City,
State County Country |
Intersection (Lat, Lng) |
Type Status |
Control Type / Other Control Type | Approaches / Driveways / ICD (m) |
Functional Class / LaneType |
Year Completed | Comments |
---|---|---|---|---|---|---|---|
Oakton,
VA Fairfax Co. United States |
Nutley St. SW / I-66 WB Exit Ramp (38.87982, -77.26743) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 0.0000 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max) |
2023 | Replaces full cloverleaf interchange. https://outside.transform66.org/about_the_project/project_sections/nutley.asp |
Clarksburg,
MD Montgomery Co. United States |
Granite Rock Rd. / Grand Elm St. (39.24126, -77.26647) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
No splitter islands. | |
Oakton,
VA Fairfax Co. United States |
Nutley St. SW / I-66 EB Exit Ramp (38.87714, -77.26629) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 0.0000 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max) |
2023 | Replaced full cloverleaf interchange. https://outside.transform66.org/about_the_project/project_sections/nutley.asp |
Vienna,
VA Fairfax Co. United States |
Park St. SE / Locust St. SE (38.90205, -77.26091) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 14.8712 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2018 | Year Completed estimated (2016-2018). ICD estimated from Google Maps linework. |
Germantown,
MD Montgomery Co. United States |
Milestone Manor Ln. / Royal Crown Dr. (39.20518, -77.25877) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
||
(unincorporated),
MD Montgomery Co. United States |
Travilah Rd. / Turkey Foot Rd. / Hanson Farm Dr. (39.07993, -77.25560) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 33.5280 |
Other (At-Grade) Single-Lane |
2020 | Painted splitter islands. Year Completed estimated (2019-2020). |
Clarksburg,
MD Montgomery Co. United States |
Little Seneca Pkwy. / Snowden Farm Pkwy. (39.22989, -77.25280) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 28.6795 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2012 | Year Completed estimated (2011-2013). ICD estimated from Google Maps linework. |
Germantown,
MD Montgomery Co. United States |
Milestone Manor Ln. / Emerald Dr. (39.20479, -77.25262) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
||
Germantown,
MD Montgomery Co. United States |
Milestone Manor Ln. / Stardrift Dr. (39.20560, -77.25039) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
||
Germantown,
MD Montgomery Co. United States |
Milestone Manor Ln. / Manor View Cir. / Milestone Manor Ct. (39.20854, -77.24868) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
||
Clarksburg,
MD Montgomery Co. United States |
Snowden Farm Pkwy. / Winding Woods Way (39.22604, -77.24727) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 40.7086 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2012 | Year Completed estimated (2011-2013). ICD estimated from Google Maps linework. |
Canandaigua,
NY Ontario Co. United States |
CR 10 / CR 4 (42.90187, -77.24570) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 33.2451 |
Other (At-Grade) Single-Lane |
2013 | ICD estimated from Google Maps linework. |
Germantown,
MD Montgomery Co. United States |
Observation Dr. / Goldenrod Ln. (39.18419, -77.24566) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 45.7200 |
Other (At-Grade) Multilane (2 Lane, 2x2 max) |
2013 | Year Completed estimated (2012-2014). |
Canandaigua,
NY Ontario Co. United States |
CR 10 / CR 46 (42.88665, -77.24563) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 31.5031 |
Other (At-Grade) Single-Lane |
2013 | ICD estimated from Google Maps linework. |
Germantown,
MD Montgomery Co. United States |
Summer Oak Dr. / Summer Oak Ct. (39.16467, -77.24384) |
Other Existing |
Unknown Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
No splitter islands on two legs. | |
Clarksburg,
MD Montgomery Co. United States |
Little Seneca Pkwy. / Meadow Mist Rd. (39.23154, -77.24309) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 30.5290 |
Other (At-Grade) Single-Lane |
2011 | 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). |
Woodbridge,
VA Prince William Co. United States |
Belmont Bay Dr. / Palisades St. (38.65612, -77.23753) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 35.4412 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2000 | ICD estimated from Google Maps linework. |
Woodbridge,
VA Prince William Co. United States |
Belmont Bay Dr. / Course View Way (38.65403, -77.23640) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 25.1826 |
Other (At-Grade) Single-Lane |
