| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Hagerstown,
                MD Washington Co. United States | E. Magnolia Ave. / E. Irvin Ave. (39.65722, -77.69958) | Other Existing | All-Way Stop None | 0 Approaches 0 Driveways 27.5846 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Lawrence,
                KS Douglas Co. United States | W. Harvard Rd. / S. Moundridge Dr. (38.96770, -95.30438) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 13.0003 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| (unincorporated),
                MA Barnstable Co. United States | Rte 6A / Rte 28 (gateway to Cape Cod) (41.74313, -70.58651) | Rotary Existing | All-Way Yield None | 0 Approaches 0 Driveways 118.8720 | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Boston,
                MA Suffolk Co. United States | VFW Pkwy. / North Shore Rd. (Butler Circle) (42.41228, -70.99350) | Rotary Existing | Unknown Unknown | 0 Approaches 0 Driveways 84.6514 | Other (At-Grade) Multilane (2 Lane, unspecified) | Functional Class: Arterial ICD estimated from Google Maps linework. | |
| Boston,
                MA Suffolk Co. United States | Broadway / Main (42.40244, -71.06048) | Rotary Existing | Unknown Unknown | 0 Approaches 0 Driveways 123.4694 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Gaithersburg,
                MD Montgomery Co. United States | Kentlands Blvd. / Main St. (39.12333, -77.23855) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.6720 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 1994 | Year Completed estimated (1993-2002). | 
| Gaithersburg,
                MD Montgomery Co. United States | Kentlands Blvd. / Market St. (39.12309, -77.23489) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.1480 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 1994 | Year Completed estimated (1993-2002). | 
| Gaithersburg,
                MD Montgomery Co. United States | Orchard Ridge Dr. / Mill Green Ave. (39.12559, -77.22635) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 37.9872 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2002 | ICD estimated from Google Maps linework. | 
| Gaithersburg,
                MD Montgomery Co. United States | Winter Walk Dr. / Highland Ridge Ave. (39.12807, -77.22692) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 34.2800 | Other (At-Grade) Single-Lane | 1998 | Year Completed estimated (1993-2002). Was cul-de-sac prior to addition of two more legs. ICD estimated from Google Maps linework. | 
| Boise,
                ID Ada Co. United States | S. Touchmark Way / E. Louise Dr. (43.60317, -116.34880) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 29.4050 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Boise,
                ID Ada Co. United States | S. Touchmark Way / S. Worth Way (43.60206, -116.34610) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 30.2704 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Arlington,
                VA Arlington Co. United States | Memorial Dr. / Arlington Memorial Bridge (38.88573, -77.06004) | Rotary Existing | Unknown Unknown | 0 Approaches 0 Driveways 114.3488 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Washington,
                DC N/A Co. United States | G St. / 3rd St. SW (38.88127, -77.01520) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 26.9620 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Washington,
                DC N/A Co. United States | G St. / 1st St. SW (38.88119, -77.01228) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 31.6106 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Washington,
                DC N/A Co. United States | H St. / Delaware Ave. (38.88028, -77.01262) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 31.6110 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Washington,
                DC N/A Co. United States | New York Ave. / Montana Ave. / West Virginia Ave. (38.91723, -76.97813) | Signalized Roundabout/Circle Existing | Signal None | 0 Approaches 0 Driveways 65.9769 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Washington,
                DC N/A Co. United States | Pennsylvania Ave. / Potomac Ave. (38.88034, -76.98549) | Signalized Roundabout/Circle Existing | Signal None | 0 Approaches 0 Driveways 81.8167 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Jensen Beach,
                FL Martin Co. United States | Jensen Beach Blvd. / Candice Ave. / Pineapple Dr. (27.24387, -80.22741) | Roundabout Existing | All-Way Yield At-grade Rail Crossing Signals/Gates (controlling circulatory roadway only) | 5 Approaches 0 Driveways 48.7680 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2002 | Railroad running through central island. ADT volume of 27000 on five-lane road west leg. Also an evacuation route. High volume FEC freight line. | 
