Roundabouts Database

29465 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
Revere, MA
Suffolk Co.
United States 		SR 60 / Beach St.
(42.40913, -71.00166) 		Rotary
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
81.1284 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Through movement passes through center. Signalized. Functional Class: Arterial ICD estimated from Google Maps linework.
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.
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.
Northville, MI
Wayne Co.
United States 		Yellowstone Dr. / Johnson Creek Dr.
(42.40412, -83.52414) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2005
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
Boston, MA
Suffolk Co.
United States 		Broadway / Main
(42.40244, -71.06048) 		Rotary
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
123.4694 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
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.
Northville, MI
Wayne Co.
United States 		Carriage Way / Glacier Rd.
(42.40220, -83.53576) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2004 Year Completed estimated (2002-2005).
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.
Lake Villa, IL
Lake Co.
United States 		Monaville Rd. / N Fairfield Rd.
(42.40096, -88.11041) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021 https://www.lakecountyil.gov/3686/Fairfield-Rd
Lake Villa, IL
Lake Co.
United States 		Cedar Lake Rd. / Monaville Rd.
(42.39797, -88.09213) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
37.9254 		Other (At-Grade)
Single-Lane 		2013 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.
Northville, MI
Wayne Co.
United States 		Johnson Creek Dr. / (park entrance)
(42.39610, -83.51860) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
38.1000 		Other (At-Grade)
Single-Lane 		2004 Year Completed estimated (2002-2005).
Amherst, MA
Hampshire Co.
United States 		Pleasant St / Governors Dr / Eastman Ln
(42.39522, -72.52693) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.7529 		Other (At-Grade)
Single-Lane 		2011 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.
Machesney Park, IL
Winnebago Co.
United States 		Swanson Rd. / Perryville Rd.
(42.39150, -88.99469) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.6369 		Other (At-Grade)
Single-Lane 		2008 Year Completed estimated (2007-2009). 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.
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.
East Boston, MA
Suffolk Co.
United States 		Saratoga St / Boardman St / Ford St
(42.38701, -71.00805) 		Traffic Calming Circle
Existing 		Other
None 		4 Approaches
0 Driveways
25.5821 		Other (At-Grade)
Single-Lane 		control type: Ford St and Boardman St all-way stop On-street parking on both sides. 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 		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.
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.
Amherst, MA
Hampshire Co.
United States 		E Pleasant St / Triangle St
(42.38156, -72.51932) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.3487 		Other (At-Grade)
Single-Lane 		2017 ICD estimated from Google Maps linework.
Amherst, MA
Hampshire Co.
United States 		University Dr. / Fearing St. / (parking)
(42.38077, -72.53192) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
27.4317 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2020 Serves University of Massachusetts Parking Lot 21.
Grosse Pointe Park, MI
Wayne Co.
United States 		Kercheval Ave. / Wayburn St.
(42.38076, -82.94229) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
19.4090 		Other (At-Grade)
Single-Lane 		2014 ICD estimated from Google Maps linework.
Johnsburg, IL
McHenry Co.
United States 		Johnsburg Rd. / St Johns Ave. / N Chapel Hill Rd.
(42.38032, -88.24188) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.5249 		Other (At-Grade)
Single-Lane 		2014 Elliptical shape. Year Completed estimated (2013-2015). ICD estimated from Google Maps linework.
Northfield Township, MI
Washtenaw Co.
United States 		N Territorial Rd. / US 23 NB Ramps
(42.37969, -83.75634) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
39.6240 		Freeway Ramps (Grade-Separated)
Single-Lane 		2017 Merging right-turn bypass lane on east leg.
Northfield Township, MI
Washtenaw Co.
United States 		N Territorial Rd. / US 23 SB Ramps
(42.37952, -83.75786) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
39.6240 		Freeway Ramps (Grade-Separated)
Single-Lane 		2017 Merging right-turn bypass lane on west leg.
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.
Gurnee, IL
Lake Co.
United States 		Almond Rd. / Dada Dr.
(42.37601, -87.98463) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2018 https://www.gurnee.il.us/government/departments/community-development/engineering/almond-and-dada-intersection
South Haven Township, MI
Van Buren Co.
United States 		M-43 / 12th Ave. / 72nd St.