2000 | ICD estimated from Google Maps linework. |
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). |
Travilah,
MD Montgomery Co. United States |
Marwood Hill Dr. / Rivers Bend Ln. (39.03022, -77.23432) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
Gettysburg,
PA Adams Co. United States |
Lincoln Square (Chamberburg St. / York St. / Carlisle St. / Baltimore St.) (39.83092, -77.23112) |
Other Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 31.1838 |
Other (At-Grade) Single-Lane |
Diagonal parking around circulatory roadway; pedestrian access to center island; no splitter islands. 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. |
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 |
Parkview Ave. / Uptown St. (39.15334, -77.22619) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 36.5760 |
Other (At-Grade) Single-Lane |
2012 | Right-turn-only lane on northwest leg. Year Completed estimated (2011-2012). |
Germantown,
MD Montgomery Co. United States |
Germantown Rd. / Watkins Mill Rd. / Blunt Rd. (39.19058, -77.22492) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 36.5760 |
Other (At-Grade) Single-Lane |
1999 | Right-turn bypass lane on north leg. Year Completed estimated (1993-2005). |
Gaithersburg,
MD Montgomery Co. United States |
Upshire Circle (39.11353, -77.22397) |
Other Existing |
Unknown Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
||
Potomac,
MD Montgomery Co. United States |
Brickyard Rd. / Brent Rd. (38.99900, -77.22362) |
Traffic Calming Circle Existing |
One-Way/Two-Way Stop Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
Potomac,
MD Montgomery Co. United States |
10600 Morning Field Dr. / Sunny Brooke Ln. / Sunny Brooke Pl. (39.07423, -77.21561) |
Other Existing |
Unknown Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
||
Potomac,
MD Montgomery Co. United States |
Brickyard Rd. / Hackamore Dr. (38.98567, -77.21274) |
Traffic Calming Circle Existing |
One-Way/Two-Way Stop Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
Potomac,
MD Montgomery Co. United States |
Brickyard Rd. / Horseshoe Ln. (38.99291, -77.21195) |
Traffic Calming Circle Existing |
One-Way/Two-Way Stop Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
Gaithersburg,
MD Montgomery Co. United States |
Perry Pkwy. / (parking) (39.14899, -77.21048) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 47.2440 |
Other (At-Grade) Multilane (2 Lane, 2x1 max) |
2004 | Year Completed estimated (2002-2005). |
Rockville,
MD Montgomery Co. United States |
Valley Dr. / Aqua Ln. (39.07945, -77.20575) |
Other Existing |
Unknown Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
Gaithersburg,
MD Montgomery Co. United States |
Washingtonian Blvd. / Washington Blvd. (39.11773, -77.20314) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 36.5760 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1998 | Year Completed estimated (1993-2002). |
Gaithersburg,
MD Montgomery Co. United States |
Washingtonian Blvd. / Rio Blvd. (39.11678, -77.20122) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 36.5760 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
1998 | Year Completed estimated (1993-2002). |
North Potomac,
MD Montgomery Co. United States |
Bald Cypress Dr. / Willow Tree Dr. / Cherrydale Dr. (39.08158, -77.20120) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
Annandale,
VA Fairfax Co. United States |
Ravensworth Rd. / Jayhawk St. / Fountain Head Dr. (38.82630, -77.19993) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 22.8600 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2018 | Modular, rapid-install roundabout. |
Potomac,
MD Montgomery Co. United States |
Broad Green Dr. / Clagett Farm Dr. (39.04566, -77.19669) |
Other Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
Carlisle,
PA Cumberland Co. United States |
N College St. / B St. (40.20962, -77.19535) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2022 | https://www.youtube.com/watch?v=KwvSjWacVwI |
Carlisle,
PA Cumberland Co. United States |
B St. / Fairground Ave. (40.20914, -77.18946) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2022 | https://www.facebook.com/carlislepa/videos/b-street-and-fairground-avenue-roundabout/587170292764586/ |
Gaithersburg,
MD Montgomery Co. United States |
Victory Farm Dr. / Girard St. (39.14648, -77.18493) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 25.9348 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2006 | Year Completed estimated (2005-2006). ICD estimated from Google Maps linework. |
Picton,
ON Prince Edward Canada |
