City,
State County Country |
Intersection (Lat, Lng) |
Type Status |
Control Type / Other Control Type | Approaches / Driveways / ICD (m) |
Functional Class / LaneType |
Year Completed | Comments |
---|---|---|---|---|---|---|---|
Temple Hills,
MD Prince Georges Co. United States |
MD 637 (Naylor Rd.) / Good Hope Ave. (38.84922, -76.95655) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 31.6248 |
Other (At-Grade) Single-Lane |
2001 | ICD estimated from Google Maps linework. |
Temple Hills,
MD Prince Georges Co. United States |
MD 637 (Naylor Rd.) / Oxon Run Dr. (38.84986, -76.95789) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 34.4150 |
Other (At-Grade) Single-Lane |
2001 | ICD estimated from Google Maps linework. |
Castle Marina,
MD Queen Annes Co. United States |
MD 18 / Castle Marina Rd. (38.97871, -76.28938) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 28.7819 |
Other (At-Grade) Single-Lane |
1999 | Previously controlled by two-way stop ICD estimated from Google Maps linework. |
Kennewick,
WA Benton Co. United States |
Columbia Park Drive #1 (46.22221, -119.15110) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 38.8367 |
Other (At-Grade) Single-Lane |
2001 | Completed February 2001. Functional Class: Local ICD estimated from Google Maps linework. |
Kennewick,
WA Benton Co. United States |
Columbia Park Drive #2 (46.22223, -119.14630) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 54.5366 |
Other (At-Grade) Single-Lane |
2001 | Completed February 2001 Functional Class: Local ICD estimated from Google Maps linework. |
Juneau,
AK Juneau United States |
Douglas Hwy / North Douglas Hwy (58.29718, -134.43280) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 38.9134 |
Other (At-Grade) Single-Lane |
2005 | Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework. |
Portland,
OR Multnomah Co. United States |
NE Mt. Hood Ave. / Frontage Rd. / PDX Airport Economy Blue Lot / PDX Airport Economy Red Lot (45.57770, -122.55950) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 36.7822 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
Bend,
OR Deschutes Co. United States |
NW Mt. Washington Dr. / NW Skyliners Rd. (44.05369, -121.35490) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 40.3425 |
Other (At-Grade) Single-Lane |
2005 | Roundabout constructed with addition of south leg. ICD estimated from Google Maps linework. |
Bend,
OR Deschutes Co. United States |
NW Shevlin Park Rd. / Newport Ave. / College Way (44.06240, -121.33770) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 32.6125 |
Other (At-Grade) Single-Lane |
2006 | ICD estimated from Google Maps linework. |
Bend,
OR Deschutes Co. United States |
NW Mt. Washington Dr. / Shevlin Park Rd. (44.06780, -121.35530) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 37.7584 |
Other (At-Grade) Single-Lane |
2000 | South leg on Mt. Washington Drive added as part of new development. ICD estimated from Google Maps linework. |
Bend,
OR Deschutes Co. United States |
NW Mt. Washington Dr. / NW Crossing Dr. (44.05890, -121.35670) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 32.6144 |
Other (At-Grade) Single-Lane |
2000 | Both roadways brand new as part of new development. ICD estimated from Google Maps linework. |
Bend,
OR Deschutes Co. United States |
SW Century Dr. / SW Mt. Washington Dr. / SW Reed Market Dr. (44.03860, -121.33590) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 57.9120 |
Other (At-Grade) Single-Lane |
2001 | Roundabout sized for ultimate conversion to double lane. |
Bend,
OR Deschutes Co. United States |
SW 14th St. / SW Century Dr. / SW Simpson Ave. (44.04790, -121.33160) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 30.9036 |
Other (At-Grade) Single-Lane |
2002 | Driveways located between crosswalk and circulatory roadway on both sides of west leg. ICD estimated from Google Maps linework. |
Bend,
OR Deschutes Co. United States |
NW 14th St. / NW Galveston Ave. (44.05660, -121.33180) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 30.8991 |
Other (At-Grade) Single-Lane |
2002 | ICD estimated from Google Maps linework. |
Bend,
OR Deschutes Co. United States |
NW 14th St. / Newport Ave. (44.06230, -121.33170) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 32.6126 |
Other (At-Grade) Single-Lane |
2005 | ICD estimated from Google Maps linework. |
Bend,
OR Deschutes Co. United States |
NW 9th St. / NW Newport Ave. / NW Nashville Ave. (44.06240, -121.32450) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 32.6125 |
Other (At-Grade) Single-Lane |
2005 | Completed in August 2005. Intersection previously had five legs. Roundabout changes one leg prior to the roundabout to right in/out and redirects another leg to the roundabout. Located near Grade School on Newport Avenue. ICD estimated from Google Maps linework. |
Portland,
OR Multnomah Co. United States |
SW Terwilliger Blvd. / SW Palater Rd. (45.45290, -122.67660) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 38.1000 |
Other (At-Grade) Single-Lane |
