| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Brandon,
                MB Westman Region Canada | 34th St. / Richmond Ave. (49.82758, -99.98465) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.6702 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Wilsonville,
                OR Clackamas Co. United States | SW Barber St. / Costa Cir. / 110th Ave. (45.30843, -122.79090) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.1580 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Phoenix,
                AZ Maricopa Co. United States | W Riverwood Blvd. / Windrow Blvd. (33.41749, -112.26690) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 23.9252 | Other (At-Grade) Single-Lane | 2002 | ICD estimated from Google Maps linework. | 
| Phoenix,
                AZ Maricopa Co. United States | Devonna Ln. / Watkins St. / 84th Dr. / Hammond Ln. (33.42601, -112.24090) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 23.9228 | Other (At-Grade) Single-Lane | 1999 | ICD estimated from Google Maps linework. | 
| Wickenburg,
                AZ Maricopa Co. United States | US 93 / US 60 (33.97094, -112.72790) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 50.5146 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Consecutive double lefts with three-lane circulatory section. ICD estimated from Google Maps linework. | 
| Wickenburg,
                AZ Maricopa Co. United States | US 93 / Tegner St. (33.98513, -112.73940) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 45.5546 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | ICD estimated from Google Maps linework. | 
| Maryville,
                IA Fayette Co. United States | IA 3 / IA 187 (42.68763, -91.64565) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.5057 | Other (At-Grade) Single-Lane | 2009 | Rural ICD estimated from Google Maps linework. | 
| Altoona,
                IA Polk Co. United States | Bass Pro Dr. / Prairie Fire Blvd. (41.65177, -93.51022) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.8352 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Part of Bass Pro Shops commercial shopping center. ICD estimated from Google Maps linework. | 
| Ankeny,
                IA Polk Co. United States | SW Goodwin St. / Springfield Dr. (41.69388, -93.61487) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 24.9709 | Other (At-Grade) Single-Lane | 2004 | One of three in a new residential development. Functional Class: Local ICD estimated from Google Maps linework. | 
| Ankeny,
                IA Polk Co. United States | SW Somersby Blvd. / Springfield Dr. (41.69387, -93.61252) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways 24.0790 | Other (At-Grade) Single-Lane | 2004 | One of three in a new residential development. Functional Class: Local ICD estimated from Google Maps linework. | 
| Ankeny,
                IA Polk Co. United States | SW Somersby Blvd. / 46th St. (41.69155, -93.61253) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 24.0799 | Other (At-Grade) Single-Lane | 2004 | One of three in a 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. | 
| 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. | 
| Fort Dodge,
                IA Webster Co. United States | 10th Ave. N. / N. 32nd St. (42.51522, -94.14932) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 37.8545 | Other (At-Grade) Single-Lane | 2009 | Replaced two T intersections. ICD estimated from Google Maps linework. | 
| Iowa City,
                IA Johnson Co. United States | Grand Ave. / S. Grand Ave. (41.65855, -91.54559) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 23.2000 | Other (At-Grade) Single-Lane | 2007 | On University of Iowa school campus. 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. | 
| Waverly,
                IA Bremer Co. United States | 1st Ave. NW / 8th St. NW (42.72669, -92.48061) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.2167 | Other (At-Grade) Single-Lane | 2005 | Replaced "T" intersection at entry to Wartburg College school campus. 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. | 
| West Des Moines,
                IA Dallas Co. United States | Village View Dr. / Prairie View Dr. (Blue Stem Circle) (41.56376, -93.78467) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 45.5745 | Other (At-Grade) Single-Lane | 2007 | New residential/commercial development on former Ponderosa Golf Course. ICD estimated from Google Maps linework. | 
| West Des Moines,
                IA Dallas Co. United States | S. Crescent Way / Stagecoach Dr. (41.56252, -93.78701) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.9581 | Other (At-Grade) Single-Lane | 2007 | Intersection of two private residential streets on former Ponderosa Golf Course. ICD estimated from Google Maps linework. | 
| West Des Moines,
                IA Dallas Co. United States | S. Crescent Way / S. Ridgefield Way / Fairway Dr. (41.56541, -93.78633) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 33.9566 | Other (At-Grade) Single-Lane | 2007 | Intersection of two private residential streets on former Ponderosa Golf Course. ICD estimated from Google Maps linework. | 
