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
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).
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.
Quartu Sant’Elena, Sardinia
Cagliari
Italy
SP17 / SP17ter / Viale Europa / Via Flume
(39.23079, 9.22086)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, 2x2 max)
Blue Ash, OH
Hamilton Co.
United States
Plainfield Rd. / Peppermill Ln. / Reed-Hartman Hwy.
(39.23083, -84.39482)
Roundabout
Existing
All-Way Yield
Rectangular Rapid Flashing Beacon (RRFB)
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Multilane (2 Lane, 2x1 max)
2023 RRFB on all four legs. https://www.blueash.com/departments/public_works/hunt_plainfield.php
Kansas City, MO
Clay Co.
United States
NE Flintlock Rd / NE 76th St
(39.23094, -94.47007)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
57.3581
Other (At-Grade)
Multilane (2 Lane, unspecified)
2013 ICD estimated from Google Maps linework.
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.
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
Grass Valley, CA
Nevada Co.
United States
Olympia Park Cir. / (parking lot)
(39.23248, -121.03766)
Roundabout
Existing
All-Way Yield
None
2 Approaches
1 Driveways
22.8600
Other (At-Grade)
Single-lane w/ Traversable Central Island
2014 All paint, no raised islands. Opened November 2014. Previously, Olympia Park Circle made a gentle 90-degree curve. Traffic entering from stop-controlled driveway had trouble making left turn as they had to proceed 60 feet to reach the safety of centerline without knowing if approaching vehicle on their left was going to enter the driveway or curve left in front of them. Now about 50% of driveway exits cheat across the central island, but it works just fine. After six years with no raised islands, a central island was built on 3 Nov 2020: 20 feet in diameter, 4 inches high, designed for asphalt but built with PCC.
Grass Valley, CA
Nevada Co.
United States
Sierra College Dr. / Litton Dr. / Robert Ross Way
(39.23445, -121.05200)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
32.3780
Other (At-Grade)
Single-Lane
2003 ICD estimated from Google Maps linework.
Kings Beach, CA
Placer Co.
United States
N Lake Blvd. / Coon St.
(39.23589, -120.02207)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
29.6021
Other (At-Grade)
Single-Lane
2014 ICD estimated from Google Maps linework.
Clarksburg, MD
Montgomery Co.
United States
Saint Clair Rd. / Timber Creek Ln. / Brewers Tavern Terrace / (unknown)
(39.23680, -77.27531)
Other
Existing
Unknown
Unknown
5 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands.
Kings Beach, CA
Placer Co.
United States
N Lake Blvd. / Bear Ave. / Brook Ave. / (beach parking)
(39.23681, -120.02465)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
24.0514
Other (At-Grade)
Single-Lane
2014 ICD estimated from Google Maps linework.
Blue Ash, OH
Hamilton Co.
United States
Malsbary Rd. / Alliance Rd.
(39.23916, -84.38188)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
34.2258
Other (At-Grade)
Single-Lane
2017 http://www.blueash.com/departments/public_works/roundabout_safety.php ICD estimated from Google Maps linework.
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.
Cagliari, Sardinia
Cagliari
Italy
Via Edward Jenner / (connector to SS131dir)
(39.24238, 9.11694)
Other
Existing
All-Way Stop
Unknown
3 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, unspecified)
Kansas City, MO
Clay Co.
United States
NE 82nd Terr. / N Booth Ave.
(39.24250, -94.47752)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
53.3400
Other (At-Grade)
Multilane (2 Lane, unspecified)
2008 South leg stubbed.
Blue Ash, OH
Hamilton Co.
United States
Plainfield Rd. / Parkview Dr.
(39.24335, -84.39561)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
18.4993
Other (At-Grade)
Single-Lane
2018 http://www.blueash.com/departments/public_works/roundabout_safety.php ICD estimated from Google Maps linework.
Liberty, MO
Clay Co.