2002 | Roundabout replaces existing Y-intersection, adds fourth leg to serve college law school. Includes driveway into roundabout serving two homes. Roundabout is on tilted plane with central island plane steeper than inscribed circle plane to manage cross slopes. Northeast leg (Palater Road) has 8-9 percent grade down into roundabout, then flattens using a short vertical curve to a zero percent crown at the top of the circulatory roadway. Maximum grade through the roundabout is 4 percent; maximum cross slope is -2 percent. First roundabout under City of Portland jurisdiction. |
Anchorage,
AK Anchorage United States |
Dowling Rd. / New Seward Hwy SB Ramps (61.16636, -149.85780) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 35.1352 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) |
2004 | Previously controlled by one-way stop ICD estimated from Google Maps linework. |
Anchorage,
AK Anchorage United States |
Dowling Rd. / New Seward Hwy NB Ramps (61.16637, -149.85520) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 38.0151 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) |
2004 | Spiral striping. ICD estimated from Google Maps linework. |
Culloden,
GA Monroe Co. United States |
SR 7-US 341 / SR 74 (32.87954, -84.09019) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 39.1175 |
Other (At-Grade) Single-Lane |
2008 | Functional Class: Rural ICD estimated from Google Maps linework. |
Bayfield,
CO La Plata Co. United States |
CR 501 / Bayfield Center Dr. (37.23393, -107.60191) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 41.1480 |
Other (At-Grade) Single-Lane |
2001 | Bayfield Center Drive is a new roadway. Completed Fall 2001. |
Astoria,
OR Clatsop Co. United States |
US 101 / Hwy 202 (Nehalem Highway) (46.18290, -123.86070) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 45.4797 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2002 | Opened September 2002. First multilane roundabout on Oregon state highway system. ICD estimated from Google Maps linework. |
Monroe,
WA Snohomish Co. United States |
SR 522 EB Ramps / 164th St. SE / Tester Rd. (47.84863, -122.00580) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways 60.9143 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2001 | Completed August 2001. This project won the Washington State APWA 2001 Project of the Award and the ASCE Seattle Section 2001 Outstanding Project Award. The Project is documented in the Compendium of Papers for 2000 ITE District 6 Annual Meeting, San Diego, CA. Reconfiguration of two intersections into a roundabout. Previously controlled by two-way stop ICD estimated from Google Maps linework. |
Federal Way,
WA King Co. United States |
Weyerhaeuser Way S / 33rd Pl S / 32nd Dr. S (47.29863, -122.29280) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 35.6385 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2000 | Opened April 2000. Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework. |
Lewisville,
NC Forsyth Co. United States |
Concord Church Rd. / US 421 SB Ramp / Williams Rd. (36.08978, -80.43072) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 29.9191 |
Freeway Ramps (Grade-Separated) Single-Lane |
2000 | Solved capacity problem. Previously controlled by one-way stop ICD estimated from Google Maps linework. |
Clemmons,
NC Forsyth Co. United States |
Fraternity Church Rd. / Hope Church Rd. (36.02653, -80.34301) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 28.0113 |
Other (At-Grade) Single-Lane |
1999 | Existing three-legged intersection converted to a four-legged intersection by adding new Clemmons Middle School driveway at the roundabout. Previously controlled by one-way stop Functional Class: Local ICD estimated from Google Maps linework. |
(unincorporated),
CO Douglas Co. United States |
Ridgegate Pkwy. / Ridgegate Cir. / Commons St. (39.53187, -104.88300) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 53.4267 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2006 | Part of transit-oriented development near future light-rail station ICD estimated from Google Maps linework. |
(unincorporated),
CO Douglas Co. United States |
Ridgegate Pkwy. / Ridgegate Cir. / Park Meadows Blvd. (39.52945, -104.87450) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 54.3498 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2006 | Part of transit-oriented development near future light-rail station ICD estimated from Google Maps linework. |
Phoenix,
AZ Maricopa Co. United States |
S. Melon Ln. / W. Country Place Blvd. (33.41839, -112.27850) |
Roundabout Existing |
All-Way Yield None |
2 Approaches 2 Driveways 23.9249 |
Other (At-Grade) Single-Lane |
2004 | Painted splitter islands. Functional Class: Local ICD estimated from Google Maps linework. |
Lawrence,
KS Douglas Co. United States |
Monterey Way / Peterson Rd. (38.98607, -95.28841) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 27.8505 |
Other (At-Grade) Single-Lane |
2005 | ICD estimated from Google Maps linework. |
Olathe,
KS Johnson Co. United States |