(42.37490, -86.24413) 		Roundabout
Existing 		All-Way Yield
Unknown 		6 Approaches
0 Driveways
42.3509 		Other (At-Grade)
Single-Lane 		2010 ICD estimated from Google Maps linework.
Central Point, OR
Jackson Co.
United States 		Taylor Rd. / Silver Creek Dr.
(42.37467, -122.92876) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
22.0579 		Other (At-Grade)
Single-Lane 		2004 Year Completed estimated (2003-2005). ICD estimated from Google Maps linework.
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
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.
Bath, NY
Steuben Co.
United States 		Rte 415 / Rte 53 (Main St.)
(42.36996, -77.36402) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
37.0600 		Other (At-Grade)
Single-Lane 		2019 ICD estimated from Google Maps linework.
Salem Township, MI
Washtenaw Co.
United States 		N Territorial Rd. E / Pontiac Trl.
(42.36546, -83.65682) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2022 https://www.wcroads.org/wcrc-project/pontiac-tr-n-territorial-rd-roundabout/
Chatham, NY
Columbia Co.
United States 		Rte 66 / Rte 295
(42.36392, -73.59497) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
22.9441 		Other (At-Grade)
Single-Lane 		2009 Small single-laner in village setting. ICD estimated from Google Maps linework.
Newfield Hamlet, NY
Tompkins Co.
United States 		Elira Rd. (Rte 13) / Trumbull Corners Rd. (Rte 133)
(42.36021, -76.59969) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
32.6531 		Other (At-Grade)
Single-Lane 		2018 ICD estimated from Google Maps linework.
Woodstock, IL
McHenry Co.
United States 		Charles Rd. / Raffel Rd.
(42.36007, -88.42864) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
37.9483 		Other (At-Grade)
Single-Lane 		2017 ICD estimated from Google Maps linework.
Brighton, MA
Suffolk Co.
United States 		Beacon St / Soldiers Field Parkway / Parsons St / US 20
(42.35821, -71.16022) 		Rotary
Existing 		Other
None 		5 Approaches
0 Driveways
147.3851 		Other (At-Grade)
Multilane (3+ Lane) 		Lane redesign in approx. 2013 Pavement markings redone in approx. 2010. Control Type: mix of Signal, stop and yield signs. All approaches have their own treatment. ICD estimated from Google Maps linework.
Berlin, MA
Worcester Co.
United States 		River Rd W / South St / Whitney Rd
(42.35764, -71.62354) 		Rotary
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
60.0136 		Other (At-Grade)
Single-Lane 		New pavement markings (shark teeth and definition of circular roadway) in 2016 ICD estimated from Google Maps linework.
Berlin, MA
Worcester Co.
United States 		River Rd W / Basset Rd
(42.35534, -71.62343) 		Roundabout
Existing 		All-Way Yield
Other 		4 Approaches
0 Driveways
32.6557 		Other (At-Grade)
Single-Lane 		2016 X-W11-2 installed on all approaches splitter islands with crosswalks (high vis ladders) new sidewalks around the roundabout. context in development, more mixed-use seems to be planned for the future 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.
Medford, OR
Jackson Co.
United States 		Springbrook Rd. / Cedar Links Dr.
(42.35287, -122.84582) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021 https://www.medfordoregon.gov/News-Articles/Springbrook-Road-Improvement-Project
Boston, MA
Suffolk Co.
United States 		Northern Ave / Massport Haul Rd / Fid Kennedy Rd
(42.34767, -71.03621) 		Traffic Calming Circle
Existing 		Other
None 		4 Approaches
1 Driveways
24.7154 		Other (At-Grade)
Single-Lane 		New pavement markings (roundabout like) on approaches in June 2017. Control Type: 2 yield (Northern Ave), 1 stop Massport Haul Rd and 1 uncontrolled (stop sign is missing?) (Fid Kennedy Ave). ICD estimated from Google Maps linework.
Northampton, MA
Hampshire Co.
United States 		Main St (Rte 9) / Bridge Rd
(42.34356, -72.68114) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.6618 		Other (At-Grade)
Single-Lane 		2011 ICD estimated from Google Maps linework.
Medford, OR
Jackson Co.
United States 		N Cottage St. / Ohio St.
(42.34260, -122.88285) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
36.1932 		Other (At-Grade)
Single-Lane 		2012 Year Completed estimated (2011-2012). West leg religned to southwest 2016-2017. ICD estimated from Google Maps linework. 21442
Medford, OR
Jackson Co.
