|
City,
State County Country |
Intersection (Lat, Lng) |
Type Status |
Control Type / Other Control Type | Approaches / Driveways / ICD (m) |
Functional Class / LaneType |
Year Completed | Comments |
|---|---|---|---|---|---|---|---|
|
Boulder,
CO Boulder Co. United States |
Pearl St. / Mid-Block (40.01501, -105.29390) |
Traffic Calming Circle Existing |
Unknown None |
2 Approaches 0 Driveways 16.4647 |
Other (At-Grade) Single-Lane |
Facilitates U-turns at west end of Pearl Street ICD estimated from Google Maps linework. | |
|
Boulder,
CO Boulder Co. United States |
Pine St. / 15th St. (40.02072, -105.27670) |
Traffic Calming Circle Existing |
Unknown None |
4 Approaches 0 Driveways 16.4634 |
Other (At-Grade) Single-Lane |
ICD estimated from Google Maps linework. | |
|
Boulder,
CO Boulder Co. United States |
Pine St. / 17th St. (40.02126, -105.27410) |
Traffic Calming Circle Existing |
Unknown None |
4 Approaches 0 Driveways 10.9755 |
Other (At-Grade) Single-Lane |
ICD estimated from Google Maps linework. | |
|
Aspen,
CO Pitkin Co. United States |
SR 82 / Maroon Creek Rd. / Castle Creek Rd. (39.19557, -106.84025) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 60.9600 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2000 | |
|
Gatineau,
QC Outaouais Region Canada |
Blvd. St.-Joseph (Rte. 105) / Rue Montcalm (45.43146, -75.73314) |
Roundabout Existing |
All-Way Yield Pedestrian Signal (red-yellow-green to drivers) |
3 Approaches 0 Driveways 23.4678 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2003 | Opened December 9, 2003. Functional Class: Arterial ICD estimated from Google Maps linework. |
|
Denver,
CO Denver Co. United States |
E. Lowry Blvd. / N. Uinta Way (39.71986, -104.89070) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 50.5258 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1998 | ICD estimated from Google Maps linework. |
|
Denver,
CO Denver Co. United States |
E. Lowry Blvd. / Yosemite St. (39.72373, -104.88400) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 51.4416 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1998 | ICD estimated from Google Maps linework. |
|
Frisco,
CO Summit Co. United States |
SH 9 / I-70 WB Ramps (39.59339, -106.09700) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways 34.0524 |
Freeway Ramps (Grade-Separated) Single-Lane |
2000 | Highway ref. pt. 70-202.35. ICD estimated from Google Maps linework. |
|
Calabasas,
CA Los Angeles Co. United States |
Parkway Calabasas / Camino Portal (34.13878, -118.65890) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 30.6442 |
Other (At-Grade) Single-Lane |
2001 | Documented in 2002 ITE District 6 Annual Meeting Compendium of Papers. Originally double-lane roundabout. Parkway Calabasas approaches tapered to single-lane in advance of entry by striping. Functional Class: Arterial ICD estimated from Google Maps linework. |
|
Golden,
CO Jefferson Co. United States |
S. Golden Rd. / Johnson Rd. / 16th St. (39.74207, -105.20060) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 37.6526 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1998 | Documented in 2002 ITE District 6 Annual Meeting Compendium of Papers. Serves retail shopping corridor. Functional Class: Arterial ICD estimated from Google Maps linework. |
|
Golden,
CO Jefferson Co. United States |
S. Golden Rd. / Lunnonhaus Dr. (39.74062, -105.19840) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 32.0040 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1998 | Documented in 2002 ITE District 6 Annual Meeting Compendium of Papers. Serves retail shopping corridor. Small two-lane roundabout but with nontraversable central island. |
|
Golden,
CO Jefferson Co. United States |
S. Golden Rd. / Utah St. (39.73919, -105.19620) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 23.8782 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1998 | Documented in 2002 ITE District 6 Annual Meeting Compendium of Papers. Serves retail shopping corridor. Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework. |
|
Golden,
CO Jefferson Co. United States |
