Roundabouts Database

29410 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
Red Cliffs, VIC
Mildura
Australia 		Indi Ave. / Ilex St.
(-34.30708, 142.18804) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Mildura, VIC
Mildura
Australia 		Benetook Ave. / Sixteenth St.
(-34.22766, 142.14067) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Mikołów, Śląskie
Mikołowski
Poland 		Karola Miarki / Konstantego Prusa
(50.17184, 18.89944) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
 Other (At-Grade)
Single-Lane
Mikołów, Śląskie
Mikołowski
Poland 		Konstantego Prusa / Kolejowa
(50.17206, 18.90118) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
 Other (At-Grade)
Single-Lane
Mikkeli, Southern Savonia
Mikkeli
Finland 		Pursialankatu / Vilhonkatu / Valtatie 5 (Viitostie) SB Ramps
(61.68556, 27.27993) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Freeway Ramps (Grade-Separated)
Single-Lane
Mikkeli, Southern Savonia
Mikkeli
Finland 		Kuopiontie / Valtatie 5 (Viitostie) SB Ramps
(61.70272, 27.31913) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
 Freeway Ramps (Grade-Separated)
Single-Lane
Mikkeli, Southern Savonia
Mikkeli
Finland 		Kuopiontie / Salosaarentie / Valtatie 5 (Viitostie) NB Ramps
(61.70171, 27.32340) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Freeway Ramps (Grade-Separated)
Unknown
Mikhaylovka, Primorye
Mikhaylovsky District
Russia 		AH30 / Leninskaya ulitsa
(43.92603, 131.99993) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Miguel Hidalgo, Mexico City
Miguel Hidalgo
Mexico 		Calle Campos Elíseos / Calle Polanco / Calle Schiller
(19.43015, -99.18634) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Unknown 		Pedestrian access to central island.
Miguel Hidalgo, Mexico City
Miguel Hidalgo
Mexico 		Calle Rubén Darío / Calle Campos Elíseos
(19.42984, -99.18267) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Unknown 		Pedestrian access in central island.
Miguel Hidalgo, Mexico City
Miguel Hidalgo
Mexico 		Calle Campos Elíseos / Calle Lamartine
(19.42932, -99.18981) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Unknown
Miguel Hidalgo, Mexico City
Miguel Hidalgo
Mexico 		Calle Campos Elíseos / (unknown)
(19.42799, -99.19352) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Unknown
Gulgong, NSW
Mid-Western Regional
Australia 		B55 (Fisher St.) / Goolma Rd. / Mayne St.
(-32.36546, 149.52598) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Dalkeith, Scotland
Midlothian
United Kingdom 		A6094 (Eskbank Rd. - Bonnyrigg Rd.) / B6392 (Melville Rd. - Dalhousie Rd.) / A768 (Lasswade Rd.) / B703 (Newbattle Rd.)
(55.88853, -3.08053) 		Roundabout
Existing 		All-Way Yield
None 		6 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Lasswade, Scotland
Midlothian
United Kingdom 		A772 (Gilmerton Rd.) / A720 (The City Of Edinburgh Bypass) WB On-Ramp
(55.89821, -3.11191) 		Roundabout
Existing 		All-Way Yield
None 		2 Approaches
0 Driveways
 Freeway Ramps (Grade-Separated)
Single-Lane
Lasswade, Scotland
Midlothian
United Kingdom 		Gilmerton Road Roundabout [A7 (Borders) / A772 (Gilmerton Rd.) / B6392 (Gilmerton Rd.)]
(55.89554, -3.09550) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Lasswade, Scotland
Midlothian
United Kingdom 		A772 (Gilmerton Rd.) / (entrance to Dobbies Garden Centre)
(55.89655, -3.09863) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Dalkeith, Scotland
Midlothian
United Kingdom 		Melville Dykes Road Roundabout [A7 (Borders) / A768 (Melville Dykes Rd. - Lasswade Rd.)]
(55.88844, -3.09395) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Dalkeith, Scotland
Midlothian
United Kingdom 		Eskbank Road Roundabout [A7 (Borders) / A6094 (Eskbank Rd. - Bonnyrigg Rd.) / (parking)]
(55.88239, -3.08914) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, unspecified)
Straiton, Scotland
Midlothian
United Kingdom 		A701 (Straiton Rd.) / B702 (Loanhead Rd.)