United States
S Stewart Rd. / (parking)
(39.24344, -94.45337)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
33.5277
Other (At-Grade)
Single-Lane
2016 Add-lane right-turn bypass lane on south leg.
Dundalk, MD
Baltimore Co.
United States
Dundalk Ave. / Sollers Point Rd.
(39.24534, -76.50786)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
24.9734
Other (At-Grade)
Single-Lane
2007 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
Ellicott City, MD
Howard Co.
United States
Nightingale Ct. / Academy Rd.
(39.24564, -76.79297)
Other
Existing
Unknown
Unknown
2 Approaches
0 Driveways
0.0000
Other (At-Grade)
Unknown
Kansas City, MO
Clay Co.
United States
N Booth Ave. / NE Shoal Creek Valley Dr. / Commercial Dr.
(39.24626, -94.47674)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
44.1960
Other (At-Grade)
Multilane (2 Lane, 2x1 max)
2020 Yield-controlled right-turn bypass lane on west leg. Year Completed estimated (2020-20210.
Liberty, MO
Clay Co.
United States
College St. / N Blue Jay Dr.
(39.24628, -94.44898)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
36.5760
Other (At-Grade)
Single-Lane
2005
Liberty, MO
Clay Co.
United States
N Stewart Rd. / College St. / Conistor Ln. / (parking)
(39.24629, -94.45100)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
36.5760
Other (At-Grade)
Single-Lane
2002 Year Completed estimated (1997-2003).
Kansas City, MO
Clay Co.
United States
NE Shoal Creek Valley Dr. / (unknown)
(39.24673, -94.47459)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
36.5760
Other (At-Grade)
Single-Lane
2020
Quartucciu, Sardinia
Cagliari
Italy
Via delle Serre / Via Segre
(39.24684, 9.16501)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, 2x1 max)
Kansas City, MO
Clay Co.
United States
N Sycamore Ave. / N 85th Terr. / Shoal Creek Valley Dr.
(39.24733, -94.48586)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
60.9600
Other (At-Grade)
Single-Lane
2002 No truck apron. Year Completed estimated (1997-2003).
Montgomery, OH
Hamilton Co.
United States
Pfeiffer Rd. / Deerfield Rd.
(39.24866, -84.35092)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
2023 https://www.facebook.com/story.php/?story_fbid=602452425250045&id=100064558789263
Catonsville, MD
Baltimore Co.
United States
Research Park Dr.
(39.24868, -76.71406)
Other
Existing
Uncontrolled
Unknown
2 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
Catonsville, MD
Baltimore Co.
United States
UMBC Blvd. / Research Park Dr.
(39.24874, -76.71580)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
44.3950
Other (At-Grade)
Single-Lane
2015 Elliptical shape. ICD estimated from Google Maps linework.
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
Cagliari, Sardinia
Cagliari
Italy
Via Giuseppe Peretti / Via Stamira / SS131dir (Circonvallazione Quadrifoglio) Ramps
(39.24951, 9.11493)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified)
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).
Ellicott City, MD
Howard Co.
United States
Academy Rd. / Hillsborough Rd. / Chews Vineyard
(39.24993, -76.78913)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands.
Ellicott City, MD
Howard Co.
United States
Hillsborough Rd. / English Morning Ln.
(39.25046, -76.79507)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands.
Selargius, Sardinia
Cagliari
Italy
Via Giuseppe Peretti / Via Araolla / Piazzale Alessandro Ricchi
(39.25098, 9.10911)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, 2x2 max)
Incline Village, NV
Washoe Co.
United States
SR 28 (Tahoe Blvd.) / SR 431 (Mt Rose Hwy.)
(39.25146, -119.97321)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
39.7690
Other (At-Grade)
Single-Lane
2012 Reduced from two entering lanes (LT only, TH only) on west leg to one lane in 2015-2016. Now single-lane roundabout. ICD estimated from Google Maps linework.
Blue Ash, OH
Hamilton Co.