S. Golden Rd. / Ulysses St. (39.73771, -105.19390) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 38.5734 |
Other (At-Grade) Single-Lane |
1998 | Documented in 2002 ITE District 6 Annual Meeting Compendium of Papers. Serves retail shopping corridor. Main entrance to shopping center. Functional Class: Arterial 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. |
|
Seattle,
WA King Co. United States |
26th Ave. S / S. Judkins St. (47.59209, -122.29900) |
Traffic Calming Circle Existing |
Unknown Unknown |
0 Approaches 0 Driveways 20.9420 |
Other (At-Grade) Unknown |
2006 | ICD estimated from Google Maps linework. |
|
Tulsa,
OK Tulsa Co. United States |
E. Admiral Pl. / Mingo Rd. (36.16057, -95.86876) |
Rotary Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 114.7468 |
Other (At-Grade) Single-Lane |
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. |
|
Seattle,
WA King Co. United States |
24th Ave. S / S. Norman St. (47.59301, -122.30120) |
Traffic Calming Circle Existing |
Unknown Unknown |
0 Approaches 0 Driveways 41.0778 |
Other (At-Grade) Unknown |
2006 | ICD estimated from Google Maps linework. |
|
Phoenix,
AZ Maricopa Co. United States |
South 20th Drive. / (none) (33.37556, -112.10290) |
Traffic Calming Circle Existing |
Unknown Unknown |
2 Approaches 0 Driveways 16.9552 |
Other (At-Grade) Single-Lane |
2003 | Neighborhood traffic calming. ICD estimated from Google Maps linework. |
|
Las Vegas (Summerlin),
NV Clark Co. United States |
Town Center Dr. / Canyon Run Dr. / Banburry Cross Dr. (36.18080, -115.31370) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 54.8640 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1995 | Completed March 1995. Modified 2003 to reduce from three-lane entries to two-lane entries with add-lane right-turn bypasses on all legs. 21442 |
|
Las Vegas (Summerlin),
NV Clark Co. United States |
Desert Primrose Ln. / Desert Marigold Ln. / Blue Willow Ln. (36.14060, -115.32090) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 40.5093 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1999 | Functional Class: Collector ICD estimated from Google Maps linework. |
|
Las Vegas (Summerlin),
NV Clark Co. United States |
Desert Primrose Ln. / Spotted Leaf Ln. / Pavillion Center Dr. (36.14070, -115.33120) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 41.4737 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1999 | Functional Class: Collector ICD estimated from Google Maps linework. |
|
Las Vegas (Summerlin),
NV Clark Co. United States |
Havenwood Ave. / Spotted Leaf Ln. / Golden Willow (36.13300, -115.33040) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 37.6194 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1999 | Functional Class: Collector ICD estimated from Google Maps linework. |
|
Las Vegas (Summerlin),
NV Clark Co. United States |
Havenwood Ave. / Desert Marigold Ln. / Navajo Willow Ln. (36.13360, -115.32110) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 39.5483 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2000 | Functional Class: Collector. Year Completed estimated (1999-2002). ICD estimated from Google Maps linework. |
|
Henderson (Seven Hills),
NV Clark Co. United States |
Grand Hills Dr. / Rio Secoo Golf Club (35.97713, -115.11100) |
Other Existing |
Unknown Unknown |
3 Approaches 0 Driveways 74.4214 |
Other (At-Grade) Single-Lane |
1998 | Functional Class: Collector ICD estimated from Google Maps linework. |
|
Topeka,
KS Shawnee Co. United States |
SW 29th St. / Urish Rd. (39.01446, -95.78102) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 48.7680 |
Other (At-Grade) Single-Lane |
2001 | Completed July 2001 as single-lane roundabout. Retail shopping center on SW corner. Converted to partial double-lane roundabout 2010. 21442 |
|
Gordonsville,
VA Orange Co. United States |
James Madison Hwy / N. Main St. / Spotswood Trl. (38.14261, -78.18947) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 31.9366 |
Other (At-Grade) Single-Lane |
ICD estimated from Google Maps linework. | |
|
Howard,
WI Brown Co. United States |