| Richfield,
                MN Hennepin Co. United States | 66th St. / Richfield Pkwy. (17th Ave.) (44.88351, -93.25011) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.6192 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | Completed August 2007. First roundabout in Richfield. Double left turn for southbound left turn. Serves Target shopping center. ICD estimated from Google Maps linework. | 
| Rice Lake,
                WI Barron Co. United States | CTH O (18 1 / 2 Ave.) / 19th St. (45.47333, -91.76556) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 29.3129 | Other (At-Grade) Single-Lane | 2005 | Opened October 25, 2005. ICD estimated from Google Maps linework. | 
| Rice Lake,
                WI Barron Co. United States | CTH O (18 1 / 2 Ave.) / US 53 NB Ramps (45.47319, -91.75753) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 33.5006 | Freeway Ramps (Grade-Separated) Single-Lane | 2006 | Opened June 1, 2006 ICD estimated from Google Maps linework. | 
| Rice Lake,
                WI Barron Co. United States | CTH O (18 1 / 2 Ave.) / US 53 SB Ramps (45.47325, -91.76021) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 33.5005 | Freeway Ramps (Grade-Separated) Single-Lane | 2006 | Opened June 1, 2006 ICD estimated from Google Maps linework. | 
| Richfield,
                WI Washington Co. United States | STH 145 / US 41 SB Ramps (43.28170, -88.19557) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 37.3868 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2009 | Series of 5 roundabouts. Corridor serves two interchanges and Cabelas commercial development. ICD estimated from Google Maps linework. | 
| Richfield,
                WI Washington Co. United States | STH 145 / US 41 NB Ramps (43.28247, -88.19345) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 34.7780 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2009 | Series of 5 roundabouts. Corridor serves two interchanges and Cabelas commercial development. ICD estimated from Google Maps linework. | 
| Richfield,
                WI Washington Co. United States | STH 145 / Cabela Way (43.28377, -88.18944) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.9939 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Series of 5 roundabouts. Corridor serves two interchanges and Cabelas commercial development. Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Richfield,
                WI Washington Co. United States | STH 145 / US 45 SB Ramps (43.28387, -88.18716) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 29.5606 | Freeway Ramps (Grade-Separated) Single-Lane | 2009 | Series of 5 roundabouts. Corridor serves two interchanges and Cabelas commercial development. ICD estimated from Google Maps linework. | 
| Richfield,
                WI Washington Co. United States | STH 145 / US 45 NB Ramps (43.28380, -88.18485) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 30.4301 | Freeway Ramps (Grade-Separated) Single-Lane | 2009 | Series of 5 roundabouts. Corridor serves two interchanges and Cabelas commercial development. ICD estimated from Google Maps linework. | 
| Greenleaf,
                WI Brown Co. United States | STH 32-STH 57 (Greenleaf Rd.) / STH 96 (Day St.) (44.31343, -88.09599) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.3285 | Other (At-Grade) Single-Lane | 2007 | Opened August 31, 2007. ICD estimated from Google Maps linework. | 
| Bellevue,
                WI Brown Co. United States | Eaton Rd. (CTH JJ) / Ontario Rd. (44.46616, -87.92782) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.6846 | Other (At-Grade) Single-Lane | 2008 | Opened November 2008. ICD estimated from Google Maps linework. | 
| Bellevue,
                WI Brown Co. United States | Eaton Rd. (CTH JJ) / Cottage Rd. / Huron Rd. (44.46617, -87.91737) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 28.1275 | Other (At-Grade) Single-Lane | 2005 | Completed summer 2005. Right-turn bypass lane on NW quadrant. ICD estimated from Google Maps linework. | 
| Allouez,
                WI Brown Co. United States | Allouez Ave. (CTH O) / Libal St. (44.47738, -88.01638) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 23.8612 | Other (At-Grade) Single-Lane | 2006 | Opened July 1, 2006. ICD estimated from Google Maps linework. | 
| Howard,
                WI Brown Co. United States | Glendale Ave. / Pinecrest Rd. (44.56910, -88.11016) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 28.0779 | Other (At-Grade) Single-Lane | 2005 | Completed summer 2005. Skewed intersection. ICD estimated from Google Maps linework. | 
| De Pere,
                WI Brown Co. United States | Scheuring Rd. (CTH F) / PDQ Dr. / Mid Valley Dr. (44.43032, -88.11939) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.9379 | Other (At-Grade) Single-Lane | 2010 | Series of 6 roundabouts. Opened November 22, 2010. ICD estimated from Google Maps linework. | 
| De Pere,