United States
Glendale Milford Rd. / Lake Forest Dr. / Summit Pl.
(39.25169, -84.38466)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
50.8671
Other (At-Grade)
Multilane (2 Lane, unspecified)
2019 ICD estimated from Google Maps linework.
Catonsville, MD
Baltimore Co.
United States
Hilltop Cir. / UMBC Blvd.
(39.25178, -76.71442)
Rotary
Existing
All-Way Yield
None
4 Approaches
0 Driveways
60.1156
Other (At-Grade)
Multilane (2 Lane, unspecified)
2015 Lane changes needed for some through movements. ICD estimated from Google Maps linework.
Monserrato, Sardinia
Cagliari
Italy
Via Riu Mortu / Via Cesare Cabras / Viale Trieste / Via Giuseppe Zuddas
(39.25227, 9.14655)
Other
Existing
Other
Unknown
5 Approaches
0 Driveways
Other (At-Grade)
Multilane (2 Lane, 2x2 max)
Mix of stop and yield control on entry.
Kansas City, MO
Platte Co.
United States
N Serene Ave. / NW Prairie View Rd.
(39.25268, -94.66677)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
29.5950
Other (At-Grade)
Single-Lane
2005 ICD estimated from Google Maps linework.
Kansas City, MO
Platte Co.
United States
N Congress Ave. / MO-152 EB Off-ramp / N Serene Ave.
(39.25328, -94.66808)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
51.7908
Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified)
2005 ICD estimated from Google Maps linework.
Harrison, OH
Hamilton Co.
United States
Dry Fork Rd. / West Rd.
(39.25461, -84.76702)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
33.5280
Other (At-Grade)
Single-Lane
2021 Next to high school and junior high school. https://www.facebook.com/CityofHarrison/photos/a.155847067781927/4751915121508409/?type=3&source=48
Kansas City, MO
Platte Co.
United States
N Congress Ave. / MO-152 WB On-ramp / NW 96th Terr.
(39.25531, -94.66793)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
55.4886
Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified)
2005 ICD estimated from Google Maps linework.
Catonsville, MD
Baltimore Co.
United States
MD 372 / Hilltop Rd. / Entrance to UMBC
(39.25733, -76.71964)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
35.1417
Other (At-Grade)
Single-Lane
1998 Functional Class: Collector ICD estimated from Google Maps linework.
Ellicott City, MD
Howard Co.
United States
College Ave. / Bending Sky Way
(39.25754, -76.79122)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
26.8186
Other (At-Grade)
Single-Lane
2012 ICD estimated from Google Maps linework.
Kansas City, MO
Platte Co.
United States
Line Creek Pkwy. / Tiffany Springs Rd.
(39.25957, -94.61010)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
51.8160
Other (At-Grade)
Multilane (2 Lane, 2x1 max)
2021
Catonsville, MD
Baltimore Co.
United States
Hidden Bludd Cir. / Jacks Ct.
(39.25966, -76.71926)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
Romeira, Santarém
Santarém
Portugal
N114 / N3
(39.26012, -8.72073)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
Other (At-Grade)
Single-Lane
Coves North, MO
Platte Co.
United States
NW Old Tiffany Springs Rd. / N Green Hills Rd.
(39.26253, -94.63089)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
44.3863
Other (At-Grade)
Multilane (2 Lane, unspecified)
2015 Elliptical shape. https://www.linecreekloudmouth.com/blog/street-improvements/ ICD estimated from Google Maps linework.
Charles Town, WV
Jefferson Co.
United States
Prospect Hill Blvd. / Butler St.
(39.26299, -77.87787)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
Millington, MD
Kent Co.
United States
MD 291 / US 301 NB Ramps
(39.26386, -75.86260)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
28.6656
Freeway Ramps (Grade-Separated)
Single-Lane
1999 Opened August 1999. ICD estimated from Google Maps linework.
Glenelg, MD
Howard Co.