Lineville Rd. (CTH M) / Cardinal Ln. (CTH EB) (44.59090, -88.08430) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 29.7684 |
Other (At-Grade) Single-Lane |
1999 | Roundabout is near Forest Glen Elementary School, Lineville Intermediate School, and Bay Port High School. Completed October 1999. http://www.co.brown.wi.us/Planning/roundabouts.html Functional Class: Arterial ICD estimated from Google Maps linework. |
|
Howard,
WI Brown Co. United States |
Lineville Rd. (CTH M) / Rockwell Ln. (44.59080, -88.08880) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 28.0674 |
Other (At-Grade) Single-Lane |
1999 | Roundabout is adjacent to Lineville Intermediate School, Middle School, and High School. School did not allow pedestrian crossings prior to roundabout due to unsafe conditions, now allows crossings using crossing guard. Completed October 1999. http://www.co.brown.wi.us/Planning/roundabouts.html Previously controlled by one-way stop Functional Class: Arterial ICD estimated from Google Maps linework. |
|
Scottsdale,
AZ Maricopa Co. United States |
Princess Blvd. / Princess Dr. (33.64804, -111.91795) |
Other Existing |
All-Way Yield None |
3 Approaches 0 Driveways 64.0077 |
Other (At-Grade) Multilane (2 Lane, 2x1 max) |
1986 | Painted spiral next to central island. Completed 1986. Reconfigured in 2007? 21442 |
|
Salt Lake City,
UT Salt Lake Co. United States |
South Campus Dr. / Center Campus Dr. (40.75968, -111.84490) |
Roundabout Existing |
All-Way Yield At-grade Rail Crossing Signals/Gates (controlling all approaches) |
3 Approaches 0 Driveways 39.6240 |
Other (At-Grade) Single-Lane |
2003 | Light rail runs through center of roundabout. Gates on both circulatory roadway and on east and west approaches. |
|
Alpine,
UT Utah Co. United States |
Canyon Crest Rd. / 200 West (40.45012, -111.78150) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 36.3540 |
Other (At-Grade) Single-Lane |
2004 | ICD estimated from Google Maps linework. |
|
Green Bay,
WI Brown Co. United States |
Mason St. (STH 32-STH 54) / S. Taylor St. (44.52414, -88.07916) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 43.4266 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2012 | Series of 3 roundabouts. Opened August 31, 2012. ICD estimated from Google Maps linework. |
|
Green Bay,
WI Brown Co. United States |
Shawano Ave. (STH 29) / Taylor St. (44.53461, -88.07319) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 49.3783 |
Other (At-Grade) Multilane (3+ Lane) |
2011 | Opened September 2011. ICD estimated from Google Maps linework. |
|
Draper,
UT Salt Lake Co. United States |
1300 E / Pioneer Rd. (40.52518, -111.85340) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 37.2210 |
Other (At-Grade) Multilane (2 Lane, 2x1 max) |
2001 | ICD estimated from Google Maps linework. Constructed as single-lane in 2001. Updated to 2x1 in 2023. https://www.draperjournal.com/2023/09/07/464782/roundabout-reopens-early-with-revised-traffic-pattern |
|
Orem,
UT Utah Co. United States |
1200 South / 400 West (40.27531, -111.70480) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways 30.9811 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
|
Draper,
UT Salt Lake Co. United States |
300 East / 12200 South (40.52863, -111.88180) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 37.2193 |
Other (At-Grade) Single-Lane |
2001 | ICD estimated from Google Maps linework. |
|
Provo,
UT Utah Co. United States |
200 West (Freedom Blvd.) / 920 South (40.22177, -111.66230) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 25.5341 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
|
Provo,
UT Utah Co. United States |
550 West / 1950 North (40.26043, -111.66600) |
Other Existing |
Unknown Unknown |
5 Approaches 0 Driveways 21.8738 |
Other (At-Grade) Single-Lane |
Within parking lot; not fully developed as roundabout. Functional Class: Local ICD estimated from Google Maps linework. | |
|
Provo,
UT Utah Co. United States |
3700 North / 300 West (40.28282, -111.66310) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 28.2444 |
Other (At-Grade) Single-Lane |
2001 | ICD estimated from Google Maps linework. |