United States 		OR 238 (Rossanley Dr.) / Cheshire Way / (unknown)
(42.34081, -122.90492) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-lane w/ Traversable Central Island 		2023 Tactile directional indicators across bicycle ramps.
Amherst, MA
Hampshire Co.
United States 		Rte 116 (West St.) / Pomeroy Ln. / W Pomeroy Ln.
(42.34000, -72.52016) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.0040 		Other (At-Grade)
Single-Lane 		2023 https://www.gazettenet.com/Amherst-road-projects-starting-Monday-50879230
Chelsea, MI
Washtenaw Co.
United States 		M-52 (Stockbridge Chelsea Rd.) / Werkner Rd.
(42.33671, -84.02885) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Single-Lane 		2016
Boston, MA
Suffolk Co.
United States 		William J Day Blvd / Broadway
(42.33584, -71.02402) 		Rotary
Existing 		Uncontrolled
None 		3 Approaches
0 Driveways
19.4229 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		No pavement markings on circular roadway. On street parking on circular roadway. ICD estimated from Google Maps linework.
North Chicago, IL
Lake Co.
United States 		W Dugdale Rd. / 14th St.
(42.33414, -87.86542) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.3784 		Other (At-Grade)
Single-Lane 		2019 https://www.chicagotribune.com/suburbs/lake-county-news-sun/opinion/ct-lns-moran-14th-street-roundabout-st-1106-20191105-ks75xkqok5bm5ok3h5u5q64mtu-story.html ICD estimated from Google Maps linework.
Northampton, MA
Hampshire Co.
United States 		Rte 9 (Bridge St.) / Damon Rd. / I-91 NB Off-Ramp
(42.33358, -72.62071) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2021 Year Completed estimated (2018-2021).
Kalamazoo, MI
Kalamazoo Co.
United States 		Gull Rd. / G Ave.
(42.33324, -85.50268) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2021 https://wwmt.com/news/local/roundabout-opens-on-gull-road-in-comstock-township
Boston, MA
Suffolk Co.
United States 		Old Colony Ave. / Columbia Rd. / Southampton St.
(42.32935, -71.05222) 		Rotary
Existing 		Unknown
Unknown 		5 Approaches
0 Driveways
66.2213 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Functional Class: Arterial ICD estimated from Google Maps linework.
Medford, OR
Jackson Co.
United States 		E Main St. / E 8th St.
(42.32781, -122.86861) 		Other
Existing 		Uncontrolled
None 		3 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		Bicycle-only circular intersection.
Scio Township, MI
Washtenaw Co.
United States 		Baker Rd. / Dan Hoey Rd.
(42.32693, -83.88729) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2018
Jamaica Plain, MA
Suffolk Co.
United States 		Heath Square Rotary (Heath St. / New Heath St. / Hensley St. / Parker St.)
(42.32630, -71.10037) 		Rotary
Existing 		All-Way Yield
Unknown 		5 Approaches
0 Driveways
33.5538 		Other (At-Grade)
Single-Lane 		2004 Converted to circular rotary from triangular intersection in 2004. ICD estimated from Google Maps linework.
Windsor, ON
Essex
Canada 		Riverside Dr. / Manning Rd.
(42.32627, -82.86818) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
19.4259 		Other (At-Grade)
Single-Lane 		2013 Year Completed estimated (2012-2014 - streetview). ICD estimated from Google Maps linework.
Dexter, MI
Washtenaw Co.
United States 		Baker Rd. / Shield Rd. / Dongara Dr.
(42.32529, -83.88714) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2018
Brookline, MA
Norfolk Co.
United States 		Chestnut St / Pond Ave
(42.32283, -71.11966) 		Rotary
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
36.2047 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Brookline, MA
Norfolk Co.
United States 		Lee St / Warren St / Dudley St
(42.32272, -71.13750) 		Rotary
Existing 		Other
None 		3 Approaches
0 Driveways
52.9826 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Jamaica Plain, MA
Suffolk Co.
United States 		Hyde Square Rotary (Centre St. / Perkins St. / Day St.)
(42.32193, -71.10991) 		Rotary
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
24.7255 		Other (At-Grade)
Single-Lane 		Stop control on Day St. Reconfigured in 2018 but retains stop control on Day St. ICD estimated from Google Maps linework.
