Roundabouts Database Index

29411 Results

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City, State County Country	Intersection (Lat, Lng)	Type Status	Control Type / Other Control Type	Approaches / Driveways / ICD (m)	Functional Class / LaneType	Year Completed	Comments
Henderson, NV Clark Co. United States	Kelso Dunes Ave. / Marks St. (36.05279, -115.03762)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 38.1000	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2003).
Henderson, NV Clark Co. United States	Kelso Dunes Ave. / Julia St. (36.05273, -115.04190)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2003).
Kitchener, ON Waterloo Canada	Max Becker Dr. / (unknown) (43.40516, -80.50125)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2002	Year Completed estimated (2001-2005).
Kitchener, ON Waterloo Canada	Cotton Grass St/(unknown) (43.40708, -80.50347)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2002	Year Completed estimated (2001-2005).
Las Vegas, NV Clark Co. United States	W Park Run Dr. / Canyon Pointe (36.16153, -115.33394)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.1960	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Year Completed estimated (before 2003).
Dove Mountain Resort, AZ Pima Co. United States	N Dove Mountain Blvd. / N Secret Springs Dr. (32.46698, -111.10013)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.6720	Other (At-Grade) Single-Lane	2002
Clayton, NC Johnston Co. United States	Oleander Dr. / (parking lots) (35.64867, -78.39782)	Other Existing	Uncontrolled Unknown	2 Approaches 2 Driveways 25.2335	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2004). ICD estimated from Google Maps linework.
Clayton, NC Johnston Co. United States	Athletic Club Blvd. / Charleston Dr. / Stansbury Ln. (35.69108, -78.42676)	Other Existing	All-Way Yield None	3 Approaches 0 Driveways 54.3202	Other (At-Grade) Single-Lane	2002	Pedestrian access to central island. Year Completed estimated (1999-2004). ICD estimated from Google Maps linework.
West Jordan, UT Salt Lake Co. United States	Morning Laurel Ln. / Meadow Lily Ln. (40.58650, -112.00915)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 21.7681	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Liberty, MO Clay Co. United States	N Stewart Rd. / College St. / Conistor Ln. / (parking) (39.24629, -94.45100)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5760	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1997-2003).
Kansas City, MO Clay Co. United States	N Sycamore Ave. / N 85th Terr. / Shoal Creek Valley Dr. (39.24733, -94.48586)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.9600	Other (At-Grade) Single-Lane	2002	No truck apron. Year Completed estimated (1997-2003).
Boston, MA Suffolk Co. United States	Braeburn Rd / Myopia Rd (42.26185, -71.12645)	Traffic Calming Circle Existing	One-Way/Two-Way Stop None	3 Approaches 1 Driveways 21.3360	Other (At-Grade) Single-Lane	2002
Reno, NV Washoe Co. United States	Raggio Pkwy. (Dandini Blvd.) / Spectrum Blvd. (39.57506, -119.80705)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.4800	Other (At-Grade) Single-Lane	2002
Chesterton, IN Porter Co. United States	Dickinson Rd. / Rail Rd. (41.58939, -87.03668)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.7200	Other (At-Grade) Single-Lane	2002	Painted splitter islands; right-turn pavement arrows on each entry. Year Completed estimated (1998-2003).
Redding, CA Shasta Co. United States	Madison River Dr. / Clark River Dr. (40.54198, -122.31914)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2004).
Flower Mound, TX Denton Co. United States	Lakeside Pkwy. / Lakeside Village Blvd. (32.98574, -97.06503)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 41.1480	Other (At-Grade) Single-Lane	2002	.
Victoria, MN Carver Co. United States	Watermark Pkwy. / Kelzer Pond Dr. (44.85331, -93.67349)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 38.1005	Unknown Single-Lane	2002	No splitter islands. ICD estimated from Google Maps linework.
Idaho Falls, ID Bonneville Co. United States	S Utah Ave. / Bridgeport Dr. (43.48859, -112.04979)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 47.6574	Other (At-Grade) Single-Lane	2002	Eagle Rock Fountain in center island. Roundabout was partially reconstructed with geometric improvements in 2014. Original construction was in 2002. ICD estimated from Google Maps linework.