| Jensen Beach,
                FL Martin Co. United States | SR 707 / Pineapple Dr. / Jensen Beach Causeway (27.25074, -80.22818) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.7914 | Other (At-Grade) Single-Lane | 1999 | RT only lanes entering roundabout on two approaches. ICD estimated from Google Maps linework. | 
| Brighton,
                MI Livingston Co. United States | Village Place Blvd. / Green Oak Dr. / Fieldcrest Dr. (42.50573, -83.75296) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.1480 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2006 | |
| Brighton,
                MI Livingston Co. United States | Village Place Blvd. / Green Oak Ave. (42.50698, -83.75462) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.1480 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | ICD estimated from Google Earth. | 
| Ancaster,
                ON Hamilton Canada | Wilson St. / Meadowbrook Dr. / Hamilton Dr. (43.20797, -80.00224) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.6911 | Other (At-Grade) Single-Lane | 2002 | ICD estimated from Google Maps linework. | 
| Markham,
                ON York Region Canada | Prospectors Dr. / Angus Glen Blvd. (43.89075, -79.31981) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 29.2641 | Other (At-Grade) Single-Lane | 2004 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Markham,
                ON York Region Canada | Prospectors Dr. / The Fairways (43.89400, -79.32079) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 24.0985 | Other (At-Grade) Single-Lane | 2004 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Richmond,
                VA Henrico Co. United States | Monument Ave. / Allen Ave. (37.55384, -77.46020) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 74.8004 | Other (At-Grade) Multilane (2 Lane, unspecified) | ICD estimated from Google Maps linework. | |
| Richmond,
                VA Henrico Co. United States | Stuart Circle (37.55246, -77.45788) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 35.9806 | Other (At-Grade) Multilane (2 Lane, unspecified) | ICD estimated from Google Maps linework. | |
| Greensboro,
                NC Guilford Co. United States | Greene St. / McGee St. (36.06852, -79.79192) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 21.2386 | Other (At-Grade) Single-Lane | 2006 | This is part of a major transformation of Greene Street in Downtown Greensboro. Greene Street is currently 4 lanes one-way and will be converted to 2-way traffic with one lane in each direction and angled parking in the middle of the street separated by a median. Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Concord,
                CA Contra Costa Co. United States | Landana Dr. / Mulberry Dr. (37.97886, -121.99430) | Traffic Calming Circle Existing | All-Way Yield None | 3 Approaches 0 Driveways 16.0041 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Huntington,
                NY Suffolk Co. United States | Clinton Ave. / Gerard St. (40.87225, -73.42886) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 14.4499 | Other (At-Grade) Single-Lane | 2002 | http://query.nytimes.com/gst/fullpage.html?res=9D04E4DB133DF931A15751C1A9649C8B63 ICD estimated from Google Maps linework. | 
| New Orleans,
                LA Orleans Par. United States | Lee Circle (St. Charles Ave. / Andrew Higgins Dr.) (29.94333, -90.07247) | Signalized Roundabout/Circle Existing | Other None | 4 Approaches 0 Driveways 99.3513 | Other (At-Grade) Unknown | Two tram lines run along the circulatory roadway. Some entry-circulating points are fully signalized; others are yield-controlled. ICD estimated from Google Maps linework. | |
| Metairie Terrace,
                LA Jefferson Par. United States | Causeway Blvd. (LA 3046) / US 61 (Airline Hwy.) (29.97476, -90.15636) | Rotary Existing | All-Way Yield None | 4 Approaches 0 Driveways 107.5965 | Other (At-Grade) Unknown | Single-point interchange using one circle. Entire circle is on causeway structure over railroad yards. ICD estimated from Google Maps linework. | |
| Pittsfield Township,
                MI Washtenaw Co. United States | Campus Pkwy. / Suncrest Dr. / (parking) (42.18764, -83.74729) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.1480 | Other (At-Grade) Single-Lane | 2002 | |
| Pittsfield Township,
                MI Washtenaw Co. United States | Campus Pkwy. / Community Dr. (42.18982, -83.74387) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.1480 | Other (At-Grade) Single-Lane | 2002 | |
| Meridian Township,
