22659 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
Columbia, MD
Howard Co.
United States
Golden Straw Ln. / Long Meadow Ct.
(39.21441, -76.81085)
Traffic Calming Circle
Existing
Other
None
3 Approaches
0 Driveways
99.0123
Other (At-Grade)
Single-Lane
2000 Yield control only on west leg. ICD estimated from Google Maps linework.
Ellicott City, MD
Howard Co.
United States
Rogers Ave / Old Frederick Road
(39.29904, -76.81308)
Roundabout
Existing
All-Way Yield
None
3 Approaches
1 Driveways
26.8027
Other (At-Grade)
Single-Lane
2004 ICD estimated from Google Maps linework.
Lake Arbor, MD
Prince George's Co.
United States
Lake Arbor Way / Golf Course Dr.
(38.90618, -76.81975)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
Owings Mills, MD
Baltimore Co.
United States
Upper Mill Dr. / Bluestem Ct. /Spring Willow Ct. / Bayline Cir.
(39.41253, -76.82032)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands.
Lake Arbor, MD
Prince George's Co.
United States
Lake Arbor Way / Fairlakes Pl
(38.90717, -76.82304)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
Muncy, PA
Lycoming Co.
United States
Lycoming Mall Circle
(41.24320, -76.82846)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
28.7372
Other (At-Grade)
Single-Lane
2009 ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States
Oakland Mills Rd. / Old Montgomery Rd.
(39.20788, -76.83157)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
38.1000
Other (At-Grade)
Single-Lane
2017
Ellicott City, MD
Howard Co.
United States
Columbia Rd. / Hemlock Cone Way / Kingscup Ct.
(39.24949, -76.83326)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
21.3360
Other (At-Grade)
Single-lane w/ Traversable Central Island
2019
Upper Marlboro, MD
Prince George's Co.
United States
Woodyard Rd. / Observatory Pl.
(38.82198, -76.83374)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
Parking along circulatory roadway.
Columbia, MD
Howard Co.
United States
Oakland Mills Rd. / MD 175 SB Ramps / (unknown)
(39.21308, -76.83456)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
36.5760
Freeway Ramps (Grade-Separated)
Single-Lane
2017 Year Completed estimated (2016-2017).
Hampstead, MD
Carroll Co.
United States
MD 88 / MD 833
(39.60434, -76.83682)
Roundabout
Existing
Unknown
Unknown
4 Approaches
0 Driveways
34.0470
Other (At-Grade)
Single-Lane
2004 ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States
Cradlerock Way / Homespun Dr.
(39.19095, -76.83787)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
22.2158
Other (At-Grade)
Single-Lane
2001 Completed May 21, 2001. Previously controlled by one-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Summerfield, MD
Prince George's Co.
United States
Saint Josephs Dr. / Grove Hurst Ln.
(38.91969, -76.84060)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
53.3400
Other (At-Grade)
Multilane (2 Lane)
2012
Laurel, MD
Howard Co.
United States
Weathered Stone Way / Boulder Ridge Rd. / Stone Lake Dr.
(39.13774, -76.84066)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
Ritchie, MD
Prince Georges Co.
United States
Ritchie-Marlboro Rd. / I-95 NB Ramps
(38.86824, -76.84158)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
67.0560
Freeway Ramps (Grade-Separated)
Multilane (3+ Lane)
2001 Opened initially with two lanes. Expanded from two lanes to three lanes in 2010. 21442
Laurel, MD
Howard Co.
United States
Whiskey Bottom Rd. / All Saints Rd.
(39.12478, -76.84257)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
25.9428
Other (At-Grade)
Single-Lane
2007 ICD estimated from Google Maps linework.
Hampstead, MD
Carroll Co.
United States
MD 30 (Hampstead Bypass) / Business MD 30 (Hanover Pike)
(39.58178, -76.84261)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
56.1498
Other (At-Grade)
Multilane (2 Lane)
2009 ICD estimated from Google Maps linework.
Upper Marlboro, MD
Prince George's Co.
United States
Central Park Dr. / Rock Spring Dr.
(38.83296, -76.84354)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
50.2920
Other (At-Grade)
Multilane (2 Lane)
2016
Laurel, MD
Howard Co.
United States
Boulder Ridge Rd. / Polished Pebble Way
(39.13864, -76.84358)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands.