Boardman, OR Morrow Co. United States	Tatone St. / City Center Dr. (45.83253, -119.70259)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways 43.2722	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
West Chester Township, OH Butler Co. United States	Hutzelman Way / Plum Tree Dr. (39.35732, -84.46578)	Other Existing	All-Way Yield None	3 Approaches 0 Driveways 31.3977	Other (At-Grade) Single-Lane	2002	Painted splitter islands. ICD estimated from Google Maps linework.
Liberty Township, OH Butler Co. United States	The Trails Blvd. / Kensington Trl. / Windsor Trl. / Cambridge Trl. (39.39451, -84.34693)	Other Existing	All-Way Stop None	4 Approaches 0 Driveways 50.7634	Other (At-Grade) Single-Lane	2002	Stop control; no splitter islands. ICD estimated from Google Maps linework.
Liberty Township, OH Butler Co. United States	Berkshire Pl. / Amberly Ct. / Wiltshire Ct. (39.39282, -84.34687)	Other Existing	All-Way Stop None	4 Approaches 0 Driveways 27.6898	Other (At-Grade) Single-Lane	2002	Stop control and no splitter islands. ICD estimated from Google Maps linework.
West Fargo, ND Cass Co. United States	9th St. W / 38th Ave. W (46.82266, -96.91444)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 88.2608	Other (At-Grade) Single-Lane	2002	Year completed estimated (1997-2003). ICD estimated from Google Maps linework.
Redding, CA Shasta Co. United States	Madison River Dr. / Yellowstone Dr. (40.54201, -122.31782)	Traffic Calming Circle Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2004).
Redding, CA Shasta Co. United States	Yellowstone Dr. / Western Oak Dr. (40.54391, -122.31766)	Traffic Calming Circle Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 45.3790	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2004). ICD estimated from Google Maps linework.
Chaska, MN Carver Co. United States	Hundertmark Rd. / Clover Ridge Dr. (44.81856, -93.63370)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.3460	Other (At-Grade) Single-Lane	2002	Year completed estimated (1993-2003). ICD estimated from Google Maps linework.
Chaska, MN Carver Co. United States	Clover Ridge Dr. / Clover Preserve Dr. / Walden Dr. (44.81900, -93.63693)	Roundabout Existing	Unknown None	4 Approaches 0 Driveways 28.8042	Other (At-Grade) Single-Lane	2002	Year completed estimated (1993-2002). ICD estimated from Google Maps linework.
Mooresville, NC Iredell Co. United States	Plantation Ridge Dr. / Singleton Rd. (35.58837, -80.87576)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.0800	Other (At-Grade) Single-Lane	2002	Year completed estimated (1994-2004). ICD estimated from Google Maps linework.
Raleigh, NC Wake Co. United States	Dunn Rd. / Falls River Ave. / All Points View Way (35.92436, -78.57615)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.4564	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Wake Forest, NC Wake Co. United States	Shearon Farms Ave. / Clover Bank St. (35.91264, -78.54571)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.2479	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Raleigh, NC Wake Co. United States	Wild Mountain Ln. / Lagrange Dr. (35.88199, -78.72855)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.2242	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Raleigh, NC Wake Co. United States	Silver View Ln. / Wind Mountain Ln, (35.88202, -78.73134)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 24.1919	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Winston-Salem, NC Forsyth Co. United States	Waughtown St. / Fayetteville St. / Lomond St. (36.07442, -80.23228)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.9943	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Kernersville, NC Forsyth Co. United States	Lambeth Farm Ln. / Lake Way (36.11845, -80.08253)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 39.5559	Other (At-Grade) Single-Lane	2002	No splitter islands. Year completed estimated (2002-2005) ICD estimated from Google Maps linework.
Alexander City, AL Tallapoosa Co. United States	Tallapoosa St (32.94353, -85.95363)	Roundabout Existing	One-Way/Two-Way Stop None	4 Approaches 0 Driveways 48.1099	Other (At-Grade) Single-Lane	2002	Peanut-shaped roundabout. Year completed estimated (1997-2006). ICD estimated from Google Maps linework.