                MI Ingham Co. United States | Hulett Rd. / Bennett Rd. (42.69739, -84.44709) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.9884 | Other (At-Grade) Single-Lane | 2004 | ICD estimated from Google Maps linework. | 
| Manistee,
                MI Manistee Co. United States | Lakeshore Dr. / Monroe St. / Cottage Ln. (44.25355, -86.33302) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 45.3388 | Other (At-Grade) Single-Lane | 1992 | Before 1993. No splitter islands on east leg. ICD estimated from Google Maps linework. | 
| Carmel,
                IN Hamilton Co. United States | N. Westfield Blvd. / E. 96th St. (39.92686, -86.12680) | Roundabout Existing | Unknown Unknown | 3 Approaches 0 Driveways 55.8692 | Other (At-Grade) Single-Lane | 2005 | Completed December 2005. Fatal crash October 1, 2007: http://www.indystar.com/apps/pbcs.dll/article?AID=/20071003/LOCAL/710030465/-1/LOCAL17. 11861-05. ICD estimated from Google Maps linework. | 
| Carmel,
                IN Hamilton Co. United States | N. Ditch Rd. / W. 96th St. (39.92681, -86.18403) | Roundabout Existing | Unknown Unknown | 4 Approaches 0 Driveways 33.8879 | Other (At-Grade) Single-Lane | 2005 | Previously controlled by 4-way stop ICD estimated from Google Maps linework. | 
| (unincorporated),
                MI Livingston Co. United States | Kensington Rd. / Jacoby Rd. (42.55436, -83.69828) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2008 | Year Completed estimated (2006-2010). | 
| Muskegon,
                MI Muskegon Co. United States | W. Western Ave. / 3rd St. (43.23536, -86.25337) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 24.3635 | Other (At-Grade) Single-Lane | 2008 | Year Completed estimated (2006-2010). ICD estimated from Google Maps linework. | 
| Kalamazoo,
                MI Kalamazoo Co. United States | W. Michigan Ave. / Rankin Ave. (42.28220, -85.61948) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 51.8160 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2004 | Concentric striping in circulatory roadway. Replaced stop-controlled intersection with one uncontrolled approach. | 
| Seattle,
                WA King Co. United States | Bagley Ave. N / N 42nd St. (47.65796, -122.33260) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways | Other (At-Grade) Unknown | ||
| Bend,
                OR Deschutes Co. United States | NE 18th St. / Cooley Rd. (44.11047, -121.27940) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 44.5914 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | Only two legs to open initially - full operation in 2008. ICD estimated from Google Maps linework. | 
| Lawrence,
                KS Douglas Co. United States | Fall Creek Dr. / Running Ridge Rd. (38.98069, -95.28360) | Other Existing | Uncontrolled Unknown | 4 Approaches 0 Driveways 41.7789 | Other (At-Grade) Single-Lane | Functional Class: Local ICD estimated from Google Maps linework. | |
| Carmel,
                IN Hamilton Co. United States | W 96th St. / N Spring Mill Rd. (39.92713, -86.16510) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.8640 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2006 | |
| Macomb,
                MI Macomb Co. United States | 25 Mile Rd. / Hayes Rd. (42.70090, -82.97623) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.4973 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Bend,
                OR Deschutes Co. United States | SW Bond St. / Wilson St. (44.04616, -121.30970) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 33.4799 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2007 | Single-Lane except one separate right turn lane ICD estimated from Google Maps linework. | 
| Lawrence,
                KS Douglas Co. United States | Clinton Pkwy. / Lake Pointe Dr. (38.94298, -95.32938) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 31.5831 | Other (At-Grade) Single-Lane | 2005 | Fatal crash March 4, 2007. 11861-05.Functional Class: Arterial. ICD estimated from Google Maps linework. | 
| Seattle,
                WA King Co. United States | 8th Ave. NE / NE 115th St. (47.71221, -122.32060) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways | Other (At-Grade) Unknown | ||
| Seattle,
                WA King Co. United States | 8th Ave. NE / NE 117th St. (47.71402, -122.32070) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways | Other (At-Grade) Unknown | ||
| Seattle,
                WA King Co. United States | 8th Ave. NE / NE 120th St. (47.71584, -122.32070) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways | Other (At-Grade) Unknown | ||
| Seattle,
                WA King Co. United States | 8th Ave. NE / NE 123rd St. (47.71767, -122.32080) | Traffic Calming Circle Existing | Unknown Unknown | 0 Approaches 0 Driveways 29.7304 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Beaverton,