Loyalist Pkwy. / Sandy Hook Rd. (43.99449, -77.17838) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 40.3828 |
Other (At-Grade) Single-Lane |
2009 | This was the first highway roundabout in Ontario. Constructed in 2009. https://www.auto123.com/en/news/ontarios-first-roundabout-intersection-opens-near-picton/5652/ ICD estimated from Google Maps linework. |
King Farm,
MD Montgomery Co. United States |
Pleasant Circle (39.11623, -77.17518) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
Pedestrian access to central island. | |
Potomac,
MD Montgomery Co. United States |
Larkmeade Ln. / Bells Ridge Dr. (39.03483, -77.16775) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
||
Rockville,
MD Montgomery Co. United States |
Henderson Circle (39.08800, -77.16702) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
Pedestrian access to central island. | |
Shermans Dale,
PA Perry Co. United States |
SR 34-SR 850 (Spring Rd.) / SR 34 (Spring Rd.) / SR 850 (Valley Rd.) / Pisgah State Rd. (40.31955, -77.16513) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 33.5280 |
Other (At-Grade) Single-Lane |
2021 | |
Redland,
MD Montgomery Co. United States |
Columbus Ave. / Gramercy Blvd. (39.12362, -77.16494) |
Other Existing |
All-Way Stop Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
Potomac,
MD Montgomery Co. United States |
Old Seven Locks Rd. / Quarry Manor Terrace (38.99371, -77.16028) |
Other Existing |
Unknown Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
No splitter islands. | |
Taneytown,
MD Carroll Co. United States |
MD 140 / MD 832 / Antrim Blvd. (39.64809, -77.15468) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 44.1960 |
Other (At-Grade) Single-Lane |
1996 | Completed August 1996. Curbs set for double lane, striped for single outer circulating lane. |
Cooksville,
MD Howard Co. United States |
Long Corner Rd. / Penn Shop Rd. (39.33938, -77.15284) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 28.9560 |
Other (At-Grade) Single-Lane |
2005 | Year Completed estimated (1988-2005). |
Potomac Heights,
MD Charles Co. United States |
Cedar Ln. / Glymont Rd. / Greenwood Pl. (38.60764, -77.14063) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
||
Callao,
Constitutional Province of Callao Constitutional Province of Callao Peru |
Plaza Garabaldi (-12.05221, -77.13904) |
Other Existing |
Unknown Unknown |
5 Approaches 0 Driveways |
Other (At-Grade) Multilane (3+ Lane) |
||
Callao,
Callao Callao Peru |
Calle Comandante Juan Fanning [Avenida República de Argentina / Avenida República de Panamá / Avenida Contralmirante Mora] (-12.05156, -77.13409) |
Other Existing |
Uncontrolled None |
4 Approaches 0 Driveways |
Other (At-Grade) Multilane (3+ Lane) |
||
Callao,
Constitutional Province of Callao Constitutional Province of Callao Peru |
Plaza Guardia Chalaca (-12.06804, -77.13347) |
Other Existing |
Unknown Unknown |
7 Approaches 0 Driveways |
Other (At-Grade) Unknown |
||
(unincorporated),
PA Perry Co. United States |
SR 34 / Sunnyside Dr. / Mountain Rd. (40.29453, -77.13262) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 43.7256 |
Other (At-Grade) Single-Lane |
2014 | Designed to be expanded to two-lane roundabout. ICD estimated from Google Maps linework. |
Gaithersburg,
MD Montgomery Co. United States |
Hoover Farm Dr. / Holland Meadow Ln. (39.18129, -77.13125) |
Other Existing |
Unknown Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
No splitter islands. | |
Gaithersburg,
MD Montgomery Co. United States |
Hoover Farm Dr. / Brass Bucket Ct. (39.17775, -77.13018) |
Other Existing |
Unknown Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
No splitter islands. | |
Callao,
Constitutional Province of Callao Constitutional Province of Callao Peru |
Ovalo Centenario (-12.05075, -77.12598) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Unknown |
||
Rose Hill,
VA Fairfax Co. United States |
Park Terrace / Edgewood Dr. (38.78241, -77.12587) |
Other Existing |
Unknown Unknown |
4 Approaches 4 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
Callao,
Constitutional Province of Callao Constitutional Province of Callao Peru |
Ovalo Cantolao (-11.99706, -77.12553) |
Other Existing |
Unknown Unknown |
4 Approaches 1 Driveways |
Other (At-Grade) Multilane (3+ Lane) |
Pedestrian access to central island. | |
New Bern,
NC Craven Co. United States |
W New Bern Pkwy. / Clock Dr. (35.12991, -77.12486) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
No splitter islands on side street. | |
Derwood,
MD Montgomery Co. United States |
Coppelia Dr. / Toboggan Ln. (39.13566, -77.11938) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
No splitter islands. | |