(55.88857, -3.16303) 		Signalized Roundabout/Circle
Existing 		Signal
None 		3 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, unspecified) 		Raindrop shaped.
Dalkeith, Scotland
Midlothian
United Kingdom 		A6106 (Millerhill Rd.) / B6415
(55.91186, -3.09135) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, unspecified)
Milton Bridge, Scotland
Midlothian
United Kingdom 		Gowkley Moss Roundabout [A701 / B7003 (Penicuik Rd.) / Bush Loan Rd.]
(55.85784, -3.18553) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Multilane (3+ Lane)
Dalkeith, Scotland
Midlothian
United Kingdom 		A6094 (Musselburgh Rd. - Salters Rd.) / B6414 (Salters Rd.)
(55.89700, -3.05466) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
 Other (At-Grade)
Multilane (2 Lane, unspecified)
Dalkeith, Scotland
Midlothian
United Kingdom 		A6106 (Lauder Rd.) / (unknown)
(55.88848, -3.04612) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
 Other (At-Grade)
Single-Lane
Midland, MI
Midland Co.
United States 		E Freeland Rd. / S Sasse Rd.
(43.52518, -84.22937) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2021 Rural, high-speed approaches.
Midland, MI
Midland Co.
United States 		N Waldo Rd. / E Monroe Rd.
(43.68353, -84.18736) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2023 Opened September 1, 2023. https://www.ourmidland.com/news/article/waldo-monroe-roundabout-open-traffic-sept-1-18308702.php
Midland, TX
Midland Co.
United States 		Tradewinds Blvd. / Anetta Dr.
(31.96937, -102.14896) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
62.4840 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2020 https://www.newswest9.com/article/traffic/city-of-midland-provides-tips-for-driving-on-new-roundabout/513-3c4f3167-cc6f-420a-aeda-ea76f40581cc
Sanford, MI
Midland Co.
United States 		N Meridian Rd. / US 10 WB Ramps
(43.68557, -84.36787) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
40.5924 		Freeway Ramps (Grade-Separated)
Single-Lane 		2015 ICD estimated from Google Maps linework.
Midland, MI
Midland Co.
United States 		Business US 10 WB / E Patrick Rd. / E Lyon Rd.
(43.61168, -84.21498) 		Roundabout
Existing 		All-Way Yield
Unknown 		2 Approaches
0 Driveways
43.2366 		Other (At-Grade)
Single-Lane 		2014 ICD estimated from Google Maps linework.
London, ON
Middlesex County
Canada 		Lambton Dr. / Oxford Dr.
(43.00616, -81.27515) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		5 Approaches
0 Driveways
38.4291 		Other (At-Grade)
Single-Lane 		Constructed sometime in the 1970s. Functional Class: Local ICD estimated from Google Maps linework.
Newton, MA
Middlesex Co.
United States 		Wheeler Rd. / Meadowbrook Rd.
(42.30915, -71.19085) 		Other
Existing 		One-Way/Two-Way Stop
None 		3 Approaches
0 Driveways
22.0809 		Other (At-Grade)
Single-Lane 		2003 At elementary school. ICD estimated from Google Maps linework.
Woburn, MA
Middlesex Co.
United States 		I-95 Ramps / MA 38 (Main St.)
(42.49945, -71.15711) 		Rotary
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
30.8196 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Medford, MA
Middlesex Co.
United States 		Fellsway W. / Forest St. / S Border Rd. / I-93 Ramps
(42.42933, -71.10333) 		Rotary
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
132.2319 		Freeway Ramps (Grade-Separated)
Unknown 		ICD estimated from Google Maps linework.
Medford, MA
Middlesex Co.
United States 		Salem St. (Rte 60) / I-93 Ramps
(42.41946, -71.10398) 		Rotary
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
149.8864 		Freeway Ramps (Grade-Separated)
Single-Lane 		ICD estimated from Google Maps linework.
Somerville, MA
Middlesex Co.
United States 		Mystic Valley Pkwy. / Alewife Brook Pkwy.
(42.41465, -71.13133) 		Rotary
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
25.5708 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Concord, MA
Middlesex Co.
United States 		Rte 2 (Union Tpke-Concord Tpke) / Rte 2A / Barretts Mill Rd. / Commonwealth Ave.
(42.46728, -71.39721) 		Rotary
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
100.4354 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Infamous Concord rotary. ICD estimated from Google Maps linework.