                WI Brown Co. United States | Scheuring Rd. (CTH F) / Lawrence Dr. (44.43083, -88.10675) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 47.7605 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2010 | Series of 6 roundabouts. Opened November 2, 2010. ICD estimated from Google Maps linework. | 
| Casnovia,
                MI Muskegon Co. United States | M-37 / M-46 / Newaygo Rd. (43.23445, -85.81060) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.1950 | Other (At-Grade) Single-Lane | 2009 | ICD estimated from Google Maps linework. | 
| Grand Junction,
                CO Mesa Co. United States | 24 Rd. / I-70 WB Ramps (39.11454, -108.60820) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.7732 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2006 | ICD estimated from Google Maps linework. | 
| Grand Junction,
                CO Mesa Co. United States | 24 Rd. / I-70 EB Ramps (39.11333, -108.60820) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 37.0672 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2006 | ICD estimated from Google Maps linework. | 
| Longmont,
                CO Boulder Co. United States | Deerwood Dr. / Bluefield Ave. (40.17346, -105.06460) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 26.4648 | Other (At-Grade) Single-Lane | 2002 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Longmont,
                CO Boulder Co. United States | Deerwood Dr. / Windflower Dr. (40.17093, -105.06300) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 25.5532 | Other (At-Grade) Single-Lane | 2003 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Longmont,
                CO Boulder Co. United States | Deerwood Dr. / Stardance Cir. (40.16962, -105.06120) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 22.8158 | Other (At-Grade) Single-Lane | 2003 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Longmont,
                CO Boulder Co. United States | Deerwood Dr. / Summer Hawk Dr. (40.17087, -105.05720) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 25.5532 | Other (At-Grade) Single-Lane | 2003 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Golden,
                CO Jefferson Co. United States | S. Golden Rd. / Ford St. / Jackson St. (39.74612, -105.20940) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways 52.3432 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Sheridan,
                CO Arapahoe Co. United States | River Point Pkwy. / S Platte River Dr. (39.65176, -105.01060) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 46.8975 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Sheridan,
                CO Arapahoe Co. United States | River Point Pkwy. / S River Point Dr. (39.64776, -105.00790) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 49.6590 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Clackamas,
                OR Clackamas Co. United States | SE 157th Ave. / SE 162nd Ave. (45.42429, -122.49770) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.8826 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Williamsport,
                PA Lycoming Co. United States | Via Bella St. / Mulberry St. (41.24000, -76.99792) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 32.3309 | Other (At-Grade) Single-Lane | 2009 | ICD estimated from Google Maps linework. | 
| Williamsport,
                PA Lycoming Co. United States | Via Bella St. / William St. (41.23740, -77.00319) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 43.1096 | Other (At-Grade) Single-Lane | 2009 | ICD estimated from Google Maps linework. | 
| Williamsport,
                PA Lycoming Co. United States | Via Bella St. / Court St. (41.23876, -77.00027) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 58.3764 | Other (At-Grade) Single-Lane | 2009 | ICD estimated from Google Maps linework. | 
| Muncy,
                PA Lycoming Co. United States | Lycoming Mall Circle (41.24320, -76.82846) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 28.7372 | Other (At-Grade) Single-Lane | 2009 | ICD estimated from Google Maps linework. | 
| Newtown,
                PA Delaware Co. United States | Saint David's Rd. / N. Newtown St. (40.00844, -75.41823) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 34.7622 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Peach Bottom,
                PA York Co. United States | SR 851 / SR 74 (39.74695, -76.33116) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.7316 | Other (At-Grade) Single-Lane | 2008 | Skewed intersection. ICD estimated from Google Maps linework. | 
| Appleton,
                WI Outagamie Co. United States | Evergreen Dr. / Gateway Dr. (44.30178, -88.37136) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.4804 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Appleton,
                WI Outagamie Co. United States | Evergreen Dr. / Lightning Dr. (44.30166, -88.36722) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.4804 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Appleton,
