdivision. | 
| 
                West Boldon,
                England South Tyneside United Kingdom  | 
            
                Testos Roundabout [A19 / A184 (Newcastle Rd.)] (54.94179, -1.47398)  | 
            
                Signalized Roundabout/Circle Existing  | 
            
                Signal None  | 
            
                4 Approaches 0 Driveways  | 
            
                Other (At-Grade) Multilane (3+ Lane)  |   
            In process of being replaced with interchange. | |
| 
                Charlotte,
                NC Mecklenburg Co. United States  | 
            
                Galleria Blvd. / Galleria Village Dr. (35.13888, -80.73592)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 32.2302  | 
            
                Other (At-Grade) Single-Lane  |   
            2004 | In shopping center. ICD estimated from Google Maps linework. | 
| 
                Santa Barbara,
                CA Santa Barbara Co. United States  | 
            
                Alameda Padre Serra / Montecito St. / Salinas St. / Sycamore Canyon Rd. (34.42903, -119.67720)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                5 Approaches 1 Driveways 23.6427  | 
            
                Other (At-Grade) Single-Lane  |   
            1992 | Includes driveway into roundabout serving one home. ICD estimated from Google Maps linework. | 
| 
                Fishers,
                IN Hamilton Co. United States  | 
            
                E 126th St. / Parkside Dr. (39.97151, -86.00031)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 36.6116  | 
            
                Unknown Multilane (2 Lane, unspecified)  |   
            2019 | Includes newly constructed roadway to the south, so 4 approaches is correct. ICD estimated from Google Maps linework. | 
| 
                Ferndale,
                WA Whatcom Co. United States  | 
            
                Slater Rd. / I-5 NB Ramps (48.81737, -122.54604)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 27.5247  | 
            
                Freeway Ramps (Grade-Separated) Single-lane w/ Traversable Central Island  |   
            2014 | Includes yield-controlled right-turn bypass lanes. Open November 2014. ICD estimated from Google Maps linework. | 
| 
                Concord,
                MA Middlesex Co. United States  | 
            
                Rte 2 (Union Tpke-Concord Tpke) / Rte 2A / Barretts Mill Rd. / Commonwealth Ave. (42.46728, -71.39721)  | 
            
                Rotary Existing  | 
            
                All-Way Yield None  | 
            
                5 Approaches 0 Driveways 100.4354  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            Infamous Concord rotary. ICD estimated from Google Maps linework. | |
| 
                Murfreesboro,
                TN Rutherford Co. United States  | 
            
                Puckett Creek Crossing / Contessa Dr. / Centurion Way (35.86476, -86.47428)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 48.7680  | 
            
                Other (At-Grade) Single-Lane  |   
            2021 | Initial circular intersection constructed 2008. Raised splitter islands added 2020-2021. | 
| 
                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 | 
| 
                Slidell,
                LA St. Tammany Par. United States  | 
            
                Town Center Pkwy. / Levis Ln. (30.26543, -89.76313)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 47.4507  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2013 | Initial construction completed 2011-2013; third leg added 2015-2016. ICD estimated from Google Maps linework. 21442 | 
| 
                Knightdale,
                NC Wake Co. United States  | 
            
                Carolinian Ave. / Knightdale Station Run (35.79907, -78.46866)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 33.9041  | 
            
                Other (At-Grade) Single-Lane  |   
            2017 | Initial construction completed 2014-2015. Year Completed estimated (2017-2018) with addition of splitter islands and marked crosswalks. ICD estimated from Google Maps linework. | 
| 
                Longmont,
                CO Boulder Co. United States  | 
            
                Sundance Dr. / Twilight Dr. (40.19529, -105.06175)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 30.4800  | 
            
                Other (At-Grade) Single-Lane  |   
            2016 | Initial construction without splitter islands 1999-2002. Splitter islands added 2016-2017. | 
| 
                Ceres,
                CA Stanislaus Co. United States  | 
            
                Helen Perry Rd. / Eastgate Blvd. (37.60202, -120.92512)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 27.4320  | 
            
                Other (At-Grade) Single-Lane  |   
            2005 | Initial construction without splitter islands around 2005. Converted into roundabout with splitter islands 2006-2009. | 
| 
                Oxford,
                MS Lafayette Co. United States  | 
            