Lowell, MA
Middlesex Co.
United States 		Industrial Ave / American Legion Connector Hwy SB Ramps
(42.61379, -71.32136) 		Rotary
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
75.5895 		Freeway Ramps (Grade-Separated)
Unknown 		Longtime rotary near Lowell Connector. ICD estimated from Google Maps linework.
Cambridge, MA
Middlesex Co.
United States 		Grove St. / Washington St. / Blanchard Rd.
(42.38637, -71.16042) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
3 Driveways
22.0537 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Lexington, MA
Middlesex Co.
United States 		Hancock St. / Hamilton Rd. / Burlington St. / (unknown)
(42.46302, -71.23268) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
23.7889 		Other (At-Grade)
Single-Lane 		2014 ICD estimated from Google Maps linework.
Centralville, MA
Middlesex Co.
United States 		Hunts Falls Bridge / VFW Hwy Ramps
(42.64822, -71.29907) 		Rotary
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
108.9292 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		Rotary interchange. ICD estimated from Google Maps linework.
The Acre, MA
Middlesex Co.
United States 		Arcand Dr. / Hall St. / Martin Luther King Jr Way
(42.64922, -71.31315) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
62.3697 		Other (At-Grade)
Single-Lane 		No splitter islands on two legs. Very wide circulatory roadway. ICD estimated from Google Maps linework.
Carlisle, MA
Middlesex Co.
United States 		Westford St. / Lowell St. / Bedford Rd.
(42.52918, -71.34894) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
2 Driveways
28.9560 		Other (At-Grade)
Single-Lane 		2020 The previous traffic circle was reconstructed with modern roundabout features in 2020.
Pepperell, MA
Middlesex Co.
United States 		Main St. / River Rd. / Hollis St.
(42.66638, -71.58831) 		Other
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
38.6410 		Other (At-Grade)
Single-Lane 		Pedestrian access to central island. ICD estimated from Google Maps linework.
Winchester, MA
Middlesex Co.
United States 		Main St (Rte 38) / Everell Rd / Bacon St / Grove St
(42.44236, -71.13586) 		Traffic Calming Circle
Existing 		Other
None 		5 Approaches
0 Driveways
23.7968 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
West End, MA
Middlesex Co.
United States 		US 20 / I-95 Ramps
(42.37131, -71.26901) 		Rotary
Existing 		Uncontrolled
Unknown 		4 Approaches
0 Driveways
43.2357 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Framingham, MA
Middlesex Co.
United States 		Union Ave / Main St / Maple St
(42.29709, -71.43089) 		Other
Existing 		One-Way/Two-Way Stop
None 		4 Approaches
2 Driveways
51.2374 		Other (At-Grade)
Single-Lane 		Wide circular roadway (2 lane) All approaches 1 lane Geometry unconventional; decreases overview (oval circular road, with minor approaches under an angle) Residential context repaved surface in 2016; new pavement markings consisting of three high vis crosswalks 1 South and 2 North on the major road. No further improvements to pavement markings now or in the last 10 years. Speed limit 25 mph ICD estimated from Google Maps linework.
Cambridge, MA
Middlesex Co.
United States 		Memorial Dr (Rte 3) / Brookline St / BU Bridge (Rte 2)
(42.35424, -71.11081) 		Rotary
Existing 		Other
None 		4 Approaches
0 Driveways
84.7297 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		Control Types: Signals on BU Bridge approach and exit, other approaches yield sign. ICD estimated from Google Maps linework.
Cambridge, MA
Middlesex Co.
United States 		Concord Ave / New St / Fresh Pond Pkwy (US 3, Rte 2)
(42.38670, -71.14100) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
38.8144 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Pavement markings for bike conflict areas added in approx. 2018 (on New St exit). ICD estimated from Google Maps linework.
Cambridge, MA
Middlesex Co.
United States 		Concord Ave (US 3) / Alewife Brook Parkway (Rte 2)
(42.38844, -71.14346) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
56.4557 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Pavement markings installed in 2017. No crosswalks. ICD estimated from Google Maps linework.
Belmont, MA
Middlesex Co.
United States 		Orchard St / Stone St
(42.39213, -71.16707) 		Traffic Calming Circle
Existing 		Uncontrolled
None 		3 Approaches
6 Driveways
57.3345 		Other (At-Grade)
Single-Lane 		No traffic signs nor pavement markings present. ICD estimated from Google Maps linework.