Cary, NC Wake Co. United States	Cary Glen Blvd. / Waverly Hills Dr. (35.81174, -78.91465)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.7728	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Evans, GA Columbia Co. United States	Jamestown Ave. / Blackfoot Dr. (33.57555, -82.16361)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.8667	Other (At-Grade) Single-Lane	2002	Functional Class: Local ICD estimated from Google Maps linework.
Evans, GA Columbia Co. United States	Prince George Ave. / Blackfoot Dr. (33.57583, -82.16778)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.8617	Other (At-Grade) Single-Lane	2002	Functional Class: Local ICD estimated from Google Maps linework.
Live Oak, FL Suwannee Co. United States	SR 51 / Walker St. / Irvin Ave. SW / CR 136 / 11th St. (30.28988, -82.99619)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 53.6268	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Jacksonville, FL Duval Co. United States	University of North Florida N Entrance Rd (30.27627, -81.50918)	Roundabout Existing	All-Way Yield None	2 Approaches 1 Driveways 36.1000	Other (At-Grade) Single-Lane	2002	Functional Class: Local ICD estimated from Google Maps linework.
Miramar Beach, FL Okaloosa Co. United States	Commons Dr. W / Home Depot Entrance (30.38823, -86.44289)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0285	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Port Salerno, FL Martin Co. United States	Old Dixie Hwy / SE Cove Rd. (27.14054, -80.19015)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.6962	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Adjacent to railroad crossing. ICD estimated from Google Maps linework.
Port Salerno, FL Martin Co. United States	Old Dixie Hwy / St. Lucie Blvd. / SE Manatee Ln. (27.14908, -80.20197)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.8195	Other (At-Grade) Single-Lane	2002	Long oval. ICD estimated from Google Maps linework.
Fort Pierce, FL St. Lucie Co. United States	Avenue D / 15th St. N (27.45274, -80.33948)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.3840	Other (At-Grade) Single-Lane	2002
Cocoa, FL Brevard Co. United States	Clubhouse Dr. / Auburn Lakes Dr. (28.28344, -80.71081)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.0866	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
(unincorporated), FL St. Lucie Co. United States	NW Peacock Blvd. / NW Cashmere Blvd. / Old Inlet Dr. (27.33711, -80.38293)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.3159	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
(unincorporated), FL Brevard Co. United States	Sonoma Way / Merlot Dr. (28.27505, -80.73685)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 24.1920	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Orlando, FL Orange Co. United States	Oxalis Dr. / Yucatan Dr. (28.54392, -81.30126)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 69.2445	Other (At-Grade) Single-lane w/ Traversable Central Island	2002	Fatal crash February 21, 2010. ICD estimated from Google Maps linework.
Buffalo, MN Wright Co. United States	Pulaski Rd. / 16th St. NE (45.19438, -93.84424)	Other Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2002	Crosswalk on east leg passes within circulatory roadway.
Colorado Springs, CO El Paso Co. United States	Cedar Creek View / (parking lot) (38.85572, -104.72340)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.1815	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Newport Rd. / Vapor Trl. (38.80787, -104.72680)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 25.1284	Other (At-Grade) Single-Lane	2002	Y-shaped intersection. ICD estimated from Google Maps linework.
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.
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.
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.
Port St. Lucie, FL St. Lucie Co. United States	SE Westmorelane Blvd. / Gowan Dr. (27.25913, -80.29256)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.5423	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Port St. Lucie, FL St. Lucie Co. United States	SE Westmorelane Blvd. / Bakersfield St. (27.25836, -80.28521)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.7276	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Santa Fe, NM Santa Fe Co. United States	Botulph Rd. / Arroyo Chamiso Rd. / Miguel Chavez Rd. (35.64938, -105.94790)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.1153	Other (At-Grade) Single-Lane	2002	Urban Compact, Southeast Santa Fe neighborhood Functional Class: Minor Collector ICD estimated from Google Maps linework.
Jessup, MD Anne Arundel Co. United States	MD 198 (Laurel Fort Meade Rd.) / MD 32 WB Ramps (39.09178, -76.75688)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 53.3400	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2002	Lanes reduced in 2010. 21442
Jessup, MD Anne Arundel Co. United States	MD 198 (Laurel Fort Meade Rd.) / MD 32 EB Ramps (39.08997, -76.75736)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 53.3400	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2002	Lanes reduced in 2010. 21442
Jackson, MI Jackson Co. United States	4th St. / West Ave. (42.22067, -84.41847)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.3790	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Between 1999 and 2005. 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
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.