Sheridan Rd. / Rogers Rd. (38.87200, -94.79430) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 43.7027 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2000 | ICD estimated from Google Maps linework. |
Olathe,
KS Johnson Co. United States |
Sheridan Rd. / Ridgeview Rd. / Dennis Ave. (38.87270, -94.79730) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 22.3160 |
Other (At-Grade) Single-Lane |
2001 | Completed April 2001. ICD estimated from Google Maps linework. |
Olathe,
KS Johnson Co. United States |
Sheridan Rd. / Clairborne Rd. (38.87020, -94.79250) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 22.3168 |
Other (At-Grade) Single-Lane |
2001 | ICD estimated from Google Maps linework. |
Parkville,
MO Platte Co. United States |
MO 45 (Tom Watson Pkwy.) / National Dr. (39.21016, -94.70027) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 48.1210 |
Other (At-Grade) Single-Lane |
2000 | Functional Class: Arterial ICD estimated from Google Maps linework. |
Topeka,
KS Shawnee Co. United States |
Wanamaker Rd. / SW 6th Ave. (39.05662, -95.76134) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 54.7180 |
Other (At-Grade) Single-Lane |
2004 | Intersection expanded for new development. Previously T with 6th controlled by stop sign. Previously controlled by one-way stop ICD estimated from Google Maps linework. |
Topeka,
KS Shawnee Co. United States |
45th St. / Croco Rd. (38.98618, -95.61436) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 46.4174 |
Other (At-Grade) Single-Lane |
2008 | ICD estimated from Google Maps linework. |
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. |
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. |
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. |
Orion Township,
MI Oakland Co. United States |
Baldwin Rd. / Indianwood Rd. / Coats Rd. (42.78413, -83.31979) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 49.0862 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2004 | 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 |
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. |
Muskegon Township,
MI Muskegon Co. United States |
Chesapeake Dr. / Walker Rd. (43.23787, -86.17437) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 37.4138 |
Other (At-Grade) Single-Lane |
2003 | Year Completed estimated (2002-2004). ICD estimated from Google Maps linework. |
Southlake,
TX Tarrant Co. United States |
E. Continental Blvd. / S. Carroll Ave. (32.92622, -97.12830) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 39.6240 |
Other (At-Grade) Single-Lane |
2004 | Elementary school and city park located on NW corner. Asphalt construction. |
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. | |
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. |
Santa Fe,
NM Santa Fe Co. United States |
Zafarano Dr. / San Ignatio Rd. (35.64579, -106.01394) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 32.9988 |
Other (At-Grade) Single-Lane |
2006 | Southwest Santa Fe near Lowes Building Supply. ICD estimated from Google Maps linework. |
Santa Fe,
NM Santa Fe Co. United States |
Rufina St. / Zafarano Dr. (35.64938, -106.01476) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 1 Driveways 32.0268 |
Other (At-Grade) Single-Lane |
2007 | ICD estimated from Google Maps linework. |
Santa Fe,
NM Santa Fe Co. United States |
Governor Miles Rd. / (unnamed) (35.62729, -106.01980) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 26.2110 |
Other (At-Grade) Single-Lane |
2003 | South Santa Fe East of Cerrillos Road Functional Class: Minor Collector 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. |
Salt Lake,
HI Oahu Co. United States |
Ala Napunani St. / Likini St. (21.34596, -157.90180) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 24.4727 |
Other (At-Grade) Single-Lane |
2001 | Existing prior to 2006, includes driveway as 4th leg. Functional Class: Collector ICD estimated from Google Maps linework. |
Los Alamos,
NM Los Alamos Co. United States |
Diamond Dr. / San Ildefonso Rd. (35.89893, -106.29866) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 29.0241 |
Other (At-Grade) Single-Lane |
2008 | Redesign of existing traffic circle; previously controlled by 1 stop, 3 yields. Right-turn bypass lanes on west and east legs. Year Completed estimated (2006-2009). ICD estimated from Google Maps linework. |
Pearl Harbor Naval Base (Ford Island),
HI Oahu Co. United States |
Ford Island Blvd. / Saratoga Blvd. (21.36689, -157.95610) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 52.2752 |
Other (At-Grade) Single-Lane |
2006 | Existing prior to 2005. Relocated in 2005/2006. Functional Class: Collector ICD estimated from Google Maps linework. |
Colorado Springs,
CO El Paso Co. United States |
Research Pkwy. / (unknown #1) (38.95966, -104.72230) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 44.5774 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2006 | Has marked double-left turn at northbound entry using conventional arrows. Functional Class: Arterial ICD estimated from Google Maps linework. |
Colorado Springs,
CO El Paso Co. United States |