United States
Triadelphia Rd. / Ten Oaks Rd.
(39.26399, -76.98621)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
32.0040
Other (At-Grade)
Single-Lane
2000 Year Completed estimated (1992-2002).
Millington, MD
Kent Co.
United States
MD 291 / US 301 SB Ramps
(39.26463, -75.86641)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
31.4393
Freeway Ramps (Grade-Separated)
Single-Lane
1999 Opened August 1999. ICD estimated from Google Maps linework.
Bloomington, IN
Monroe Co.
United States
Sample Rd. / N Wayport Rd. / N Frontage Rd. E
(39.26549, -86.51969)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
38.1000
Other (At-Grade)
Single-Lane
2017 Year Completed estimated (2016-2019).
Bloomington, IN
Monroe Co.
United States
Sample Rd. / I-69 NB Ramps
(39.26581, -86.52203)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
38.1000
Freeway Ramps (Grade-Separated)
Single-Lane
2017 Year Completed estimated (2016-2019).
Bloomington, IN
Monroe Co.
United States
Sample Rd. / N Frontage Rd. W / I-69 SB Ramps
(39.26595, -86.52428)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
38.1000
Freeway Ramps (Grade-Separated)
Single-Lane
2017 Year Completed estimated (2016-2019).
Kansas City, MO
Clay Co.
United States
N Shoal Creek Pkwy / NE 96th St
(39.26609, -94.48916)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
72.1240
Other (At-Grade)
Multilane (2 Lane, unspecified)
2008 ICD estimated from Google Maps linework.
Charles Town, WV
Jefferson Co.
United States
Ball Circle
(39.26676, -77.87701)
Other
Existing
Unknown
Unknown
2 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
Kansas City, MO
Clay Co.
United States
N Shoal Creek Pkwy / N Eastern Ave
(39.26697, -94.49252)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
82.2943
Other (At-Grade)
Multilane (2 Lane, unspecified)
2011 ICD estimated from Google Maps linework.
Kansas City, MO
Clay Co.
United States
N Maplewoods Pkwy. / NE 96th St.
(39.26747, -94.55716)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
45.7200
Other (At-Grade)
Multilane (2 Lane, 2x1 max)
2021 East leg stubbed. https://www.kcmo.gov/Home/Components/FacilityDirectory/FacilityDirectory/139/360?npage=2
Baltimore, MD
Baltimore City
United States
Whetstone Way / (parking)
(39.26820, -76.60021)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands.
Meadowbrook Heights, MO
Clay Co.
United States
Tiffany Springs Pkwy
(39.26919, -94.58184)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
Other (At-Grade)
Single-Lane
Kansas City, MO
Clay Co.
United States
NW 96th St. / N Summit St.
(39.26988, -94.58925)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
41.6078
Other (At-Grade)
Multilane (2 Lane, unspecified)
2013 ICD estimated from Google Maps linework.
Kansas City, MO
Clay Co.
United States
NW 96th St. / US 169 SB Ramps
(39.26994, -94.58598)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
40.6831
Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified)
2013 ICD estimated from Google Maps linework.
Kansas City, MO
Clay Co.
United States
Tiffany Springs Pkwy. / NW 96th St. / US 169 NB Ramps
(39.26998, -94.58361)
Roundabout
Existing
All-Way Yield
None
3 Approaches
0 Driveways
41.6077
Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified)
2013 ICD estimated from Google Maps linework.
Charles Town, WV
Jefferson Co.
United States
Haversack Circle
(39.27053, -77.84909)
Other
Existing
Unknown
Unknown
3 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
Larkspur, CO
Douglas Co.
United States
Bear Dance Dr. / Sky View Ln. / Elk View Rd. / Lake Dr.
(39.27054, -104.90711)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
31.4367
Other (At-Grade)
Single-Lane
2003 Year Completed estimated (2002-2004). ICD estimated from Google Maps linework.
Kansas City, MO
Platte Co.