Boston, MA
Suffolk Co.
United States 		Columbia Rd. / William J. Day Blvd.
(42.32172, -71.05128) 		Rotary
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
69.7616 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Functional Class: Arterial ICD estimated from Google Maps linework.
Medford, OR
Jackson Co.
United States 		Highland Dr. / Siskiyou Blvd.
(42.32110, -122.84986) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Single-Lane 		2006 Elliptical shaped. ICD = 140 ft x 125 ft. Fire station on south leg.
Windsor, ON
Essex
Canada 		Mickey Renaud Way / Memorial Cup Way
(42.32027, -82.92792) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
43.0000 		Other (At-Grade)
Single-Lane 		2005 Year Completed estimated (2004-2009).
Amherst, MA
Hampshire Co.
United States 		Bay Rd / West St (Rte 116)
(42.31938, -72.52627) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
51.2193 		Other (At-Grade)
Single-Lane 		2011 Side-by-side roundabouts replacing two T-intersections ICD estimated from Google Maps linework.
Amherst, MA
Hampshire Co.
United States 		West St (Rte 116) / W Bay Rd
(42.31886, -72.52762) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.9211 		Other (At-Grade)
Single-Lane 		2011 Side-by-side roundabouts replacing two T-intersections ICD estimated from Google Maps linework.
Ann Arbor, MI
Washtenaw Co.
United States 		Nixon Rd. / Dhu Varren Rd. / Green Rd.
(42.31702, -83.70779) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
36.5760 		Other (At-Grade)
Single-Lane 		2017
Boston, MA
Suffolk Co.
United States 		Dominic J Bianculli Blvd / University Dr
(42.31403, -71.04246) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
1 Driveways
37.0930 		Other (At-Grade)
Single-Lane 		2018 This rotary seems to have been demolished in 2016 and converted to a roundabout in 2018. ICD estimated from Google Maps linework.
Windsor, ON
Essex
Canada 		Parent Ave. / Erie St. E
(42.31363, -83.02060) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
18.5466 		Other (At-Grade)
Single-Lane 		2011 http://www.calgaryherald.com/media+conference+held+Monday+2011+explain+proper+roundabout+intersection+Erie+Street+Parent+Avenue+Windsor+This+view+roundabout+from+Parent+looking+south/5635192/story.html ICD estimated from Google Maps linework.
Jamaica Plain, MA
Suffolk Co.
United States 		Arborway / Prince St. / Pond St.
(42.31339, -71.12175) 		Rotary
Existing 		All-Way Yield
Unknown 		6 Approaches
0 Driveways
82.1352 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Rockford, IL
Winnebago Co.
United States 		Lyford Rd. / (medical center entrance)
(42.31307, -88.95526) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
60.9600 		Other (At-Grade)
Single-Lane 		2018 Yielding right-turn bypass lanes on south and east legs. Year Completed estimated (2018-2019).
Woodstock, IL
McHenry Co.
United States 		S Madison St. / S South St. / Lake Ave.
(42.31289, -88.44469) 		Roundabout
Existing 		All-Way Yield
Unknown 		5 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2022 https://www.woodstockil.gov/publicworks/page/south-lake-madison-roundabout
Northampton, MA
Hampshire Co.
United States 		Pleasant St (US 5) / Conz St
(42.31150, -72.62438) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
30.0288 		Other (At-Grade)
Single-Lane 		2015 ICD estimated from Google Maps linework.
Windsor, ON
Essex
Canada 		Brighton Rd. (CR 21) / Tecumseh Rd. E
(42.31138, -82.84547) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
1 Driveways
33.0000 		Other (At-Grade)
Single-Lane 		2010 Year Completed estimated (2009-2011).
West Roxbury, MA
Suffolk Co.
United States 		W. Roxbury Pkwy. / Lagrange St. / Newton St. / Hammond Pond Pkwy. / Hammond St.
(42.31049, -71.16329) 		Rotary
Existing 		All-Way Yield
Unknown 		5 Approaches
1 Driveways
72.4235 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2014 Retrofitted in 2014 with the pavement markings. ICD estimated from Google Maps linework. Lacks entry deflection on multiple legs, intersection sight distance.
Scio Township, MI
Washtenaw Co.
United States 		Miller Rd. / N Zeeb Rd.