                Sisk Ave. / Persimmon Ln. (34.37239, -89.48771)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 57.9120  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2014 | Initially built as traffic circle. Modified from circle to roundabout 2016-2019. Left lane trapped as left-turn-only lane but marked as through lane. | 
| 
                Provo,
                UT Utah Co. United States  | 
            
                Veterans Pkwy. / Edgewood Dr. (Shops at Riverwoods) (40.29899, -111.65785)  | 
            
                Other Removed  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 32.0040  | 
            
                Other (At-Grade) Single-Lane  |   
            2010 | Initially constructed 1999. Converted 2010-2011 into pedestrian use only as part of outdoor mall. | 
| 
                Phoenix,
                AZ Maricopa Co. United States  | 
            
                Happy Valley Rd. / I-17 NB Ramps (33.71291, -112.11477)  | 
            
                Roundabout Removed  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 64.0077  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)  |   
            2020 | Initially constructed 2002, revised 2005. Removed in 2020, replaced with diverging diamond interchange: https://www.youtube.com/watch?v=Xgcxmf9UYWw. https://azdot.gov/adot-blog/requiem-roundabouts-least-ones-happy-valley-road 21442 | 
| 
                Phoenix,
                AZ Maricopa Co. United States  | 
            
                Happy Valley Rd. / I-17 SB Ramps (33.71292, -112.12019)  | 
            
                Roundabout Removed  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 62.4840  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)  |   
            2020 | Initially constructed 2002, revised 2005. Removed in 2020, replaced with diverging diamond interchange: https://www.youtube.com/watch?v=Xgcxmf9UYWw. https://azdot.gov/adot-blog/requiem-roundabouts-least-ones-happy-valley-road 21442 | 
| 
                (unincorporated),
                TX Hays Co. United States  | 
            
                Ledge Stone Dr. / Rocky Ridge Trl. (30.20694, -97.97889)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 38.1000  | 
            
                Other (At-Grade) Single-Lane  |   
            2007 | Initially constructed 2006-2008 with southeast and northeast legs. Northwest leg added 2013-2014. Southwest leg added 2020-2021. | 
| 
                Stockbridge,
                GA Henry Co. United States  | 
            
                GA 138 / Moseley Dr. (33.56930, -84.16559)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 1 Driveways 30.4800  | 
            
                Other (At-Grade) Single-Lane  |   
            2016 | Initially constructed as a mini-roundabout in 2016; upgraded to a full roundabout in 2022. https://mhfnews.org/2022/06/16/gdot-crews-to-enlarge-moseley-drive-roundabout/ | 
| 
                Kissimmee,
                FL Osceola Co. United States  | 
            
                Lakeview Dr. / Beaumont Ave. / (parking lot) (28.28792, -81.40892)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 24.3840  | 
            
                Other (At-Grade) Single-lane w/ Traversable Central Island  |   
            2011 | Initially constructed with three legs (northeast, southwest, southeast). Northeast leg added 2016. | 
| 
                Jackson,
                GA Butts Co. United States  | 
            
                GA 36 / Keys Ferry Rd. / Barnetts Bridge Rd. (33.38354, -83.90334)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            2022 | Initially installed in 2017 as a modular, rapid-install roundabout (ICD = 70 ft). Converted to single-lane roundabout with raised central island in 2022. https://www.jacksonprogress-argus.com/news/roundabout-replacement-at-hwy-36-and-barnetts-bridge-road-in-butts-county-begins-jan-31/article_58c8363c-806c-11ec-be5a-efce5e2209d4.html | 
| 
                Ferndale,
                WA Whatcom Co. United States  | 
            
                Slater Rd. / I-5 SB Ramps (48.81713, -122.54999)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                3 Approaches 0 Driveways 38.1000  | 
            
                Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max)  |   
            2014 | Initially installed in November 2014 as a single-lane with a traversable central island. Includes a yield-controlled right-turn bypass lane. Modified in 2024-2025 to 2x1 with yield-controlled right-turn-only lane on north and west legs. | 
| 
                Conroe,
                TX Montgomery Co. United States  | 
            
