|
City,
State County Country |
Intersection (Lat, Lng) |
Type Status |
Control Type / Other Control Type | Approaches / Driveways / ICD (m) |
Functional Class / LaneType |
Year Completed | Comments |
|---|---|---|---|---|---|---|---|
|
Carabayllo,
Lima Province of Lima Peru |
Avenida Huarangal / Avenida Periurbana (-11.82782, -77.04032) |
Unknown Existing |
Unknown Unknown |
3 Approaches 0 Driveways |
Other (At-Grade) Unknown |
||
|
Courtland,
VA Southampton Co. United States |
US 58 Business (Main St. [Jerusalem Rd.]) / US 58 WB Ramps (36.69722, -77.04116) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 1 Driveways 36.5760 |
Freeway Ramps (Grade-Separated) Single-Lane |
2018 | https://www.virginiadot.org/newsroom/hampton_roads/2018/major_milestone_met_months129525.asp |
|
Franklin,
VA Southampton Co. United States |
Old Bridge Rd. / US 58 EB Ramps (36.69339, -77.04150) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 36.5760 |
Freeway Ramps (Grade-Separated) Single-Lane |
2018 | https://www.virginiadot.org/newsroom/hampton_roads/2018/major_milestone_met_months129525.asp |
|
Miraflores,
Lima Province of Lima Peru |
Plaza Centro America (-12.11892, -77.04277) |
Other Existing |
Unknown Unknown |
6 Approaches 0 Driveways |
Other (At-Grade) Unknown |
||
|
Lima,
Lima Province of Lima Peru |
Plaza dos de Mayo (-12.04641, -77.04281) |
Signalized Roundabout/Circle Existing |
Signal Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Multilane (3+ Lane) |
||
|
Lima,
Lima Province of Lima Peru |
Plaza Ramón Castilla (-12.04341, -77.04302) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Multilane (3+ Lane) |
||
|
Phelps,
NY Ontario Co. United States |
Fort Hill Rd. / McIvor Rd. / CR 23 (42.91672, -77.04341) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other (At-Grade) Single-Lane |
2019 | https://www.fltimes.com/news/ontario-county-s-newest-roundabout-opens-in-phelps/article_3fe5e190-49db-5f3b-a42f-7da6c3073a08.html . |
|
Washington,
DC N/A Co. United States |
Dupont Circle (Mass Ave. / Conn. Ave. / New Hampshire Ave.19th St. / P St.) (38.90965, -77.04344) |
Signalized Roundabout/Circle Existing |
Signal None |
10 Approaches 0 Driveways 137.5441 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
ICD estimated from Google Maps linework. | |
|
Jesús María,
Lima Province of Lima Peru |
Avenida Cuba (-12.07515, -77.04350) |
Other Existing |
Unknown Unknown |
8 Approaches 0 Driveways |
Other (At-Grade) Multilane (3+ Lane) |
||
|
Jesús María,
Lima Province of Lima Peru |
Parque Santa Cruz (-12.07259, -77.04507) |
Other Existing |
Unknown Unknown |
6 Approaches 0 Driveways |
Other (At-Grade) Unknown |
||
|
Breña,
Lima Province of Lima Peru |
Parque General Pedro Silva (-12.06179, -77.04826) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Unknown |
||
|
Miraflores,
Lima Province of Lima Peru |
Avenida del Ejercito / Avenida Hipólito Unanue (-12.11308, -77.04851) |
Unknown Existing |
Unknown Unknown |
6 Approaches 0 Driveways |
Other (At-Grade) Multilane (2 Lane, unspecified) |
||
|
Emerald Isle,
NC Carteret Co. United States |
Emerald Dr. / Plantation Dr. (34.66452, -77.04878) |
Other Existing |
Other Unknown |
4 Approaches 0 Driveways 28.4876 |
Other (At-Grade) Single-Lane |
ICD estimated from Google Maps linework. | |
|
Olney,
MD Montgomery Co. United States |
Old Baltimore Rd. / Bishops Castle Dr. (39.14878, -77.04958) |
Traffic Calming Circle Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 0.0000 |
Unknown Single-Lane |
2019 | Painted splitter islands on major street; no splitter islands on side street. |
|
Washington,
DC N/A Co. United States |
Washington Circle (Penn. Ave. / New Hampshire Ave. / 23rd St. / K St.) (38.90252, -77.05010) |
Signalized Roundabout/Circle Existing |
Signal None |
8 Approaches 0 Driveways 119.8984 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
ICD estimated from Google Maps linework. | |
|
Washington,
DC N/A Co. United States |
Sheridan Circle (Mass Ave. / 23rd St. / R St.) (38.91214, -77.05065) |
Rotary Existing |
Uncontrolled None |
0 Approaches 0 Driveways 69.6989 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
Functional Class: Arterial ICD estimated from Google Maps linework. | |
|
Emerald Isle,
NC Carteret Co. United States |
NC 58 / Mallard Dr. / Emerald Landing Dr. (34.66104, -77.05268) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways 42.2420 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2018 | Developer project. ICD estimated from Google Maps linework. |
|
Wheaton,
MD Montgomery Co. United States |
Park Vista Dr. / Wintergate Dr. / Longmeade Crossing Dr. (39.10755, -77.05340) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 30.4800 |
Other (At-Grade) Single-Lane |
2020 | Painted splitter islands added 2020. |
|
New Oxford,
PA Adams Co. United States |
Center Square (Lincoln Way / Hanover St. / Carlilse St.) (39.86388, -77.05586) |
Other Existing |
All-Way Yield None |
4 Approaches 0 Driveways 73.3384 |
Other (At-Grade) Single-Lane |
Converted town square: pedestrian access to central island; parking around circle. ICD estimated from Google Maps linework. | |
|
Hampton,
PA Adams Co. United States |
Carlisle Pike (SR 94) / SR 394 / Stoney Point Rd. (39.92941, -77.05803) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2020 | https://www.ydr.com/story/news/2020/07/16/traffic-alert-12-road-projects-to-know-about-in-south-central-pennsylvania-penndot-roundabout/5359493002/ |
|
Tyendinaga,
ON Hastings Canada |
CR 10 (Deseronto Rd.) / CR 24 (Belleville Rd.) / CR 1 (44.23557, -77.05927) |
Roundabout Unknown |
All-Way Yield None |
4 Approaches 0 Driveways |
Other (At-Grade) Single-Lane |
2021 | |
|
Arlington,
VA Arlington Co. United States |