                WI Outagamie Co. United States | Evergreen Dr. / Providence Ln. (44.30159, -88.36140) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.6257 | Other (At-Grade) Single-Lane | 2010 | ICD estimated from Google Maps linework. | 
| Appleton,
                WI Outagamie Co. United States | Evergreen Dr. / French Rd. (44.30169, -88.35349) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.0447 | Other (At-Grade) Single-Lane | 2011 | ICD estimated from Google Maps linework. | 
| Benton Harbor,
                MI Berrien Co. United States | Main St. (I-94 Business) / 5th St. (42.11655, -86.45281) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.4639 | Other (At-Grade) Single-Lane | 2010 | Completed November 2010. Part of downtown streetscape project. ICD estimated from Google Maps linework. | 
| Benton Harbor,
                MI Berrien Co. United States | Main St. (I-94 Business) / Riverview Dr. (42.11343, -86.46642) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.0091 | Other (At-Grade) Single-Lane | 2010 | Completed November 2010. Part of downtown streetscape project. ICD estimated from Google Maps linework. | 
| Ottawa,
                ON City of Ottawa Canada | Brian Coburn Blvd. / Trim Rd. (45.45820, -75.44730) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 74.5586 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2012 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Lansing Township,
                MI Ingham Co. United States | Lake Lansing Rd. / Chamberlain Dr. (42.76086, -84.52982) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 56.9966 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | ICD estimated from Google Maps linework. | 
| Lansing Township,
                MI Ingham Co. United States | Wood St. / Sams Way (42.76276, -84.52303) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 38.5810 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Lansing,
                MI Ingham Co. United States | Michigan Ave. / Washington Square (42.73360, -84.55225) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 26.3176 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Lansing,
                MI Ingham Co. United States | Barnes Ave. / Beal Ave. (42.71491, -84.56174) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 15.7953 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Lansing,
                MI Ingham Co. United States | Barnes Ave. / Davis Ave. (42.71489, -84.55698) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 18.4279 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Lansing,
                MI Ingham Co. United States | Barnes Ave. / Coleman Ave. (42.71488, -84.55390) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 20.1829 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Lansing,
                MI Ingham Co. United States | Beal Ave. / Sparrow Ave. (42.71602, -84.56174) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 8.7750 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Lansing,
                MI Ingham Co. United States | Harding Ave. / Pershing Ave. (42.71364, -84.53384) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.1015 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Holt,
                MI Ingham Co. United States | Cedar St. / Holbrook Rd. (42.63206, -84.50667) | Roundabout Existing | All-Way Yield None | 3 Approaches 1 Driveways 50.9640 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | ICD estimated from Google Maps linework. | 
| Alpha,
                MI Iron Co. United States | Main St. / 4th St. / Center St. / 8th Ave. (46.04575, -88.37727) | Other Existing | All-Way Yield None | 4 Approaches 0 Driveways 68.8040 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Mount Pleasant,
                MI Isabella Co. United States | Mosher St. / Main St. (43.60531, -84.77661) | Traffic Calming Circle Existing | All-Way Yield None | 4 Approaches 0 Driveways 21.6206 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Clare,
                MI Isabella Co. United States | US 127 Business / Mission Rd. (43.80889, -84.76766) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 41.3709 | Other (At-Grade) Single-Lane | 2009 | ICD estimated from Google Maps linework. | 
| Perryolpolis,
                PA Fayette Co. United States | Independence St. / Liberty St. (40.08707, -79.75069) | Other Existing | Unknown Unknown | 0 Approaches 0 Driveways 27.4122 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Petaluma,
                CA Sonoma Co. United States | McDowell Blvd. / Baywood Dr. (38.24036, -122.61010) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 23.4513 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Irvine,
                CA Orange Co. United States | Sand Canyon Ave. / Shady Canyon Dr. (33.65462, -117.78100) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 104.3859 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2001 | ICD estimated from Google Maps linework. | 
| Irvine,