                OR Washington Co. United States | SW Hart Rd. / Sorrento Rd. / Juniper Terr. (45.46680, -122.80880) | Other Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.1283 | Other (At-Grade) Single-Lane | Functional Class: Collector. Pedestrian ramps into circulatory roadway. ICD estimated from Google Maps linework. | |
| Portland,
                OR Multnomah Co. United States | NE 24th Ave. / Brazee St. (45.54050, -122.64110) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | 1989 | Completed 10/10/1989. | 
| Portland,
                OR Multnomah Co. United States | NE 24th Ave. / Thompson St. (45.53896, -122.64110) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 56.8845 | Other (At-Grade) Single-Lane | 1989 | Completed 10/10/1989. ICD estimated from Google Maps linework. | 
| Portland,
                OR Multnomah Co. United States | NE 24th Ave. / Tillamook St. (45.53741, -122.64110) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 56.0495 | Other (At-Grade) Single-Lane | 1989 | Completed 10/10/1989. ICD estimated from Google Maps linework. | 
| Portland,
                OR Multnomah Co. United States | NE 21st Ave. / Thompson St. (45.53898, -122.64420) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 34.2980 | Other (At-Grade) Single-Lane | 1989 | Completed 10/10/1989. ICD estimated from Google Maps linework. | 
| Portland,
                OR Multnomah Co. United States | NE 21st Ave. / Brazee St. (45.54051, -122.64420) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 86.9974 | Other (At-Grade) Single-Lane | 1989 | Completed 10/10/1989. ICD estimated from Google Maps linework. | 
| Portland,
                OR Multnomah Co. United States | NE 37th Ave. / Morris St. / Wisteria St. (45.54467, -122.62500) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 16.7290 | Other (At-Grade) Single-Lane | 1986 | Completed 12/23/1986. ICD estimated from Google Maps linework. | 
| Portland,
                OR Multnomah Co. United States | NE 37th Ave. / Brazee St. (45.54057, -122.62500) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 119.6213 | Other (At-Grade) Single-Lane | 1987 | Completed 10/16/1987. ICD estimated from Google Maps linework. | 
| Portland,
                OR Multnomah Co. United States | NE 37th Ave. / Thompson St. (45.53904, -122.62500) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 94.5285 | Other (At-Grade) Single-Lane | 1987 | Completed 11/16/1987. ICD estimated from Google Maps linework. | 
| Portland,
                OR Multnomah Co. United States | SE 32nd Ave. / SE Lincoln St. (45.50825, -122.63270) | Traffic Calming Circle Existing | Unknown None | 4 Approaches 0 Driveways 12.5549 | Other (At-Grade) Single-Lane | 1990 | Completed 4/25/1990. ICD estimated from Google Maps linework. | 
| Portland,
                OR Multnomah Co. United States | SE 30th Ave. / SE Caruthers St. (45.50550, -122.63470) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 78.6812 | Other (At-Grade) Single-Lane | 1990 | Completed 4/23/1990. ICD estimated from Google Maps linework. | 
| Portland,
                OR Multnomah Co. United States | SE 31st Ave. / SE Clinton St. (45.50354, -122.63360) | Traffic Calming Circle Existing | Unknown None | 4 Approaches 0 Driveways 14.2301 | Other (At-Grade) Single-Lane | 1990 | Completed 6/22/1990. ICD estimated from Google Maps linework. | 
| Portland,
                OR Multnomah Co. United States | SE 23rd Ave. / SE Clinton St. (45.50339, -122.64260) | Traffic Calming Circle Existing | Unknown None | 4 Approaches 0 Driveways 31.8085 | Other (At-Grade) Single-Lane | 1990 | Completed 6/22/1990. ICD estimated from Google Maps linework. | 
| Portland,
                OR Multnomah Co. United States | SE 37th Ave. / SE Lincoln St. (45.50806, -122.62570) | Traffic Calming Circle Existing | Unknown None | 4 Approaches 0 Driveways 15.0659 | Other (At-Grade) Single-Lane | 1990 | Completed 4/25/1990. ICD estimated from Google Maps linework. | 
| Portland,
                OR Multnomah Co. United States | SE 43rd Ave. / SE Lincoln St. (45.50799, -122.61810) | Traffic Calming Circle Existing | Unknown None | 4 Approaches 0 Driveways 22.5989 | Other (At-Grade) Single-Lane | 1990 | Completed 4/23/1990. ICD estimated from Google Maps linework. | 
| Portland,
                OR Multnomah Co. United States | SE 51st Ave. / SE Lincoln St. (45.50803, -122.61000) | Traffic Calming Circle Existing | Unknown None | 4 Approaches 0 Driveways 15.0659 | Other (At-Grade) Single-Lane | 1990 | Completed 4/23/1990. ICD estimated from Google Maps linework. | 
| Portland,
                OR Multnomah Co. United States | SE 55th Ave. (N) / SE Lincoln St. (45.50806, -122.60650) | Traffic Calming Circle Existing | One-Way/Two-Way Stop None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 1990 | Completed 5/14/1990. | 