Hudson, MA
Middlesex Co.
United States 		Washington St (Rte 85) / Central S / Main St (Rte 62)
(42.39127, -71.56985) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
21.1699 		Other (At-Grade)
Single-Lane 		On street parking in circulatory roadway ICD estimated from Google Maps linework.
Belmont, MA
Middlesex Co.
United States 		Marsh St / Prospect St
(42.40767, -71.18126) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
2 Driveways
45.7200 		Other (At-Grade)
Single-Lane 		Year Completed unknown. No changes from original configuration.
Wakefield, MA
Middlesex Co.
United States 		Rte 129 (Salem St.-Lowell St.) / Haverhill St. / I-95 Ramps
(42.52541, -71.08090) 		Rotary
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		Pavement markings improvement in 2016.
Everett, MA
Middlesex Co.
United States 		Revere Beach Pkwy. (Rte 16) / Mystic View Rd. / Santilli Hwy
(42.40238, -71.06892) 		Signalized Roundabout/Circle
Existing 		Signal
None 		5 Approaches
0 Driveways
155.4480 		Other (At-Grade)
Multilane (3+ Lane) 		Revere Beach Pkwy extends through the rotary. ICD 560 ft x 460 ft.
Malden, MA
Middlesex Co.
United States 		Fellsway E / Highland Ave
(42.43419, -71.08356) 		Traffic Calming Circle
Existing 		One-Way/Two-Way Stop
None 		4 Approaches
0 Driveways
24.6814 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Medford, MA
Middlesex Co.
United States 		Highland Ave. / Woodland Rd. / Elm St.
(42.44247, -71.09392) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
53.3400 		Other (At-Grade)
Single-Lane 		2015 Added roundabout style pavement markings on approaches and definition of circulating roadway in approx. 2015. Right-turn-only lane and two-lane exit on north leg.
Somerville, MA
Middlesex Co.
United States 		Alewife Brook Pkwy (Rte 16) / Powder House Blvd
(42.40871, -71.13069) 		Rotary
Existing 		Other
None 		3 Approaches
6 Driveways
73.1924 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Powder House Blvd left turn must yield to the SB entering traffic. ICD estimated from Google Maps linework.
Somerville, MA
Middlesex Co.
United States 		Powder House Square [Powder House Blvd. / Broadway / College Ave. / Werner St.]
(42.40114, -71.11677) 		Roundabout
Existing 		All-Way Yield
None 		6 Approaches
0 Driveways
70.1040 		Other (At-Grade)
Single-Lane 		2021 Originally 2-lane traffic circle with signal control on all entries and central island originally accessible for pedestrians. Converted to a single-lane roundabout in 2021 using only signing, striping, and raised markers. As of March 2022, all signals (including pedestrian signals) have been covered.
Winchester, MA
Middlesex Co.
United States 		Main St / Mt Vernon St / Church St / Park St / Laraway Rd
(42.45281, -71.13716) 		Rotary
Existing 		Uncontrolled
Pedestrian Signal (red-yellow-green to drivers) 		5 Approaches
0 Driveways
47.5856 		Other (At-Grade)
Single-Lane 		Improved ped crossings (markings) approx. 2001. Ped access to train station nearby. Bike racks. on-street parking on circular roadway. ICD estimated from Google Maps linework.
Somerville, MA
Middlesex Co.
United States 		Great River Rd. / Grand Union Blvd.
(42.39621, -71.08140) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
31.7524 		Other (At-Grade)
Single-Lane 		2011 ICD estimated from Google Maps linework.
Ayer, MA
Middlesex Co.
United States 		Main St. (Rte 2A, Rte 111) / Sandy Pond Rd. / Littleton Rd. (Rte 2A, Rte 110) / Harvard Rd. (Rte 110, Rte 111) / Barnum Rd
(42.55279, -71.57239) 		Rotary
Existing 		Other
None 		5 Approaches
0 Driveways
118.7740 		Other (At-Grade)
Single-Lane 		All-Yield Control expect for Barnum Rd (Stop-controlled) ICD estimated from Google Maps linework.
Hudson, MA
Middlesex Co.
United States 		Washington St. (Rte 85) / Broad St.
(42.37933, -71.56500) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
55.5817 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2013 entry channelization islands ICD estimated from Google Maps linework.
Piscataway Township, NJ
Middlesex Co.