Memorial Dr. / Arlington Memorial Bridge (38.88573, -77.06004) |
Rotary Existing |
Unknown Unknown |
0 Approaches 0 Driveways 114.3488 |
Other (At-Grade) Unknown |
ICD estimated from Google Maps linework. | |
|
Eisenhower East,
VA Alexandria City United States |
Eisenhower Ave. / Holland Ln (38.80044, -77.06079) |
Other Existing |
Unknown Unknown |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
0 | |
|
Breña,
Lima Province of Lima Peru |
Plaza de la Bandera (-12.06746, -77.06112) |
Other Existing |
Unknown Unknown |
5 Approaches 0 Driveways |
Other (At-Grade) Unknown |
||
|
Alexandria,
VA Alexandria City United States |
Hickory St. / Kennedy St. (38.83080, -77.06213) |
Traffic Calming Circle Existing |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2024 | Central island is painted only and ringed with mountable dividers. https://www.alexandriava.gov/transportation-planning/project/hickory-street-and-kennedy-street-neighborhood-mini-roundabout |
|
Mount Vernon,
VA Fairfax Co. United States |
Fort Willard Circle (38.78275, -77.06601) |
Other Existing |
Unknown Unknown |
6 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
||
|
Los Olivos,
Lima Province of Lima Peru |
Ovalo Naranjal (-11.97737, -77.06605) |
Other Unknown |
Unknown Unknown |
4 Approaches 0 Driveways |
Freeway Ramps (Grade-Separated) Multilane (3+ Lane) |
||
|
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. |
|
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. | |
|
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 |
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. | |
|
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. |
|
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. | |
|
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 |
||
|
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. |
|
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. | |
|
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) |
||
|
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. |
|
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. | |
|
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. | |
|
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. | |
|
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. |
|
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. | |
|
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. | |
|
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) |
||
|
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. | |
|
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 |
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 |
||
|
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 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 |
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 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. / 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. | |
|
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). | |
|
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 |
||
|
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. | |
|
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. | |
|
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. |
|
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 |
||
|
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 |
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. | |
|
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. |
|
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. | |
|
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). |
|
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. | |
|
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. | |
|
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. | |
|
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 Centenario (-12.05075, -77.12598) |
Other Existing |
Unknown Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Unknown |
||
|
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. | |
|
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. | |
|
(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. |
|
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 |
||
|
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 Garabaldi (-12.05221, -77.13904) |
Other Existing |
Unknown Unknown |
5 Approaches 0 Driveways |
Other (At-Grade) Multilane (3+ Lane) |
||
|
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 |
||
|
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). |
|
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. |
|
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. | |
|
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 |
||
|
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 | |
|
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. | |
|
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 |
||
|
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. | |
|
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. |
|
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. |
|
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/ |
|
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 |
|
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 |
||
|
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. |
|
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 |
||
|
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). |
|
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). |
|
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 |
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). |
|
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 |
||
|
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 |
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. / 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 |