| Portland,
                OR Multnomah Co. United States | SE 55th Ave. (S) / SE Lincoln St. (45.50804, -122.60610) | Traffic Calming Circle Existing | One-Way/Two-Way Stop None | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 1990 | Completed 5/14/1990. | 
| Portland,
                OR Multnomah Co. United States | SE 58th Ave. (S) / SE Lincoln St. (45.50805, -122.60380) | Traffic Calming Circle Existing | Unknown None | 4 Approaches 0 Driveways 104.6245 | Other (At-Grade) Single-Lane | 1990 | Completed 5/8/1990. ICD estimated from Google Maps linework. | 
| Sacramento,
                CA Sacramento Co. United States | 26th St. / I St. (38.57565, -121.47140) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 81.2327 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Sacramento,
                CA Sacramento Co. United States | 24th St. / I St. (38.57636, -121.47410) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 55.0883 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Sacramento,
                CA Sacramento Co. United States | 24th St. / H St. (38.57746, -121.47360) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 70.0264 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Sacramento,
                CA Sacramento Co. United States | 26th St. / E St. (38.58003, -121.46950) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 15.8721 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Davis,
                CA Yolo Co. United States | Peter J Shields Ave. / East Quad (38.54061, -121.74820) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 16.8150 | Other (At-Grade) Unknown | On campus of University of California at Davis. Restricted to bicycles and delivery vehicles. YIELD pavement legends but no YIELD signs. Functional Class: Local ICD estimated from Google Maps linework. | |
| Davis,
                CA Yolo Co. United States | Peter J Shields Ave. / West Quad (38.54028, -121.75010) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 14.9467 | Other (At-Grade) Single-Lane | On campus of University of California at Davis. Restricted to bicycles and delivery vehicles. YIELD pavement legends but no YIELD signs. Functional Class: Local ICD estimated from Google Maps linework. | |
| Davis,
                CA Yolo Co. United States | California Ave. / North Quad (38.54252, -121.75300) | Other Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 20.5511 | Other (At-Grade) Single-Lane | On campus of University of California at Davis. Restricted to bicycles and delivery vehicles. YIELD pavement legends but no YIELD signs. Functional Class: Local ICD estimated from Google Maps linework. | |
| Davis,
                CA Yolo Co. United States | California Ave. / Storer Mall (38.54082, -121.75250) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 13.0783 | Other (At-Grade) Single-Lane | On campus of University of California at Davis. Restricted to bicycles and delivery vehicles. YIELD pavement legends but no YIELD signs. Functional Class: Local ICD estimated from Google Maps linework. | |
| Davis,
                CA Yolo Co. United States | California Ave. / Hutchison Dr. (38.53909, -121.75200) | Other Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 38.3015 | Other (At-Grade) Single-Lane | On campus of University of California at Davis. Restricted to bicycles and delivery vehicles. YIELD pavement legends but no YIELD signs. Functional Class: Local. Year Completed unknown (before 1993). ICD estimated from Google Maps linework. | |
| Woodland,
                CA Yolo Co. United States | Palm Ave. / Keystone Ave. (38.68635, -121.77050) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways 41.0198 | Other (At-Grade) Single-Lane | Circular intersection in older neighborhood. ICD estimated from Google Maps linework. | |
| Madison,
                WI Dane Co. United States | Kendall Ave. / Grand Ave. (43.07145, -89.43156) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | 1997 | |
| Madison,
                WI Dane Co. United States | New Washburn Way / Dandaneau Trl. / Chautauqua Trl. (43.04669, -89.51501) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 13.9650 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Madison,
                WI Dane Co. United States | Glenway St. / Hillcrest Dr. (43.06437, -89.43896) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways 11.3433 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| West Roxbury,