Summerfield, MD
Prince George's Co.
United States
Ruby Lockhart Blvd. / Taj Ln.
(38.92163, -76.84438)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
48.7680
Other (At-Grade)
Multilane (2 Lane)
2011
Summerfield, MD
Prince George's Co.
United States
Campus Way / Geaton Park Pl.
(38.92577, -76.84451)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
48.7680
Other (At-Grade)
Multilane (2 Lane)
2011
Upper Marlboro, MD
Prince George's Co.
United States
Rock Spring Dr. / (unknown)
(38.83762, -76.84567)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
51.8160
Other (At-Grade)
Multilane (2 Lane)
2018 Year Completed estimated (2018-2019).
Laurel, MD
Howard Co.
United States
Stephens Rd. / Whiskey Bottom Rd.
(39.12704, -76.84608)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
29.6480
Other (At-Grade)
Single-Lane
2005 ICD estimated from Google Maps linework.
Glenarden, MD
Prince George's Co.
United States
Ruby Lockhart Blvd. / Campus Way
(38.92345, -76.84696)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
48.7680
Other (At-Grade)
Multilane (2 Lane)
2011
Ritchie, MD
Prince Georges Co.
United States
Ritchie-Marlboro Rd. / I-95 SB Ramps
(38.86894, -76.84738)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
770.9968
Freeway Ramps (Grade-Separated)
Multilane (3+ Lane)
2001 Opening initially with two lanes. Expanded from two lanes to three lanes in 2010. 21442
Columbia, MD
Howard Co.
United States
Stevens Forest Rd. / Farewell Rd. / Night Street Hill
(39.20114, -76.84781)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
27.4320
Other (At-Grade)
Single-lane w/ Traversable Central Island
2019
Glenarden, MD
Prince George's Co.
United States
Ruby Lockhart Blvd. / Evarts St. / Sir Michael Pl.
(38.92506, -76.84953)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
48.7680
Other (At-Grade)
Multilane (2 Lane)
2011 Double left-turn and double right-turn movements.
Southport, NY
Chemung Co.
United States
Pennsylvania Ave. / Rte 328 (SB Direction)
(42.04228, -76.85541)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
39.0266
Other (At-Grade)
Single-Lane
2016 Yield-controlled right-turn bypass lanes on north and west legs. Year Completed estimated (2013-2016). ICD estimated from Google Maps linework.
Spring Grove, PA
York Co.
United States
Rte. 116 (Hanover St.) / Roths Church Rd. / W. Hanover St.
(39.88301, -76.86363)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
47.6567
Other (At-Grade)
Single-Lane
2007 http://www.yorkdispatch.com/local/ci_6708523 ICD estimated from Google Maps linework.
Laurel, MD
Howard Co.
United States
Old Scaggsville Rd. / High Ridge Rd. / Running Deer Dr.
(39.11815, -76.86396)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
27.7985
Other (At-Grade)
Single-Lane
2015 ICD estimated from Google Maps linework.
Hampstead, MD
Carroll Co.
United States
MD 30 (Hampstead Bypass) / MD 482 (Hampstead Mexico Rd.)
(39.61108, -76.86457)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
53.3657
Other (At-Grade)
Multilane (2 Lane)
2009 ICD estimated from Google Maps linework.
Hampstead, MD
Carroll Co.
United States
MD-30 (Hampstead Bypass) / Business MD 30 (Hanover Pike)
(39.63466, -76.86675)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
49.6684
Other (At-Grade)
Multilane (2 Lane)
2009 ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States
Owen Brown Rd. / Martin Rd.
(39.19989, -76.86930)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
28.9560
Other (At-Grade)
Single-Lane
2004 Year Completed estimated (2002-2005).
Columbia, MD
Howard Co.
United States
Banneker Rd. / Cul-de-sac
(39.21141, -76.87041)
Traffic Calming Circle
Existing
Unknown
Unknown
3 Approaches
0 Driveways
17.5824
Other (At-Grade)
Single-Lane
Functional Class: Local ICD estimated from Google Maps linework.
Greenbelt, MD
Prince Georges Co.
United States
Hanover Pkwy. / Village Park Dr. / Schrom Hills Community Park entrance
(38.98378, -76.87333)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
19.4960
Other (At-Grade)
Single-Lane
1998 Year Completed estimated (1994-2001). ICD estimated from Google Maps linework.
Brandywine, MD
Prince George's Co.