|
Fort Worth,
TX Tarrant Co. United States |
Bluebonnet Circle [W Biddson St. / Park Ridge Blvd. / S University Dr.] (32.69902, -97.36044) |
Other Existing |
Unknown Unknown |
6 Approaches 0 Driveways 141.7320 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1929 | . |
|
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. |
|
Claremont,
CA Los Angeles Co. United States |
Indian Hill Blvd. / Bonita St. (34.09662, -117.71930) |
Roundabout Removed |
All-Way Yield Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
2000 | Temporary roundabout installed in August 1999, removed in April 2000. Strong public negative opinion cited as reason for removal. (Westernite, July-August 2000, pp. 2-3) |
|
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. |
|
Buffalo,
NY Erie Co. United States |
Gates Circle (Delaware Ave. / Lafayette Ave.) (42.92054, -78.86776) |
Other Existing |
Unknown Unknown |
5 Approaches 0 Driveways 66.4699 |
Other (At-Grade) Unknown |
2002 | Modified in 2002 to incorporate roundabout principles. ICD estimated from Google Maps linework. 21442 |
|
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. |
|
Orange,
CA Orange Co. United States |
Chapman Ave. / Glassell St. (33.78788, -117.85310) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 70.4752 |
Other (At-Grade) Single-Lane |
Old school traffic circle, pedestrian park in the middle, cars park along the sides. 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. |
|
Park City,
UT Summit Co. United States |
Rte 224 (Deer Valley Drive) / Heber Avenue / Marsac Avenue (40.64572, -111.49500) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways 46.2161 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2000 | See: www.Roundaboutsusa.com Information as reported in Salt Lake Tribune article: http://www.sltrib.com/2000/Sep/09142000/utah/22072.htm Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework. |
|
Maplewood,
MN Ramsey Co. United States |
Kennard St. / Legacy Pkwy. (45.03317, -93.03062) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 37.1373 |
Other (At-Grade) Single-Lane |
2004 | Site has RT pavement arrows at entrance line. ICD estimated from Google Maps linework. |
|
Phoenix,
AZ Maricopa Co. United States |
Aviano Way / (unknown) (33.68941, -111.99350) |
Rotary Existing |
All-Way Yield None |
0 Approaches 0 Driveways 79.4999 |
Other (At-Grade) Single-Lane |
Mini-roundabout. Completed 2005. ICD estimated from Google Maps linework. | |
|
Ridgeland,
MS Madison Co. United States |
Old Agency Rd / Highland Colony Pkwy (32.43125, -90.14893) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways 47.3786 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2004 | Planned in association with interchange improvements at I-55/Old Agency Rd. Functional Class: Collector 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. |
|
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 |
||
|
Edmonton,
AB Edmonton Capital Region Canada |
107th Ave. / 142nd St. NW (53.55102, -113.56580) |
Rotary Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 81.5992 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
ICD estimated from Google Maps linework. | |
|
Edmonton,
AB Edmonton Capital Region Canada |
Connors Rd. NW / 85th St. NW / 83rd St. NW / 90th Ave. NW (53.52501, -113.45750) |
Rotary Removed |
Unknown Unknown |
5 Approaches 0 Driveways 25.5598 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2019 | Rotary converted to signalized intersection in 2019 to make way for LRT. https://edmontonjournal.com/news/local-news/love-it-or-hate-it-bonnie-doon-traffic-circle-to-be-removed-in-favour-of-four-way-intersection/ |
|
Seattle,
WA King Co. United States |
16th Ave. E. / E. Spring St. (47.61154, -122.31150) |
Traffic Calming Circle Existing |
Unknown Unknown |
4 Approaches 0 Driveways 8.8568 |
Other (At-Grade) Single-Lane |
ICD estimated from Google Maps linework. | |
|
Seattle,
WA King Co. United States |
15th Ave. E. / E. Spring St. (47.61155, -122.31280) |
Traffic Calming Circle Existing |
Unknown Unknown |
4 Approaches 0 Driveways 44.2838 |