                CA Orange Co. United States | Laguna Canyon Rd. / Quail Hill (33.64756, -117.76640) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 57.6655 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2003 | One approach leads to an unfinished road ICD estimated from Google Maps linework. | 
| Castaic,
                CA Los Angeles Co. United States | Hasley Canyon Rd. / The Old Road (34.45592, -118.61730) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 52.1943 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | ICD estimated from Google Maps linework. | 
| Yuba City,
                CA Sutter Co. United States | Stabler Ln. / Butte Vista Ln. (39.16747, -121.64400) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 46.2983 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Ottawa,
                ON City of Ottawa Canada | Bridgestone Dr. / Steeple Chase Dr. / Stonehaven Dr. (45.29100, -75.85860) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 28.5674 | Other (At-Grade) Single-Lane | 2012 | Functional Class: Major Collector ICD estimated from Google Maps linework. | 
| Albany,
                NY Albany Co. United States | Washington Ave. / CR 156 (Fuller Rd.) (42.69307, -73.83071) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 53.5475 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2012 | New roundabout will be just north of existing intersection. A flyover will carry through traffic on Washington Ave Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Ottawa,
                ON City of Ottawa Canada | Brookfield Rd. / Flannery Dr. (45.37364, -75.68420) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.7886 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Functional Class: Major Collector ICD estimated from Google Maps linework. | 
| Petaluma,
                CA Sonoma Co. United States | Magnolia Ave. / Elm Dr. (38.24586, -122.65600) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 20.6356 | Other (At-Grade) Single-Lane | 2006 | Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Petaluma,
                CA Sonoma Co. United States | Windsor Dr. / West Haven Way (38.22460, -122.66430) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 30.0241 | Other (At-Grade) Single-Lane | 2005 | Functional Class: Collector ICD estimated from Google Maps linework. | 
| Petaluma,
                CA Sonoma Co. United States | Petaluma Blvd. S / Caulfield Ln. (38.22730, -122.61820) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 40.3434 | Other (At-Grade) Single-Lane | 2011 | Construction began spring 2011. Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Castaic,
                CA Los Angeles Co. United States | Hasley Canyon Rd. / I-5 NB Ramps (34.45605, -118.61520) | Roundabout Existing | All-Way Yield None | 2 Approaches 0 Driveways 41.3614 | Other (At-Grade) Single-Lane | 2009 | ICD estimated from Google Maps linework. | 
| Yuba City,
                CA Sutter Co. United States | Butte Vista Ln. / Tres Picos Ln. (39.16908, -121.64820) | Traffic Calming Circle Existing | All-Way Yield None | 4 Approaches 0 Driveways 26.8524 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Viera,
                FL Brevard Co. United States | Wickham Rd. / Lake Andrews Dr. (28.22975, -80.72577) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 50.5091 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2002 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Wilmington,
                DE New Castle Co. United States | W Park Dr. / E Park Dr. (39.77437, -75.54610) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 33.9632 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Clermont,
                OH Clermont Co. United States | Ferguson Dr. / (West Unknown) (39.09338, -84.28562) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 62.1051 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Newberg,
                OR Yamhill Co. United States | Brutscher St. / Hayes St. (45.30378, -122.94090) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.9211 | Other (At-Grade) Single-Lane | 2002 | ICD estimated from Google Maps linework. | 
| Newberg,
                OR Yamhill Co. United States | Providence Dr. / Hayes St. / Wenn Blvd. (45.30378, -122.93650) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 26.0409 | Other (At-Grade) Single-Lane | 2008 | Year Completed estimated (2006-2010). ICD estimated from Google Maps linework. | 
| Wilsonville,
                OR Clackamas Co. United States | SW Boeckman Rd. / Tooze Rd. (45.31616, -122.78790) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 40.3126 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Gorham,
                ME Cumberland Co. United States | Rte. 112 / Rte. 114 (43.65213, -70.42751) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 45.7999 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | ICD estimated from Google Maps linework. | 
| Gorham,
                ME Cumberland Co. United States | Rte. 112 / Rte. 4 (43.66904, -70.45676) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 32.8284 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. |