Fountain Green, MD Harford Co. United States	Prospect Mill Rd. / Wagner Rd. (39.55824, -76.30247)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 31.3072	Other (At-Grade) Single-Lane	2002	http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 Functional Class: Collector ICD estimated from Google Maps linework.
Howard, WI Brown Co. United States	Velp Ave. (CTH HS) / Woodale Ave. (CTH EB) (44.57293, -88.07800)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.3300	Other (At-Grade) Single-Lane	2002	Roundabout Located near industrial park, rail line, and the Mountain-Bay Recreational Trail. Roundabout is at the intersection of two county highways and is slightly larger than the roundabouts built in 1999 and 2001 in Howard and De Pere. Completed August 2002. http://www.co.brown.wi.us/Planning/roundabouts.html. Fatal crash June 5, 2011. 11861-05. Functional Class: Arterial ICD estimated from Google Maps linework.
Cape Coral, FL Lee Co. United States	SE 24th Ave. / SE 9th St. / Birkdale Ave. (26.63679, -81.92426)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.5541	Other (At-Grade) Single-Lane	2002	Originally two stop-controlled, offset T-intersections. Now is a hotdog/racetrack-shaped roundabout. Date estimated. ICD estimated from Google Maps linework.
Blue Lake, CA Humboldt Co. United States	Blue Lake Blvd. / Chartin Rd. (40.88640, -123.99540)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.3789	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Orinda, CA Contra Costa Co. United States	Hall Dr. / Donald Dr. (37.86411, -122.15310)	Traffic Calming Circle Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 17.9148	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Vancouver, BC Greater Vancouver Regional District Canada	Stanley Park Dr. / Pipeline Rd. / Park Entrance (49.29745, -123.13610)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.7024	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Starkville, MS Oktibbeha Co. United States	Blackjack Rd. / Oktoc Rd. (33.44708, -88.79340)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 31.8893	Other (At-Grade) Single-Lane	2002	http://www.msstate.edu/web/media/detail.php?id=1874 Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Denali National Park, AK Denali National Park United States	Denali National Park (63.73358, -148.91550)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.3554	Other (At-Grade) Single-Lane	2002	Date estimated. ICD estimated from Google Maps linework.
Asheville, NC Buncombe Co. United States	WT Weaver Blvd / University Heights (35.61435, -82.56285)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.1862	Other (At-Grade) Single-Lane	2002	Completed August 2002. Entrance to University of North Carolina at Asheville. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Coralville, IA Johnson Co. United States	1st Ave. / Holiday Rd. (41.69276, -91.56655)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.8896	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Opened September 1, 2002. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Colorado Springs, CO El Paso Co. United States	Chapel Hills Dr. / Graycroft (38.97358, -104.78310)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.7125	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Functional Class: Arterial ICD estimated from Google Maps linework.
Modesto, CA Stanislaus Co. United States	Bowen Ave. / Phelps Ave. (37.67470, -121.00600)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 22.6873	Other (At-Grade) Single-Lane	2002	Previously controlled by one-way stop ICD estimated from Google Maps linework.
Modesto, CA Stanislaus Co. United States	Lifescapes Dr. / Grecian Ave. (37.69840, -120.98540)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 24.5700	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
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.
Mount Aetna, MD Washington Co. United States	MD 66 (Mapleville Rd.) / Mount Aetna Rd. (39.60243, -77.62425)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 44.1703	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Scaggsville, MD Howard Co. United States	Hopkins-Gorman Rd. / US 29 NB Ramps (39.15846, -76.88660)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 59.2695	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	ICD estimated from Google Maps linework.
Medford, MN Steele Co. United States	CR 12 / I-35 SB Ramps (44.17364, -93.26057)	Roundabout Existing	All-Way Yield None	6 Approaches 0 Driveways 67.6722	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Maplewood, MN Ramsey Co. United States	Frost Ave. / English St. (44.99927, -93.04572)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.5374	Other (At-Grade) Single-Lane	2002	Completed October 2002. Twenty-year ADT is 15,000. ICD estimated from Google Maps linework.