United States
MD 373 / Accokeek Rd. / MD 5 (Branch Ave.) SB On-Ramp
(38.70076, -76.87599)
Roundabout
Existing
All-Way Yield
None
2 Approaches
0 Driveways
39.6240
Freeway Ramps (Grade-Separated)
Single-Lane
2019 MD 5 (Branch Ave.) was converted to limited access. https://www.thebaynet.com/articles/0419/newtrafficshiftstartsinbrandywineareathursday.html.
Southport, NY
Chemung Co.
United States
Rte 328 / Pennsylvania Ave.
(42.03433, -76.87601)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
48.7894
Other (At-Grade)
Single-Lane
2015 ICD estimated from Google Maps linework.
Columbia, MD
Howard Co.
United States
Harpers Farm Rd. / Campus Dr.
(39.21534, -76.88023)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
31.4614
Other (At-Grade)
Single-Lane
2003 Originally had 4 legs. ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States
Hopkins-Gorman Rd. / US 29 NB Ramps
(39.15846, -76.88660)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
59.2695
Other (At-Grade)
Multilane (2 Lane)
2002 ICD estimated from Google Maps linework.
Manchester, MD
Carroll Co.
United States
Fridinger Mill Rd. / Millie Way / Hallie Ave.
(39.67369, -76.89427)
Other
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
24.3840
Other (At-Grade)
Single-Lane
Painted splitter islands on three legs; no splitter island on fourth leg.
Scaggsville, MD
Howard Co.
United States
MD 216 / US 29 NB Ramps / Ice Crystal Dr.
(39.14476, -76.89799)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
53.7234
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2001 Series of 4 roundabouts. ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States
Ice Crystal Dr. / Birchtree Ln.
(39.14355, -76.89912)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
28.7147
Other (At-Grade)
Single-Lane
2003 ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States
Maple Lawn Blvd. / Tawes St.
(39.15364, -76.90125)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
34.2675
Other (At-Grade)
Multilane (2 Lane)
2006 ICD estimated from Google Maps linework.
West Friendship, MD
Howard Co.
United States
Castlebridge Rd. / Hunter's View Rd.
(39.24552, -76.90189)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
42.6720
Other (At-Grade)
Single-Lane
2006
Greenbelt, MD
Prince George's Co.
United States
Cherrywood Ln. / Greenbelt Metro Dr.
(39.00985, -76.90330)
Roundabout
Existing
All-Way Yield
Other
3 Approaches
0 Driveways
24.1290
Other (At-Grade)
Single-Lane
2012 Raised crosswalks. ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States
MD 216 / US 29 SB Ramps
(39.14562, -76.90418)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
53.7228
Freeway Ramps (Grade-Separated)
Multilane (2 Lane)
2001 Series of 4 roundabouts. ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States
Maple Lawn Blvd. / Iager Blvd.
(39.15816, -76.90440)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
33.3392
Other (At-Grade)
Multilane (2 Lane)
2005 ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States
MD 216 / Maple Lawn Blvd.
(39.14710, -76.90723)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
40.7543
Other (At-Grade)
Multilane (2 Lane)
2005 Series of 4 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States
Westside Blvd. / (parking lot)
(39.14952, -76.90856)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
31.4909
Other (At-Grade)
Single-Lane
2008 ICD estimated from Google Maps linework.
Scaggsville, MD
Howard Co.
United States
MD 216 / Westside Blvd.
(39.14796, -76.90977)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
41.6801
Other (At-Grade)
Multilane (2 Lane)
2009 Series of 4 roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Saint-Charles, MD
Charles Co.
United States
St Owen Ct. / Oyster Reef Pl. / Ottawa Park Pl.
(38.58026, -76.91047)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
36.5760
Other (At-Grade)
Single-Lane
2008
Laurel, MD
Howard Co.
United States
Arden Ct. / Waterside Ct. / Scholars Ln.
(39.13418, -76.91140)
Other
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands on two legs.
Camp Springs, MD
Prince George's Co.
United States
Capital Gateway Dr. / Auth Rd. / Old Soper Rd.