Other (At-Grade) Single-Lane |
ICD estimated from Google Maps linework. | |
|
Seattle,
WA King Co. United States |
16th Ave. E. / E. Marion St. (47.61037, -122.31150) |
Traffic Calming Circle Existing |
Unknown Unknown |
4 Approaches 0 Driveways 9.6621 |
Other (At-Grade) Single-Lane |
ICD estimated from Google Maps linework. | |
|
Seattle,
WA King Co. United States |
17th Ave. E. / E. Marion St. (47.61036, -122.31020) |
Traffic Calming Circle Existing |
Unknown Unknown |
4 Approaches 0 Driveways 6.4414 |
Other (At-Grade) Single-Lane |
ICD estimated from Google Maps linework. | |
|
Seattle,
WA King Co. United States |
Ashworth Ave. N / N 137th St. (47.72868, -122.33970) |
Traffic Calming Circle Existing |
Unknown Unknown |
4 Approaches 0 Driveways 14.4604 |
Other (At-Grade) Single-Lane |
ICD estimated from Google Maps linework. | |
|
Seattle,
WA King Co. United States |
Wallingford Ave. N / N 137th St. (47.72868, -122.33690) |
Traffic Calming Circle Existing |
Unknown Unknown |
4 Approaches 0 Driveways 12.8537 |
Other (At-Grade) Single-Lane |
ICD estimated from Google Maps linework. | |
|
Hollymead,
VA Albemarle Co. United States |
Ashwood Blvd. / Stratford Glen / Chimney Rd. (38.10672, -78.43133) |
Roundabout Existing |
Unknown Unknown |
4 Approaches 0 Driveways 22.5545 |
Other (At-Grade) Single-Lane |
2001 | ICD estimated from Google Maps linework. |
|
Bedford,
VA Bedford Co. United States |
London Park Dr. / Meade Rd. / Meadow Down Dr. (37.30592, -79.33699) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 30.4800 |
Other (At-Grade) Single-Lane |
2006 | https://www.wdbj7.com/2020/07/28/meade-road-extension-to-be-completed-soon/ |
|
Chesterfield Court House,
VA Chesterfield Co. United States |
Mimms Dr. / Government Center Pkwy. (37.37778, -77.50466) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 53.1481 |
Other (At-Grade) Single-Lane |
2003 | Right-turn-only lane on north leg. ICD estimated from Google Maps linework. |
|
Hollymead,
VA Albemarle Co. United States |
Timberwood Blvd. / Conner Blvd. (38.13065, -78.44083) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 32.8813 |
Other (At-Grade) Single-Lane |
2005 | ICD estimated from Google Maps linework. |
|
Hollymead,
VA Albemarle Co. United States |
Timberwood Blvd. / Grand Forks Blvd. (38.13111, -78.44283) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 93.9459 |
Other (At-Grade) Single-Lane |
2006 | ICD estimated from Google Maps linework. |
|
Hollymead,
VA Albemarle Co. United States |
Powell Creek Dr. / Timberwood Pkwy. / Shady Brook Trl. (38.11509, -78.43404) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 25.3710 |
Other (At-Grade) Single-Lane |
2004 | ICD estimated from Google Maps linework. |
|
Winchester,
VA Frederick Co. United States |
Airport Rd. / Victory Rd. (39.13417, -78.13571) |
Roundabout Existing |
All-Way Yield None |
2 Approaches 0 Driveways 32.4242 |
Other (At-Grade) Single-Lane |
2004 | Year Completed estimated (2003-2005). ICD estimated from Google Maps linework. |
|
Short Pump,
VA Goochland Co. United States |
Capitol One Dr. / Tuckahoe Creek Pkwy. access (37.63382, -77.67312) |
Roundabout Existing |
Unknown Unknown |
3 Approaches 0 Driveways 38.7788 |
Other (At-Grade) Single-Lane |
2004 | ICD estimated from Google Maps linework. |
|
Short Pump,
VA Goochland Co. United States |
Capitol One Dr. / VA 288 Ramps (37.63224, -77.67027) |
Roundabout Existing |
Unknown Unknown |
3 Approaches 0 Driveways 53.9131 |
Other (At-Grade) Single-Lane |
2004 | ICD estimated from Google Maps linework. |
|
Linton Hall,
VA Prince William Co. United States |
Tartan Hills Pkwy (VA 3254) / Broadsword Dr. (VA 3256) (38.74232, -77.58066) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 27.9462 |
Other (At-Grade) Single-Lane |
2003 | ICD estimated from Google Maps linework. |
|
Linton Hall,
VA Prince William Co. United States |
Braemar Pkwy. (VA 3080) / Iona Sound Dr. (VA 3089) (38.73510, -77.56889) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 46.5816 |
Other (At-Grade) Single-Lane |
1999 | Year Completed estimated (1994-2002). ICD estimated from Google Maps linework. |