United States
N Ambassador Dr. / NW Tiffany Springs Pkwy.
(39.27269, -94.66401)
Rotary
Existing
All-Way Yield
None
3 Approaches
0 Driveways
101.7038
Other (At-Grade)
Multilane (2 Lane, unspecified)
Converted rotary. ICD estimated from Google Maps linework.
Kansas City, MO
Platte Co.
United States
NW Skyview Ave. / NW Tiffany Springs Pkwy.
(39.27313, -94.65420)
Rotary
Existing
All-Way Yield
None
4 Approaches
0 Driveways
132.2141
Other (At-Grade)
Multilane (2 Lane, unspecified)
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.
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.
Kansas City, MO
Clay Co.
United States
N Maplewoods Pkwy. / New Mark Dr. / NE 100th St.
(39.27475, -94.55715)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
45.7200
Other (At-Grade)
Single-Lane
2021 https://www.kcmo.gov/Home/Components/FacilityDirectory/FacilityDirectory/139/360?npage=2
Smyrna, DE
Kent Co.
United States
Ormonde Circle
(39.27525, -75.61641)
Other
Existing
Unknown
Unknown
3 Approaches
13 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands.
Charles Town, WV
Jefferson Co.
United States
St George St. / Citizens Way / US 340 SB Ramps
(39.27528, -77.84935)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
30.5100
Freeway Ramps (Grade-Separated)
Single-Lane
2018 Year Completed estimated (2015-2019). ICD estimated from Google Maps linework.
Catonsville, MD
Baltimore Co.
United States
Edmundson Avenue / Old Frederick Road
(39.27533, -76.76612)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
20.3400
Other (At-Grade)
Single-Lane
2010 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.
Glenwood, MD
Howard Co.
United States
Burntwoods Rd. / Sharp Rd.
(39.27702, -77.00369)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
29.5847
Other (At-Grade)
Single-Lane
2006 Adjacent to Glenelg High School. ICD estimated from Google Maps linework.
Smyrna, DE
Kent Co.
United States
Newgate Circle
(39.27813, -75.61345)
Other
Existing
Unknown
Unknown
4 Approaches
10 Driveways
0.0000
Other (At-Grade)
Single-Lane
Ellicott City, MD
Howard Co.
United States
Coventry Court Dr.
(39.27862, -76.87340)
Other
Existing
Unknown
Unknown
2 Approaches
2 Driveways
0.0000
Other (At-Grade)
Unknown
Laddonia, MO
Audrain Co.
United States
US 54 / MO 19 / CR J
(39.28073, -91.64373)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
54.8640
Other (At-Grade)
Single-Lane
2022 https://www.modot.org/node/27038
Baltimore, MD
Baltimore City
United States
S President St. / Aliceanna St.
(39.28317, -76.60158)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
No splitter islands on three legs.
Baltimore, MD
Baltimore City Co.
United States
Wilkens Ave / Mount St / Ramsey St
(39.28325, -76.64332)
Roundabout
Existing
All-Way Yield
None
5 Approaches
0 Driveways
31.4310
Other (At-Grade)
Single-Lane
2001 Completed prior to 2002 ICD estimated from Google Maps linework.
Kansas City, MO
Clay Co.
United States
N Maplewoods Pkwy. / NE 106th St. / NE Staley Ferris Dr.
(39.28508, -94.55712)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
51.8160
Other (At-Grade)
Single-Lane
2021 Peanut shaped. Replaced two offset T-intersections. https://www.kcmo.gov/Home/Components/FacilityDirectory/FacilityDirectory/139/360?npage=2
Ellicott City, MD
Howard Co.
United States
Lancelot Cross / Butterfruit Way / Argent Path / Stardust Ln.
(39.28522, -76.90384)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
57.9120
Other (At-Grade)
Single-Lane
1998 Year Completed estimated (1993-2002).
Point of Rocks, MD
Frederick Co.