Research Pkwy. / (unknown #2) (38.96123, -104.71810) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 49.2198 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2006 | Functional Class: Arterial ICD estimated from Google Maps linework. |
Colorado Springs,
CO El Paso Co. United States |
Research Pkwy. / (unknown #3) (38.96204, -104.71430) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 50.1479 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2006 | Functional Class: Arterial ICD estimated from Google Maps linework. |
Colorado Springs,
CO El Paso Co. United States |
New Car Dr. / Duryea Dr. (38.93880, -104.72930) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 44.5906 |
Other (At-Grade) Single-Lane |
2003 | Serves retail shopping center. ICD estimated from Google Maps linework. |
Colorado Springs,
CO El Paso Co. United States |
New Car Dr. / Test Dr. (38.93844, -104.73440) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 43.6618 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2003 | Serves retail shopping center. ICD estimated from Google Maps linework. |
Colorado Springs,
CO El Paso Co. United States |
New Car Dr. / parking lot (38.93777, -104.73750) |
Other Existing |
Unknown None |
2 Approaches 0 Driveways 43.6622 |
Other (At-Grade) Single-Lane |
Serves retail shopping center. ICD estimated from Google Maps linework. | |
Lakewood,
CO Jefferson Co. United States |
S. Allison Pkwy. / W. Virginia Ave. (39.70705, -105.08390) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 1 Driveways 33.9964 |
Other (At-Grade) Single-Lane |
2000 | Functional Class: Local ICD estimated from Google Maps linework. |
Colorado Springs,
CO El Paso Co. United States |
Collegiate Dr. / Michael Dr. (38.89928, -104.78230) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 16.7308 |
Other (At-Grade) Single-Lane |
2001 | ICD estimated from Google Maps linework. |
Colorado Springs,
CO El Paso Co. United States |
Kettle Drum St. / Antelope Ridge Dr. (38.90673, -104.68530) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 30.6699 |
Other (At-Grade) Single-Lane |
2006 | ICD estimated from Google Maps linework. |
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. |
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. |
New York,
NY Manhattan Co. United States |
Columbus Circle (7th Ave. / Broadway / Central Park West / Central Park South) (40.76808, -73.98187) |
Signalized Roundabout/Circle Existing |
Signal None |
5 Approaches 0 Driveways 123.0168 |
Other (At-Grade) Multilane (3+ Lane) |
1905 | ICD estimated from Google Maps linework. |
Hagerstown,
MD Washington Co. United States |
Virginia Ave. / Memorial Blvd. / Prospect St. / Key St. (39.63728, -77.72873) |
Other Existing |
Other None |
0 Approaches 0 Driveways 36.7900 |
Other (At-Grade) Unknown |
ICD estimated from Google Maps linework. | |
Hagerstown,
MD Washington Co. United States |
E. Irvin Ave. / Mealey Pkwy. (39.65536, -77.70186) |
Other Existing |
All-Way Stop None |
0 Approaches 0 Driveways 37.6999 |
Other (At-Grade) Single-Lane |
ICD estimated from Google Maps linework. | |
Hagerstown,
MD Washington Co. United States |
E. Irvin Ave. / View St. / Valleybrook Dr. (39.65536, -77.70058) |
Other Existing |
All-Way Stop None |
0 Approaches 0 Driveways 31.2633 |
Other (At-Grade) Single-Lane |
ICD estimated from Google Maps linework. | |
Hagerstown,
MD Washington Co. United States |
E. Magnolia Ave. / Mealey Pkwy. (39.65762, -77.70140) |
Other Existing |
All-Way Stop None |
0 Approaches 0 Driveways 32.1818 |
Other (At-Grade) Single-Lane |
ICD estimated from Google Maps linework. | |
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. | |
(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) |
||
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. | |
Glenwood Springs,
CO Garfield Co. United States |
Mel Ray Rd. / I-70 WB Ramps / US 6 (39.56142, -107.36127) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways 44.1965 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) |
2006 | ICD estimated from Google Maps linework. |
Acoma Indian Reservation,
NM McKinley Co. United States |
Silver Dollar Rd. / Veterans Blvd. (35.07119, -107.56000) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 1 Driveways 43.0093 |
Other (At-Grade) Single-Lane |
2010 | Near Hospital, low ADT, series of 3 roundabouts. ICD estimated from Google Maps linework. |
Honolulu,
HI Oahu Co. United States |
Haloa Dr. / Ala Oli St. (21.36132, -157.92560) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 22.2456 |
Other (At-Grade) Single-Lane |
2005 | Constructed prior to 2006 in Foster Village subdivision. ICD estimated from Google Maps linework. |
Glenwood Springs,
CO Garfield Co. United States |
Mel Ray Rd. / I-70 EB Ramps / Midland Ave. / Riverine Rd. (39.56019, -107.36139) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 46.9595 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) |
2006 | 1 of 2 at Exit 114 on I-70, observed under construction in 2005. 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). |
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. |
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. |