                Grand Central Pkwy. / City Central Ave. (30.26572, -95.46091)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 65.5320  | 
            
                Other (At-Grade) Multilane (2 Lane, 2x2 max)  |   
            2020 | Initially opened with west, east, and north legs in 2020. South leg added 2024-2025. | 
| 
                Gig Harbor,
                WA Pierce Co. United States  | 
            
                Borgen Blvd. / 51st (47.35959, -122.60640)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Active Pedestrian Warning (flashing yellow)  | 
            
                4 Approaches 0 Driveways 35.5974  | 
            
                Other (At-Grade) Single-Lane  |   
            2002 | In-pavement flashers in use on all crosswalks. Striped-out apron for future conversion to multilane. Opened September 2002. Functional Class: Arterial ICD estimated from Google Maps linework. | 
| 
                Federal Way,
                WA King Co. United States  | 
            
                12th Ave. SW / 12th Pl. SW / SW 340th St. (47.29677, -122.35142)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 18.6299  | 
            
                Other (At-Grade) Single-Lane  |   
            2013 | Inscribed diameter of 76 feet, landscaped central island, yield control on all approaches. No curbing for channelizing the approaches, paint only. Opened November 2013. ICD estimated from Google Maps linework. | 
| 
                Rocklin,
                CA Placer Co. United States  | 
            
                Crossings Dr. / Bass Pro Dr. (38.80077, -121.20376)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 44.1960  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2014 | Inside a mall parking area. Year Completed estimated (2013-2014). Partial concentric striped circulatory roadway. | 
| 
                Sacramento,
                CA Sacramento Co. United States  | 
            
                Promenade Cir. / (unknown) (38.63732, -121.49950)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 34.5175  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | Inside commercial/office park. ICD estimated from Google Maps linework. | 
| 
                Northwest Warren,
                MI Macomb Co. United States  | 
            
                William Durant Blvd. / Charles Chayne Rd. (42.50727, -83.04056)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 62.4840  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2003 | Inside General Motors plant. | 
| 
                Northwest Warren,
                MI Macomb Co. United States  | 
            
                Edward Cole Blvd. / Louis Chevrolet Rd. (42.51705, -83.03027)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 62.4840  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2004 | Inside General Motors plant. Year Completed estimated (2003-2005). | 
| 
                San Diego,
                CA San Diego Co. United States  | 
            
                Surface Navy Blvd. / S 32nd St. (32.68369, -117.12563)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield Other  | 
            
                3 Approaches 0 Driveways 45.7200  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2010 | Inside Naval Base San Diego. Entrance station on north leg. Year Completed estimated (2009-2010). | 
| 
                Charlotte,
                NC Mecklenburg Co. United States  | 
            
                Piedmont Row Dr. / Bullfinch Rd. (35.15216, -80.83980)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 39.0606  | 
            
                Other (At-Grade) Single-Lane  |   
            2006 | Inside private development. ICD estimated from Google Maps linework. | 
| 
                Palm Coast,
                FL Flagler Co. United States  | 
            
                (shopping center entrance) / (shopping center road) (29.47666, -81.21430)  | 
            
                Roundabout Existing  | 
            
                All-Way Yield None  | 
            
                4 Approaches 0 Driveways 54.0660  | 
            
                Other (At-Grade) Multilane (2 Lane, unspecified)  |   
            2008 | Inside shopping center. ICD estimated from Google Maps linework. | 
| 
                Davidsonville,
                MD Prince George's Co. United States  | 
            
                Town Center Blvd. / Emerald Way (38.94399, -76.73410)  | 
            
                Other Existing  | 
            
                Uncontrolled Unknown  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            Inside shopping center. No splitter islands on east and west legs. | |
| 
                Glenarden,
                MD Prince George's Co. United States  | 
            
                Campus Way N / McHugh Dr. (38.92127, -76.84944)  | 
            
                Other Existing  | 
            
                All-Way Yield Unknown  | 
            
                4 Approaches 0 Driveways 0.0000  | 
            
                Other (At-Grade) Single-Lane  |   
            Inside shopping center. No splitter islands on northwest and southeast legs. |