United States
US 15 / Point of Rocks Rd.
(39.28643, -77.53096)
Roundabout
Existing
All-Way Yield
Unknown
4 Approaches
0 Driveways
47.1443
Other (At-Grade)
Multilane (2 Lane, unspecified)
2008 ICD estimated from Google Maps linework.
Truckee, CA
Placer Co.
United States
Northstar Dr. / Ridgeline Dr.
(39.28647, -120.10701)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
40.6735
Other (At-Grade)
Multilane (2 Lane, unspecified)
2008 Year Completed estimated (2006-2009). ICD estimated from Google Maps linework.
Kansas City, MO
Platte Co.
United States
N Platte Purchase Dr. / NW 108th St.
(39.28944, -94.60190)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
45.7200
Other (At-Grade)
Single-Lane
2015 Year Completed estimated (2015-2016).
Kansas City, MO
Clay Co.
United States
NW 108th St. / US 169 NB Ramps
(39.28944, -94.58446)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
41.5961
Unknown
Multilane (2 Lane, unspecified)
2013 Diamond interchange replaced signalized intersection. Series of three roundabouts. ICD estimated from Google Maps linework.
Kansas City, MO
Clay Co.
United States
NW 108th St. / US 169 SB Ramps
(39.28944, -94.58625)
Roundabout
Existing
All-Way Yield
Unknown
3 Approaches
0 Driveways
43.4449
Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified)
2013 Diamond interchange replaced signalized intersection. Series of three roundabouts. ICD estimated from Google Maps linework.
Kansas City, MO
Clay Co.
United States
NW 108th St. / N Summit St.
(39.28953, -94.58976)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
40.6717
Other (At-Grade)
Multilane (2 Lane, unspecified)
2013 Series of three roundabouts. ICD estimated from Google Maps linework.
Kansas City, MO
Clay Co.
United States
N Shoal Creek Pkwy. / Maplewoods Pkwy.
(39.28995, -94.55702)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
51.8160
Other (At-Grade)
Single-Lane
2021 Merging right-turn bypass lane lane on west leg. https://www.kcmo.gov/Home/Components/FacilityDirectory/FacilityDirectory/139/360?npage=2
Deerfield Township, OH
Warren Co.
United States
Fields Ertel Rd. / N Lebanon Rd. / Columbia Rd.
(39.28999, -84.28242)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
28.6549
Other (At-Grade)
Single-Lane
2017 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).
Baltimore, MD
Baltimore City Co.
United States
Old Frederick Road / Maple Wood Road
(39.29094, -76.69283)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
25.8815
Other (At-Grade)
Single-Lane
2013 4th leg not built yet - for future development ICD estimated from Google Maps linework.
Baltimore, MD
Baltimore City
United States
New Hope Circle
(39.29360, -76.60289)
Other
Existing
Unknown
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
Pedestrian access to central island. Parking along circulatory roadway.
Ranson, WV
Jefferson Co.
United States
Lancaster Circle (S Fairfax Blvd. / S Mildred St. / W 4th Ave.)
(39.29523, -77.86039)
Other
Existing
All-Way Yield
Unknown
6 Approaches
0 Driveways
52.6841
Other (At-Grade)
Single-Lane
Pedestrian access to central island. ICD estimated from Google Maps linework.
Baltimore, MD
Baltimore City
United States
Washington Pl. / Mount Vernon Pl.
(39.29756, -76.61568)
Signalized Roundabout/Circle
Existing
Signal
Unknown
4 Approaches
0 Driveways
0.0000
Other (At-Grade)
Single-Lane
Essex, MD
Baltimore Co.
United States
Southeast Blvd. (MD 702) / Hyde Park Rd.
(39.29884, -76.43951)
Roundabout
Existing
All-Way Yield
None
4 Approaches
0 Driveways
40.6663
Other (At-Grade)
Multilane (2 Lane, unspecified)
2006 Built as temporary installation, then converted to permanent design. 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.