La Perla,
Constitutional Province of Callao Constitutional Province of Callao Peru |
Republic of Venezuela Ave. / Avenida La Marina Ramps (-12.06525, -77.11925) |
Unknown Existing |
Unknown Unknown |
6 Approaches 0 Driveways |
Freeway Ramps (Grade-Separated) Multilane (3+ Lane) |
||
Bethesda,
MD Montgomery Co. United States |
Bradmoor Dr. / Roosevelt St. (38.99427, -77.11925) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 21.3360 |
Other (At-Grade) Single-Lane |
2017 | Year Completed estimated (2016-2018). |
Alexandria,
VA Alexandria City United States |
Cameron Station Blvd. / Brenman Park Dr. (38.80933, -77.11861) |
Other Existing |
All-Way Stop Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Multilane (2 Lane, 2x2 max) |
Pedestrian access to central island. | |
Quinton,
VA New Kent Co. United States |
SR 249 (New Kent Hwy.) / SR 612 (Tunstall Rd.-Airport Rd.) (37.53278, -77.11546) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 32.2017 |
Other (At-Grade) Single-Lane |
2017 | ICD estimated from Google Maps linework. |
Derwood,
MD Montgomery Co. United States |
Achille Ln. / Heartwood Dr. (39.12925, -77.11543) |
Other Existing |
Unknown Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
No splitter islands. | |
Corning,
NY Steuben Co. United States |
Robert Dann Blvd. / Aurene Dr. / Creekside Dr. (42.16506, -77.11484) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 40.7216 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2003 | Access permits for research and development plant. ICD estimated from Google Maps linework. |
Derwood,
MD Montgomery Co. United States |
Heartwood Dr. (39.13239, -77.11434) |
Other Existing |
Unknown Unknown |
2 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
||
Erwin,
NY Steuben Co. United States |
Robert Dann Dr. / Science Center Rd. (42.15936, -77.11082) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 53.3400 |
Other (At-Grade) Multilane (2 Lane, 2x1 max) |
2001 | Add-lane right-turn bypass lane on west leg. |
Bethesda,
MD Montgomery Co. United States |
Tournay Rd. / Spangler Ave. (38.94811, -77.11053) |
Other Existing |
Unknown Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
No splitter islands. | |
Bethesda,
MD Montgomery Co. United States |
Boxwood Rd. / Spangler Ave. (38.94781, -77.10888) |
Other Existing |
Unknown Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
No splitter islands. | |
New Bern,
NC Craven Co. United States |
Elizabeth Ave. (35.12585, -77.10821) |
Other Existing |
Unknown Unknown |
2 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
Washington,
DC United States |
Westmoreland Circle (Massachusetts Ave. NW / Dalecarlia Dr. / Western Ave. NW / Butterworth Pl. NW) (38.94892, -77.10097) |
Rotary Existing |
All-Way Yield None |
6 Approaches 0 Driveways 100.5840 |
Other (At-Grade) Multilane (3+ Lane) |
On boundary of DC and Maryland (Western Ave. is the boundary). | |
Olney,
MD Montgomery Co. United States |
Wickham Rd. / Olney Mill Rd. / Dunsford Dr. (39.16071, -77.09596) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
No splitter islands on three legs. | |
Arlington,
VA Arlington Co. United States |
Key Blvd. / N Fillmore St. (38.89146, -77.09415) |
Traffic Calming Circle Existing |
One-Way/Two-Way Stop Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
Olney,
MD Montgomery Co. United States |
Wickham Rd. / Broom Dr. (39.15708, -77.09362) |
Other Existing |
Unknown Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
No splitter islands. | |
Arlington,
VA Arlington Co. United States |
Key Blvd. / N Danville St. (38.89224, -77.09208) |
Traffic Calming Circle Existing |
All-Way Stop Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
Olney,
MD Montgomery Co. United States |
Brightwood Rd. / Winding Oak Dr. / Weston Pl. (39.16065, -77.09120) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
No splitter islands. | |
Arlington,
VA Arlington Co. United States |
Key Blvd. / N Cleveland St. (38.89253, -77.09099) |
Traffic Calming Circle Existing |
One-Way/Two-Way Stop Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
||
Arlington,
VA Arlington Co. United States |
N Danville St. / Franklin Rd. / N Bryan St. (38.89067, -77.09073) |
Other Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
Parking in circulatory roadway. | |
Arlington,
VA Arlington Co. United States |
36th St. S / S Stafford St. (38.82894, -77.08800) |
Other Existing |
All-Way Yield Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
Parking within circulatory roadway. | |
San Martín de Porres,
Lima Province of Lima Peru |