Latham, NY Albany Co. United States	Latham Circle: Rte 2 / Rte 9 (42.74810, -73.76098)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 76.2000	Other (At-Grade) Multilane (2 Lane, 2x1 max)	2002
Nashua, NH Hillsborough Co. United States	SR 130 (Broad St.) / Coburn Ave. / Chuck Drudging Dr. (42.75617, -71.51653)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.0619	Other (At-Grade) Single-Lane	2002	Entrance to north high school, very heavy traffic in AM peak. ICD estimated from Google Maps linework.
Washington, UT Washington Co. United States	Coral Canyon Blvd. / Canyon Greens Dr. (37.16151, -113.44740)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.7951	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Burnaby, BC Greater Vancouver Regional District Canada	Ridge Dr. / Barnet Rd. / Duthie Ave. (49.28328, -122.95360)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 30.0000	Other (At-Grade) Single-Lane	2002
New Westminster, BC Greater Vancouver Regional District Canada	10th St. / Carnarvon St. (49.20056, -122.91550)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 17.1686	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Greenville, MI Montcalm Co. United States	Meijer Dr. / Greenville West Dr. (43.17297, -85.27965)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.4855	Other (At-Grade) Single-Lane	2002	Year Completed estimated (1999-2005). ICD estimated from Google Maps linework.
Lansing, MI Ingham Co. United States	Moores River Dr. / Boston Blvd. / Pattengill Ave. (42.71923, -84.57225)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 15.7942	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Cresthaven Dr. / Fairpark Dr. / Timberline Private (45.27486, -75.70937)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7465	Other (At-Grade) Single-Lane	2002	Minimal splitter islands. Functional Class: Local ICD estimated from Google Maps linework.
Port St. Lucie, FL St. Lucie Co. United States	SE Westmoreland Blvd. / Morningside Blvd. (27.25997, -80.30961)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 49.8991	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Phoenix, AZ Maricopa Co. United States	W Riverwood Blvd. / W Kirby Ave. (33.41608, -112.27480)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 16.9473	Other (At-Grade) Single-Lane	2002	Painted splitter islands. ICD estimated from Google Maps linework.
Central Oahu Regional Park, HI Oahu Co. United States	Ka Uka Blvd. / Waipio Uka St. (21.41762, -158.00730)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 41.1385	Other (At-Grade) Single-Lane	2002	Completed prior to 2006 Construction stage aerial in Google Earth. Functional Class: Park Road ICD estimated from Google Maps linework.
Town and Country, MO St. Louis Co. United States	MO 141 SB Ramps / Woods Mill Rd. (38.63523, -90.51449)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 38.2503	Other (At-Grade) Single-Lane	2002	Previously controlled by one-way stop ICD estimated from Google Maps linework.
Advance, NC Davie Co. United States	NC 801 / I-40 EB Ramps (36.00655, -80.44083)	Roundabout Removed	All-Way Yield None	3 Approaches 0 Driveways 17.3907	Freeway Ramps (Grade-Separated) Single-Lane	2002	Developer-built "temporary" intersection fix. Previously controlled by one-way stop ICD estimated from Google Maps linework.
Clemmons, NC Forsyth Co. United States	Styers Ferry Rd. / Utility Dr. (River Ridge Roundabout) (36.07380, -80.39124)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.9598	Other (At-Grade) Single-Lane	2002	Built by developer. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Columbine, CO Jefferson Co. United States	S. Simms St. / W. Quincy Ave. (39.63865, -105.12860)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.0301	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	ICD estimated from Google Maps linework.
Milwaukee, WI Milwaukee Co. United States	S. 6th St. / W. Virginia St. / Florida St. (43.02698, -87.91770)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.7816	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Built as terminal of new bridge. Signal located downstream approximately 150-200 feet away (estimated) that queues back through roundabout during weekday p.m. peak. No lane designations on approach. Functional Class: Arterial ICD estimated from Google Maps linework.
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.
Colorado Springs, CO El Paso Co. United States	Chapel Hills Dr. / Divot Trl. (38.97569, -104.77560)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.7116	Other (At-Grade) Multilane (2 Lane, unspecified)	2002	Functional Class: Arterial ICD estimated from Google Maps linework.