United States 		Scarlet Knight Way / Campus Rd. / Bartholomew Rd. / Frelinghuysen Rd.
(40.51776, -74.46132) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
57.1998 		Other (At-Grade)
Single-Lane 		2003 ICD estimated from Google Maps linework.
Medford, MA
Middlesex Co.
United States 		Winthrop St. / High St. / Rural Ave.
(42.42129, -71.11800) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		2019 Painted splitter islands. Right-turn-only lanes on southwest and south legs. Converted from traffic circle in 2018-2019.
Framingham, MA
Middlesex Co.
United States 		Natick Mall Rd. / Flutie Pass
(42.30175, -71.38765) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.1502 		Other (At-Grade)
Single-Lane 		2007 Right-turn-only lanes on north and west legs. Year Completed estimated (2006-2007). ICD estimated from Google Maps linework.
Natick, MA
Middlesex Co.
United States 		Natick Mall Rd. / Nouvelle Way / (parking lots/garage)
(42.30232, -71.38495) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
35.3330 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2007 Fifth leg added 2017-2018. ICD estimated from Google Maps linework. 21442
Natick, MA
Middlesex Co.
United States 		Natick Mall Rd. / (parking lots)
(42.30191, -71.38212) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
24.7334 		Other (At-Grade)
Single-Lane 		2018 Year Completed estimated (2018-2019). ICD estimated from Google Maps linework.
Waltham, MA
Middlesex Co.
United States 		Beaver St. / Lyman St.
(42.38402, -71.23042) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
2 Driveways
51.8160 		Other (At-Grade)
Single-Lane 		2015 Unknown date of origin as traffic circle. Converted to roundabout 2015-2016.
Melrose, MA
Middlesex Co.
United States 		Green St. / Howard S.
(42.46562, -71.05908) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
24.3840 		Other (At-Grade)
Single-Lane 		2019 Replaced stop-controlled triangle set of intersections.
Watertown, MA
Middlesex Co.
United States 		Common St. / Orchard St. / Church St.
(42.37243, -71.17858) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
33.5277 		Other (At-Grade)
Single-Lane 		2020
Belmont, MA
Middlesex Co.
United States 		Prospect St / Clifton St
(42.40403, -71.17635) 		Traffic Calming Circle
Existing 		Other
None 		3 Approaches
0 Driveways
24.3840 		Other (At-Grade)
Single-Lane 		two yield-controlled, one stop-controlled approaches
Ashland, MA
Middlesex Co.
United States 		Pond St. / Spyglass Hill Dr. / (parking)
(42.24026, -71.43205) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2022 Utility pole within central island on inner edge of truck apron.
Lexington, MA
Middlesex Co.
United States 		Bedford St. / Harrington Rd. / Hancock St.
(42.45014, -71.23048) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2023 Replaced a triangle of two-way stop intersections. https://www.lexingtonma.gov/235/Battle-Green-Streetscape-Project Video of completed roundabout: https://www.youtube.com/watch?v=dcF64ln0mjo
Westford, MA
Middlesex Co.
United States 		Russells Way
(42.64453, -71.42699) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Westford, MA
Middlesex Co.
United States 		Russells Way
(42.63407, -71.43101) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
Tewksbury, MA
Middlesex Co.
United States 		Jills Way / Jills Way
(42.62204, -71.18720) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Unknown
London, ON
Middlesex
Canada 		Hyde Park Rd. / Sunningdale Rd.
(43.02185, -81.34493) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, unspecified) 		2021 https://london.ctvnews.ca/roundabout-at-hyde-park-and-sunningdale-reopens-to-traffic-1.5654480
London, ON
Middlesex
Canada 		Southdale Rd. W / Colonel Talbot Rd.
(42.93669, -81.31730) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2023 https://www.cbc.ca/news/canada/london/new-roundabout-at-colonel-talbot-and-southdale-road-opens-with-1-lane-1.6986818
London, ON
Middlesex
Canada 		Wickerson Rd. / Ironwood Rd.
(42.94861, -81.35030) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.0000 		Other (At-Grade)
Single-Lane 		2006 Year Completed estimated (2006-2009).
London, ON
Middlesex
Canada 		Bateman Trl. / Paul Peel Ave.
(42.93592, -81.25534) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.0000 		Other (At-Grade)
Single-Lane 		2006 Year Completed estimated (2006-2009).
London, ON
Middlesex
Canada 		Sheffield Blvd. / Holbrook Dr.