(38.82403, -76.91189)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
48.7680
Other (At-Grade)
Multilane (2 Lane)
1999 Unstriped circulatory roadway. Year Completed estimated (1995-2001).
Fulton, MD
Howard Co.
United States
S Maple Lawn Blvd. / Eugene Ave. / Charles Way
(39.14787, -76.91560)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
33.5280
Other (At-Grade)
Single-Lane
2017
Konterra, MD
Prince George's Co.
United States
Bentley Park Dr. / Parkgate Dr.
(39.09112, -76.91733)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
33.5280
Other (At-Grade)
Single-Lane
2015
Burtonsville, MD
Montgomery Co.
United States
Bentley Park Dr. / Saddle Creek Dr.
(39.09674, -76.91863)
Other
Existing
Unknown
Unknown
2 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands.
Columbia, MD
Howard Co.
United States
Trotter Rd. / South Wind Cir.
(39.20956, -76.91891)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
23.1353
Other (At-Grade)
Single-Lane
1997 Functional Class: Collector. Year Completed estimated (1993-2001). ICD estimated from Google Maps linework.
College Park, MD
Prince George's Co.
United States
River Rd. / University Research Ct. / Haig Dr.
(38.96838, -76.92358)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
39.0005
Other (At-Grade)
Multilane (2 Lane)
2013 Year Completed estimated (2012-2013). ICD estimated from Google Maps linework.
Polychrome Historic District, MD
Prince George's Co.
United States
IKEA Center Blvd. / Milestone Way
(39.02224, -76.92650)
Other
Existing
Other
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Multilane (2 Lane)
Mix of yield-controlled and uncontrolled entries.
Burtonsville, MD
Montgomery Co.
United States
Dustin Rd. / US 29 SB Offramp / Columbia Pike
(39.12256, -76.92656)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
43.5482
Freeway Ramps (Grade-Separated)
Single-Lane
2006 Fatal crash October 14, 2007.: http://www.fredericknewspost.com/sections/news/display.htm?StoryID=66411. 11861-05. ICD estimated from Google Maps linework.
Sykesville, MD
Carroll Co.
United States
Bennett Rd. / Monroe Ave.
(39.41306, -76.92967)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
26.7590
Other (At-Grade)
Single-Lane
2006 ICD estimated from Google Maps linework.
West Friendship, MD
Howard Co.
United States
Folly Quarter Rd. / Sheppard Ln. / Homewood Rd.
(39.24979, -76.93188)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
33.5280
Other (At-Grade)
Single-Lane
2004 Year Completed estimated (2002-2005).
Beltsville, MD
Prince George's Co.
United States
Sellman Rd. / Woodbine Rd.
(39.03418, -76.93680)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
45.7200
Other (At-Grade)
Single-Lane
2008 Intersection relocated south of previous TWSC intersection.
Mechanicsburg, PA
Cumberland Co.
United States
Lisburn Rd. / Rossmoyne Rd.
(40.19649, -76.94005)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
2019 https://www.wgal.com/article/lower-allen-township-roundabouts-open/29751390
College Park, MD
Prince George's Co.
United States
Campus Dr. / Regents Dr.
(38.98762, -76.94019)
Other
Existing
Other
Unknown
4 Approaches
0 Driveways
58.4848
Other (At-Grade)
Multilane (2 Lane)
Mix of Yield and Stop signs (3 Yields; 1 Stop) at approaches. ICD estimated from Google Maps linework.
Mechanicsburg, PA
Cumberland Co.
United States
Lisburn Rd. / Arcona Rd.
(40.19402, -76.94066)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
2019 https://www.wgal.com/article/lower-allen-township-roundabouts-open/29751390
Clarksville, MD
Howard Co.
United States
Preakness Circle Ln. / Watkins Bridge Ln.
(39.22880, -76.94308)
Roundabout
Existing
All-Way Yield
None
3 Approaches
1 Driveways
30.4800
Other (At-Grade)
Single-Lane
2010
Clarksville, MD
Howard Co.
United States
Running Fence Ln. / Preakness Circle Ln.
(39.22640, -76.94374)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
30.4800
Other (At-Grade)
Single-Lane
2010
Calverton, MD
Montgomery Co.
United States
Fairland Rd. / Galway Dr.
(39.06594, -76.94436)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
32.0040
Other (At-Grade)
Single-Lane
2008
Clarksville, MD
Howard Co.