                MA Suffolk Co. United States | W. Roxbury Pkwy. / Lagrange St. / Newton St. / Hammond Pond Pkwy. / Hammond St. (42.31049, -71.16329) | Rotary Existing | All-Way Yield Unknown | 5 Approaches 1 Driveways 72.4235 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2014 | Retrofitted in 2014 with the pavement markings. ICD estimated from Google Maps linework. Lacks entry deflection on multiple legs, intersection sight distance. | 
| West Roxbury,
                MA Suffolk Co. United States | W. Roxbury Pkwy. / Grove St. (42.30330, -71.15137) | Rotary Existing | Unknown Unknown | 0 Approaches 0 Driveways 72.4319 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| West Roxbury,
                MA Suffolk Co. United States | W. Roxbury Pkwy. / Veterans of Foreign Wars Pkwy. (42.29649, -71.14560) | Rotary Existing | Unknown Unknown | 0 Approaches 0 Driveways 67.1393 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| West Roxbury,
                MA Suffolk Co. United States | W. Roxbury Pkwy. / Centre St. (42.28730, -71.14774) | Rotary Existing | Unknown Unknown | 4 Approaches 0 Driveways 68.9162 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Tumwater,
                WA Thurston Co. United States | Tumwater Blvd. / New Market St. (46.97971, -122.91320) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 49.7052 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | Functional Class: Arterial ICD estimated from Google Maps linework. | 
| Medford,
                OR Jackson Co. United States | Highland Dr. / Siskiyou Blvd. (42.32110, -122.84986) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 42.6720 | Other (At-Grade) Single-Lane | 2006 | Elliptical shaped. ICD = 140 ft x 125 ft. Fire station on south leg. | 
| Yelm,
                WA Thurston Co. United States | SR 510 / Mud Run Rd. SE (46.96465, -122.63230) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.8630 | Other (At-Grade) Single-Lane | 2010 | October 2010. ICD estimated from Google Maps linework. | 
| Mendon,
                NY Monroe Co. United States | NY 65 / NY 251 (42.99061, -77.57766) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 35.8180 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Springfield,
                OR Lane Co. United States | Hayden Bridge Way / Pioneer Pkwy. / Wayside Ln. (44.07090, -123.02880) | Roundabout Existing | All-Way Yield Rectangular Rapid Flashing Beacon (RRFB) | 5 Approaches 0 Driveways 52.3441 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | http://www.registerguard.com/news/2006/09/21/a1.roundabout.0921.p1.php?section=cityregion Prior configuration was an offset T with Wayside east of Pioneer Parkway East. M L King Parkway did not exist. ICD estimated from Google Maps linework. | 
| Hilliard,
                OH Franklin Co. United States | Britton Pkwy. / Hayden Run Rd. (40.06202, -83.13750) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.8640 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | ICD = 160 feet in one-lane section, 180 in two-lane section. | 
| Hilliard,
                OH Franklin Co. United States | Britton Pkwy. / Riggins Rd. (40.06493, -83.13857) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 54.8637 | Other (At-Grade) Multilane (2 Lane, 2x1 max) | 2006 | Converted from 2x2 roundabout to a 2x1 roundabout in 2020 by changing the EB and WB thru/right lanes to RT only lanes. | 
| Eno,
                CO Adams Co. United States | Memphis St. / E. 105th Way (39.88830, -104.79660) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 23.8265 | Other (At-Grade) Single-Lane | 2006 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Eno,
                CO Adams Co. United States | Memphis St. / E. 106th Pl. (39.88960, -104.79650) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 25.6588 | Other (At-Grade) Single-Lane | 2006 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Eno,
                CO Adams Co. United States | Kittredge St. / E. 105th Ave. (39.88913, -104.80030) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 41.2377 | Other (At-Grade) Single-Lane | 2006 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Eno,
                CO Adams Co. United States | Kittredge St. / E. 107th Ave. (39.89114, -104.80140) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 29.3237 | Other (At-Grade) Single-Lane | 2006 | Functional Class: Local ICD estimated from Google Maps linework. | 
| Oshkosh,
                WI Winnebago Co. United States | Jackson St. / Murdock Ave. (44.03947, -88.54265) | Roundabout Existing | All-Way Yield Rectangular Rapid Flashing Beacon (RRFB) | 4 Approaches 0 Driveways 41.1480 | Other (At-Grade) Multilane (2 Lane, 2x2 max) | 2010 | |
| Seattle,
                WA King Co. United States | 34th Ave. SW / SW Elmgrove St. (47.53009, -122.37530) | Traffic Calming Circle Existing | Unknown Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Unknown |