(42.31011, -83.83946) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2024 https://www.wcroads.org/wcrc-project/miller-rd-and-zeeb-rd-roundabout/
Battle Creek, MI
Calhoun Co.
United States 		Hill Brady Rd. / Skyline Dr.
(42.30946, -85.26929) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2023 https://www.mlive.com/news/kalamazoo/2023/10/17m-roundabout-to-open-next-month-near-battle-creek-airport-national-guard-base.html
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.
Jamaica Plain, MA
Suffolk Co.
United States 		Arborway / Centre St.
(42.30899, -71.12169) 		Rotary
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
75.9583 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Windsor, ON
Essex
Canada 		Sandwich St. / Rosedale Ave. / University Ave. W / Riverside Dr. W
(42.30681, -83.07309) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
22.0817 		Other (At-Grade)
Single-Lane 		2017 ICD estimated from Google Maps linework.
Ann Arbor, MI
Washtenaw Co.
United States 		Maple Rd. / (Skyline High School Entrance)
(42.30557, -83.78114) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.6240 		Other (At-Grade)
Single-Lane 		2007 Entrance to high school.
Ann Arbor, MI
Washtenaw Co.
United States 		N Wagner Rd. / Miller Rd.
(42.30551, -83.80006) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.9664 		Other (At-Grade)
Single-Lane 		2020 https://www.wcroads.org/wcrc-project/miller-road-bridge-and-roundabout/
Ann Arbor, MI
Washtenaw Co.
United States 		Huron Pkwy. / Nixon Rd.
(42.30516, -83.70748) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.4800 		Other (At-Grade)
Single-Lane 		2009
West Roxbury, MA
Suffolk Co.
United States 		W. Roxbury Pkwy. / Grove St.
(42.30330, -71.15137) 		Rotary
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
72.4319 		Other (At-Grade)
Unknown 		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.
Ann Arbor, MI
Washtenaw Co.
United States 		Maple Rd. / M-14 WB Ramps
(42.30178, -83.78112) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
159.9999 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2007
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.
Lakeshore, ON
Essex
Canada 		Hwy 22 / Hwy 2
(42.30096, -82.78384) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
48.5842 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2015 At-grade rail crossing on north leg. ICD estimated from Google Maps linework.
Boston, MA
Suffolk Co.
United States 		Franklin Park Rotary (Morton St. / Arborway / Forest Hills Dr.)
(42.30055, -71.10665) 		Rotary
Removed 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
78.6186 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2016 Replaced with signalized intersection. ICD estimated from Google Maps linework.
Windsor, ON
Essex
Canada 		Mill St. / Felix Ave. / Ryan St.
(42.30012, -83.07024) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
28.2675 		Other (At-Grade)
Single-Lane 		2011 Year Completed estimated (2010-2012). ICD estimated from Google Maps linework.
Ann Arbor, MI
Washtenaw Co.
United States 		Maple Rd. / M-14 EB Ramps
(42.29992, -83.78104) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
48.7680 		Freeway Ramps (Grade-Separated)
Multilane (2 Lane, unspecified) 		2007
Island Lake, IL
Lake Co.
United States 		N Darrell Rd. / Neville Rd. / W Case Rd.
(42.29948, -88.17938) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
0.0000 		Other (At-Grade)
Single-Lane 		2023 Oval shaped. Year Completed estimated (2021-2023).
Wellesley, MA
Norfolk Co.
United States 		Wellesley Ave. / Great Plain Ave. / Seaver St.
(42.29865, -71.27926) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
54.8637 		Other (At-Grade)
Single-Lane 		2021 The previous traffic circle had two stopped-controlled approaches and two uncontrolled approaches
North Lincoln Street, MA
Worcester Co.
United States 		Lincoln St. (Rte 70) / Boylston St. (Rte 70) / Benson Ave.
(42.29801, -71.76636) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
39.7526 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2016 ICD estimated from Google Maps linework.
Kalamazoo, MI
Kalamazoo Co.
United States 		Harrison St. / E Ransom St. / E Gull St.
(42.29712, -85.57453) 		Roundabout
Existing 		All-Way Yield
Unknown 		4 Approaches
0 Driveways
37.9863 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2017 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.
West Roxbury, MA
Suffolk Co.
United States 		W. Roxbury Pkwy. / Veterans of Foreign Wars Pkwy.
(42.29649, -71.14560) 		Rotary
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
67.1393 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.