United States
Watkins Bridge Ln. / Holly Creek Ln.
(39.22939, -76.94583)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
30.4800
Other (At-Grade)
Single-Lane
2010
Saint-Charles, MD
Charles Co.
United States
Smugglers Notch Ct. / Jacksonhole Pl.
(38.60188, -76.94805)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands.
College Park, MD
Prince George's Co.
United States
Campus Dr. / Mowatt Ln. / Valley Dr. (Alumni Dr.)
(38.98482, -76.94890)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
32.0037
Other (At-Grade)
Single-Lane
2004 Striped splitter island on north and east legs. Year Completed estimated (2002-2005).
Calverton, MD
Montgomery Co.
United States
Fairland Rd. / Marlow Farm Terr. / Musgrove Rd.
(39.07004, -76.95264)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
35.0520
Other (At-Grade)
Single-Lane
2008
Calverton, MD
Montgomery Co.
United States
Fairland Rd. / Brahms Ave. / (parking)
(39.07126, -76.95403)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
50.2920
Other (At-Grade)
Multilane (2 Lane)
2008
Clarksville, MD
Howard Co.
United States
Brighton Dam Rd. / Ten Oaks Rd.
(39.20491, -76.95455)
Roundabout
Existing
Unknown
Unknown
3 Approaches
0 Driveways
35.1680
Other (At-Grade)
Single-Lane
2008 ICD estimated from Google Maps linework.
Temple Hills, MD
Prince Georges Co.
United States
MD 637 (Naylor Rd.) / Good Hope Ave.
(38.84922, -76.95655)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
31.6248
Other (At-Grade)
Single-Lane
2001 ICD estimated from Google Maps linework.
Temple Hills, MD
Prince Georges Co.
United States
MD 637 (Naylor Rd.) / Oxon Run Dr.
(38.84986, -76.95789)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
34.4150
Other (At-Grade)
Single-Lane
2001 ICD estimated from Google Maps linework.
Mount Rainier, MD
Prince Georges Co.
United States
US 1 / 34th St. / Perry St.
(38.93647, -76.96074)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
30.6570
Other (At-Grade)
Multilane (2 Lane)
2001 Functional Class: Arterial ICD estimated from Google Maps linework.
Washington, DC
N/A Co.
United States
Randle Circle (Mass. Ave. / Minn. Ave. / K St.)
(38.87810, -76.96148)
Signalized Roundabout/Circle
Existing
Signal
None
7 Approaches
0 Driveways
118.0801
Other (At-Grade)
Multilane (2 Lane)
ICD estimated from Google Maps linework.
Sykesville, MD
Carroll Co.
United States
Smithfield Ave. / Warfield Ave.
(39.37673, -76.96410)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
47.0835
Other (At-Grade)
Multilane (2 Lane)
2007 Elliptical shape. ICD estimated from Google Maps linework.
Clarksville, MD
Howard Co.
United States
Northern Bell Way / Bee Frances Way / Catherine Close Rd.
(39.23232, -76.97091)
Other
Existing
Unknown
Unknown
3 Approaches
1 Driveways
0.0000
Other (At-Grade)
Single-Lane
Clarksville, MD
Howard Co.
United States
Linden Church Rd. / MD 32 NB Ramps
(39.22942, -76.97263)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
39.6240
Freeway Ramps (Grade-Separated)
Single-Lane
2013 Year Completed estimated (2011-2014).
Westminster, MD
Carroll Co.
United States
Market St. / Gorsuch Rd.
(39.57010, -76.97452)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
26.6987
Other (At-Grade)
Single-Lane
2005 Right-turn bypass lanes on SW and SE quadrants. ICD estimated from Google Maps linework.
Chillum, MD
Prince George's Co.
United States
Oglethorpe St. / 20th Ave.
(38.96225, -76.97495)
Other
Existing
Unknown
Unknown
2 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands.
Saint Charles, MD
Charles Co.
United States
Middletown Rd. / Billingsley Rd.
(38.60721, -76.97561)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
53.3400
Other (At-Grade)
Multilane (2 Lane)
2019 https://www.charlescountymd.gov/our-county/infrastructure/traffic-signal-projects/middletown-road-billingsley-road-roundabout
Clarksville, MD
Howard Co.
