28735 Results

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City, State
County
Country
Intersection
(Lat, Lng)
Type
Status
Control Type / Other Control Type Approaches / Driveways / ICD (m) Functional Class /
LaneType
Year Completed Comments
New Bern, NC
Craven Co.
United States
Sellhorn Blvd. / Inge Ct.
(35.05745, -77.03385)
Other
Existing
Unknown
Unknown
3 Approaches
1 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands
Washington, DC

United States
Main Dr. NW / 14th St. NW
(38.97376, -77.03425)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
New Bern, NC
Craven Co.
United States
Broad St. / Front St.
(35.10776, -77.03563)
Roundabout
Existing
Unknown
Unknown
3 Approaches
0 Driveways
27.3573
Other (At-Grade)
Single-Lane
2001 Part of enhancement project. ICD estimated from Google Maps linework.
Miraflores, Lima
Province of Lima
Peru
Ovalo Bolognesi
(-12.12325, -77.03583)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Pedestrian access to central island; parking along circulatory roadway.
Washington, DC
N/A Co.
United States
Scott Circle (Mass. Ave. / Rhode Isl. Ave. / 16th St. / N St.)
(38.90725, -77.03654)
Signalized Roundabout/Circle
Existing
Signal
None
6 Approaches
0 Driveways
51.1161
Other (At-Grade)
Multilane (2 Lane, unspecified)
ICD estimated from Google Maps linework.
Miraflores, Lima
Province of Lima
Peru
Ovalo Gutierrez
(-12.11035, -77.03693)
Other
Existing
Unknown
Unknown
5 Approaches
0 Driveways
Other (At-Grade)
Multilane (3+ Lane)
Wheaton-Glenmont, MD
Montgomery Co.
United States
Poplar Run Dr. / Night Sky Dr. / Moonlight Trail Dr.
(39.07862, -77.03729)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands.
Miraflores, Lima
Province of Lima
Peru
Ovalo Julio Ramon Ribeyro
(-12.11893, -77.04005)
Other
Existing
Unknown
Unknown
8 Approaches
0 Driveways
Other (At-Grade)
Unknown
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
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).