(42.96463, -81.15170) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.0000 		Other (At-Grade)
Single-Lane 		2020 Year Completed estimated (2018-2020).
London, ON
Middlesex
Canada 		Beaverbrook Ave. / Oakcrossing Rd.
(42.98694, -81.30524) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.0000 		Other (At-Grade)
Single-Lane 		2010 Year Completed estimated (2009-2011).
London, ON
Middlesex
Canada 		Beaverbrook Ave. / Whetherfield St.
(42.98758, -81.30997) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.0000 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2011-2012).
London, ON
Middlesex
Canada 		Beaverbrook Ave. / Bluegrass Dr.
(42.98836, -81.31543) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.0000 		Other (At-Grade)
Single-Lane 		2006 Year Completed estimated (2003-2006).
London, ON
Middlesex
Canada 		Cherrywood Trl. / Bluegrass Dr.
(42.98728, -81.31882) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
33.0000 		Other (At-Grade)
Single-Lane 		2013 Year Completed estimated (2013-2015).
London, ON
Middlesex
Canada 		Raleigh Blvd. / Tillmann Rd.
(42.93469, -81.30829) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
110.0000 		Other (At-Grade)
Single-Lane 		2010 completed 2010 based on Google historical aerials
London, ON
Middlesex
Canada 		Morgan Ave. / Morgan Crescent / Singleton Ave.
(42.93441, -81.27261) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0000 		Other (At-Grade)
Single-Lane 		2011 Year Completed estimated (2009-2011). Splitter islands added 2015.
London, ON
Middlesex
Canada 		Singleton Ave. / Morgan Ave.
(42.93793, -81.27158) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
35.0000 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2011-2012).
London, ON
Middlesex
Canada 		Evans Blvd. / Meadowgate Blvd.
(42.95077, -81.17398) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0000 		Other (At-Grade)
Single-Lane 		2006 Year Completed estimated (2006-2009).
London, ON
Middlesex
Canada 		Meadowgate Blvd. / Reardon Blvd.
(42.96234, -81.18034) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
35.0000 		Other (At-Grade)
Single-Lane 		2004 Year Completed estimated (2002-2006).
London, ON
Middlesex
Canada 		Coronation Dr. / Carriage Way
(42.99640, -81.32622) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0000 		Other (At-Grade)
Single-Lane 		2006
London, ON
Middlesex
Canada 		Coronation Dr. / Lawson Rd.
(42.99659, -81.32142) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
35.0000 		Other (At-Grade)
Single-Lane 		2009 Year Completed estimated (2006-2009).
London, ON
Middlesex
Canada 		Brunswick Ave. / Coronation Dr.
(42.99836, -81.32060) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0000 		Other (At-Grade)
Single-Lane 		2006
London, ON
Middlesex
Canada 		Callingham Dr. / Meadowlands Way
(43.03489, -81.29534) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.0000 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2010-2013). Splitter islands added 2016-2019. (streetview) 21442
London, ON
Middlesex
Canada 		Trafalgar St. / Hale St.
(42.98579, -81.19280) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
34.9471 		Other (At-Grade)
Single-Lane 		2010 Built on a overpass above Canadian National Railway tracks. Replaced two T-intersections and an at-grade rail crossing. Named the Charley Fox Memorial Overpass and Roundabout ICD estimated from Google Maps linework.
London, ON
Middlesex
Canada 		Sunningdale Rd. W / Wonderland Rd. N
(43.03011, -81.31690) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
50.6368 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Year Completed estimated (2013-2015). ICD estimated from Google Maps linework.
Middlehaven, England
Middlesbrough
United Kingdom 		Moor Rd. / Shepherdson Way / Heath Rd.
(54.57470, -1.21744) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, unspecified)
Middlesbrough, England
Middlesbrough
United Kingdom 		Ormesby Rd. / Sandringham Rd. / (unknown)
(54.55334, -1.19498) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
 Other (At-Grade)
Single-Lane
Middlesbrough, England
Middlesbrough
United Kingdom 		Riverside Park Rd. / Ironmasters Rd.
(54.57678, -1.25401) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
 Other (At-Grade)
Multilane (2 Lane, 2x1 max)
Killingworth, CT
Middledex Co.
United States 		Rte. 80 / Rte. 81
(41.35801, -72.56517) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		1997 First rotary modification in Connecticut. 21442