Avenida Naranjal / Avenue Canta Callao (-11.97372, -77.08786) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Multilane (3+ Lane) |
||
Mount Vernon,
VA Fairfax Co. United States |
Mount Vernon Memorial Hwy (38.71132, -77.08612) |
Other Existing |
Unknown Unknown |
2 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
Parking along circulatory roadway. | |
Washington,
DC N/A Co. United States |
Ward Circle (Mass. Ave. / Nebraska Ave.) (38.93792, -77.08590) |
Signalized Roundabout/Circle Existing |
Signal None |
0 Approaches 0 Driveways 80.8214 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
ICD estimated from Google Maps linework. | |
Talleysville,
VA United States |
Emmaus Church Rd. / (unknown) (37.50685, -77.08140) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 41.6873 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2008 | Right-turn only lanes on all approaches with only one circulating lane. ICD estimated from Google Maps linework. |
Chevy Chase,
MD Montgomery Co. United States |
Rosemary Circle [Rosemary St. / Hillcrest Pl. / Stanford St.] (38.97789, -77.08055) |
Other Existing |
All-Way Stop Unknown |
5 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
Parking along circulatory roadway. | |
Olney,
MD Montgomery Co. United States |
Fox Valley Dr. / Hillcroft Dr. (39.12441, -77.07962) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
No splitter islands. | |
Washington,
DC N/A Co. United States |
Tenley Circle (Nebraska Ave. / Wisconsin Ave. / Yuma St.) (38.94628, -77.07875) |
Signalized Roundabout/Circle Existing |
Signal None |
0 Approaches 0 Driveways 73.3809 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
ICD estimated from Google Maps linework. | |
Talleysville,
VA United States |
Emmaus Church Rd. / (unknown) (37.51449, -77.07822) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 43.5777 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2008 | Right-turn only lanes on all approaches with only one circulating lane. ICD estimated from Google Maps linework. |
Lima,
Lima Province of Lima Peru |
Avenida Universitaria / Vía Expresa Línea Amarilla (-12.03577, -77.07769) |
Signalized Roundabout/Circle Existing |
Signal Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Multilane (3+ Lane) |
||
Washington,
DC United States |
Chevy Chase Circle (Connecticut Ave. NW / Western Ave. NW / Chevy Chase Pkwy. NW / Grafton St.) (38.96761, -77.07716) |
Rotary Existing |
All-Way Yield None |
7 Approaches 0 Driveways 109.7280 |
Other (At-Grade) Multilane (3+ Lane) |
On boundary between DC and Maryland (Western Ave. is the boundary). Pedestrian access to central island. | |
Talleysville,
VA United States |
New Kent Hwy. / Old Church Rd. (37.52467, -77.07560) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 37.8885 |
Other (At-Grade) Single-Lane |
2008 | Two free flowing right-turn bypass lanes ICD estimated from Google Maps linework. |
Olney,
MD Montgomery Co. United States |
Martins Dairy Cir. / Gooseneck Terrace (39.13176, -77.07439) |
Other Existing |
Unknown Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
||
Olney,
MD Montgomery Co. United States |
Martins Dairy Cir. / Old Baltimore Rd. (39.13345, -77.07382) |
Other Existing |
All-Way Yield Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
Painted splitter islands. | |
Lisbon,
MD Howard Co. United States |
MD 94 / MD 144 (39.33700, -77.07360) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 30.4800 |
Other (At-Grade) Single-Lane |
1993 | First roundabout in Maryland. Built initially as temporary, made permanent after one month. |
Alexandria,
VA Alexandria City United States |
Beverley Circle: Old Dominion Blvd. / Chalfonte Dr. (38.83602, -77.07233) |
Other Existing |
All-Way Stop Unknown |
3 Approaches 2 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
Parking within circulatory roadway. No splitter islands. | |
Los Olivos,
Lima Province of Lima Peru |
Ovalo Infantas (-11.94556, -77.07104) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways |
Freeway Ramps (Grade-Separated) Multilane (3+ Lane) |
||
Alexandria,
VA Alexandria City United States |
Washington Circle: Circle Hill Rd. / Beverley Dr. / Canyon Dr. (38.83533, -77.07047) |
Other Existing |
Other Unknown |
5 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
Pedestrian access to central island. No splitter islands. Mix of stop, yield, and uncontrolled entries. | |
Lisbon,
MD Howard Co. United States |
MD 94 / Old Frederick Rd. (Lisbon North) (39.34810, -77.06930) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 26.7839 |
Other (At-Grade) Single-Lane |
1999 | ICD estimated from Google Maps linework. |