United States
Highland Rd. / Triadelphia Mill Rd.
(39.21551, -76.97698)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
36.5760
Other (At-Grade)
Single-Lane
2008
Washington, DC
N/A Co.
United States
New York Ave. / Montana Ave. / West Virginia Ave.
(38.91723, -76.97813)
Signalized Roundabout/Circle
Existing
Signal
None
0 Approaches
0 Driveways
65.9769
Other (At-Grade)
Unknown
ICD estimated from Google Maps linework.
Waldorf, MD
Charles Co.
United States
Davis Rd. / (School entrance)
(38.63609, -76.97873)
Roundabout
Existing
All-Way Yield
None
2 Approaches
1 Driveways
33.5852
Other (At-Grade)
Single-Lane
2005 Functional Class: Local ICD estimated from Google Maps linework.
Abbottstown, PA
Adams Co.
United States
King St. / Queen St.
(39.88671, -76.98461)
Other
Existing
All-Way Yield
Unknown
4 Approaches
4 Driveways
33.9077
Other (At-Grade)
Single-Lane
Parking along circulatory roadway. ICD estimated from Google Maps linework.
Washington, DC
N/A Co.
United States
Pennsylvania Ave. / Potomac Ave.
(38.88034, -76.98549)
Signalized Roundabout/Circle
Existing
Signal
None
0 Approaches
0 Driveways
81.8167
Other (At-Grade)
Unknown
ICD estimated from Google Maps linework.
West Friendship, MD
Howard Co.
United States
Burntwoods Rd. / Andrea Dr. / MD 32 NB Ramps
(39.27321, -76.98627)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
35.1338
Freeway Ramps (Grade-Separated)
Single-Lane
2008 ICD estimated from Google Maps linework.
Glenelg, MD
Howard Co.
United States
Ten Oaks Rd. / Pfefferkorn Rd. / MD 32 SB Ramps
(39.27615, -76.98641)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
32.3587
Freeway Ramps (Grade-Separated)
Single-Lane
2008 ICD estimated from Google Maps linework.
Glenelg, MD
Howard Co.
United States
Burntwoods Rd. / Ten Oaks Rd.
(39.27315, -76.98805)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
37.9075
Other (At-Grade)
Single-Lane
2008 ICD estimated from Google Maps linework.
Washington, DC
City of Washington Co.
United States
Brentwood Rd NE / Bryant Rd NE / 13th St NE
(38.92115, -76.98915)
Roundabout
Existing
All-Way Yield
None
4 Approaches
1 Driveways
39.0264
Other (At-Grade)
Multilane (2 Lane)
2010 First true roundabout in District of Columbia ICD estimated from Google Maps linework.
Upper Allen Township, PA
Cumberland Co.
United States
W Lisburn Rd. / Grantham Rd.
(40.16298, -76.99018)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
1 Driveways
16.4290
Other (At-Grade)
Single-Lane
2018 https://www.abc27.com/news/top-video/new-traffic-circle-opens-in-upper-allen_20181003215307/1495637846 ICD estimated from Google Maps linework.
Glenelg, MD
Howard Co.
United States
Pfefferkorn Rd. / Fox Stream Way / Old Rover Rd.
(39.29067, -76.99226)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
28.9560
Other (At-Grade)
Single-Lane
2005 Year Completed estimated (2004-2005).
Providence Forge, VA
New Kent Co.
United States
Brickshire Dr. / Royal Ln.
(37.48050, -76.99323)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
35.0520
Other (At-Grade)
Single-Lane
2000 Year Completed estimated (1994-2003).
Williamsport, PA
Lycoming Co.
United States
Via Bella St. / Mulberry St.
(41.24000, -76.99792)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
32.3309
Other (At-Grade)
Single-Lane
2009 ICD estimated from Google Maps linework.
Williamsport, PA
Lycoming Co.
United States
Via Bella St. / Court St.
(41.23876, -77.00027)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
58.3764
Other (At-Grade)
Single-Lane
2009 ICD estimated from Google Maps linework.
Miraflores, Lima
Province of Lima
Peru
Ovalo Los Cabitos
(-12.12880, -77.00104)
Other
Existing
Uncontrolled
Unknown
6 Approaches
0 Driveways
Freeway Ramps (Grade-Separated)
Multilane (3+ Lane)