Roundabouts Database Index

29411 Results

Search by location, intersection, and comments with the Quick Search below. You can search all other attributes by clicking Advanced Search. Sort results by clicking the headers of any column. Click the Intersection name for a details and aerial view. Search results pages can be bookmarked. Results can be exported to KML for viewing in Google Earth.

City, State County Country	Intersection (Lat, Lng)	Type Status	Control Type / Other Control Type	Approaches / Driveways / ICD (m)	Functional Class / LaneType	Year Completed	Comments
Cambridge, ON Waterloo Canada	Franklin Blvd. / Avenue Rd. (43.38042, -80.29905)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)	2020
Cambridge, ON Waterloo Canada	Franklin Blvd. / McQueen Shaver Blvd. (43.33603, -80.28439)	Roundabout Existing	All-Way Yield None	2 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2021
Oakville, ON Halton Canada	William Halton Pkwy. / Ninth Line (43.52182, -79.71624)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Unknown	2020
Toronto, ON Toronto Canada	Resources Rd. / Lowes Pl. / Islington Ave. NB Off-Ramp (43.70802, -79.54995)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane
Brampton, ON Peel Canada	Rivermont Rd. / Workgreen Park Way / Circleview Crescent (43.63594, -79.80228)	Unknown Existing	Unknown Unknown	3 Approaches 0 Driveways	Other (At-Grade) Unknown	2020	Year Completed estimated (2018-2021).
Brampton, ON Peel Canada	Hallstone Rd. / Nova Scotia Rd. / Black Bear Trl. (43.62782, -79.76100)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.0000	Other (At-Grade) Single-Lane	2003	Painted splitter islands. Year Completed estimated (1985-2004).
Guelph, ON Wellington Canada	Brock Rd. / Wellington Road 34 (43.47399, -80.15382)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Unknown	2020
Ottawa, ON Ottawa Canada	Old Richmond Rd. / Stonehaven Dr. (45.28109, -75.83748)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)	2020
Ottawa, ON Ottawa Canada	Regional Road 59 / W Hunt Club Rd. (Regional Road 32) (45.30117, -75.83239)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)	2020
Ottawa, ON Ottawa Canada	Old Richmond Rd. / Hope Side Rd. (45.27730, -75.83512)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)	2020
Ottawa, ON Ottawa Canada	Longfields Dr. / Golflinks Dr. / Stanhope Ct. (45.25079, -75.71990)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2020
Ottawa, ON Ottawa Canada	Richardson Side Rd. / Huntmar Dr. (45.30944, -75.94641)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.0000	Other (At-Grade) Single-Lane	2020	https://kanatanorth.ca/2020/08/05/new-roundabout-at-huntmar-and-richardson-side-road-updates/
Perth South, ON Perth Canada	Hwy 7 / Perth Line 26 (43.32444, -81.02259)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.0000	Other (At-Grade) Single-Lane	2019	https://www.mystratfordnow.com/65000/roundabout-on-highway-7-in-perth-south-reopened/
Georgina, ON Durham Canada	Pefferlaw Rd. / Lake Ridge Rd. (44.31883, -79.18064)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.0000	Other (At-Grade) Single-Lane	2020	https://thebrockvoice.com/2020/06/01/region-resumes-work-on-roundabout-near-wilfrid/
Thunder Bay, ON Thunder Bay Canada	Edward St. / Redwood Ave. (48.39410, -89.27780)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)	2021	https://www.thunderbay.ca/en/city-services/roundabout.aspx
Ottawa, ON Ottawa Canada	(unknown) (45.28965, -75.90432)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.0000	Other (At-Grade) Single-Lane	2011	Within shopping centre. Year Completed estimated (2009-2012).
Ottawa, ON Ottawa Canada	(unknown) (45.28800, -75.90712)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.0000	Other (At-Grade) Single-Lane	2011	Within shopping centre. Year Completed estimated (2009-2012).
Ottawa, ON Ottawa Canada	Abbott St. / Cranesbill Rd. / Rouncey Rd. (45.28287, -75.88916)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.0000	Other (At-Grade) Single-Lane	2018
Tecumseh, ON Essex Canada	Walker Rd. (CR 11) / S Talbot Rd. (42.21667, -82.96444)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2020	https://www.youtube.com/watch?v=TuFUrtqYzBs
Whitchurch-Stouffville, ON York Canada	Baker Hill Blvd. / Prince George Ave. / Glad Park Ave. (43.97897, -79.26096)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2019	Year Completed estimated (2018-2020).
St Thomas, ON Elgin Canada	Burwell Rd. / Ponsford Pl. (42.80168, -81.16236)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2020	https://www.stthomas.ca/news/archived_news/burwell_road__ponsford_place_roundabout
Barrie, ON Simcoe Canada	Governors Dr. / Ring Rd. (44.41354, -79.66887)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	East and west legs have painted splitter islands. Concentric striped circulatory roadway. Year Completed estimated (2009-2013).
Niagara-on-the-Lake, ON Niagara Canada	ON-55 (Niagara Stone Rd.) / Concession 6 Rd. (43.21083, -79.13622)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 46.0000	Other (At-Grade) Single-Lane	2014
Hamilton, ON Hamilton Canada	Whittington Dr. / Raymond Rd. (43.21417, -79.93589)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.0000	Other (At-Grade) Single-Lane	2011	Year Completed estimated (2009-2012). Splitter islands added 2015.
Hamilton, ON Hamilton Canada	Robertson Rd. / Raymond Rd. (43.21206, -79.93525)	Other Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2011	No splitter islands. Year Completed estimated (2009-2012).
Hamilton, ON Hamilton Canada	Raymond Rd. / Irwin Ave. (43.21613, -79.93984)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.0000	Other (At-Grade) Single-Lane	2011	Year Completed estimated (2009-2012). Splitter islands added 2016-2017.
Hamilton, ON Hamilton Canada	Stonehenge Dr. / Raymond Rd. (43.21855, -79.94298)	Roundabout Existing	All-Way Yield None	3 Approaches 1 Driveways 30.0000	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2009-2011). Splitter islands added 2012-2013.
Hamilton, ON Hamilton Canada	Stonehenge Dr. / Meadowlands Blvd. (43.21763, -79.94515)	Other Existing	All-Way Yield None	3 Approaches 0 Driveways 30.0000	Other (At-Grade) Single-Lane	2003	Year Completed estimated (before 2004). Flush splitter islands added 2012-2014. Borderline roundabout.
Hamilton, ON Hamilton Canada	Stonehenge Dr. / Thoroughbred Blvd. (43.21655, -79.95150)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 28.0000	Other (At-Grade) Single-Lane	1998	Year Completed estimated (before 2004).
Kitchener, ON Waterloo Canada	Max Becker Dr. / (unknown) (43.40516, -80.50125)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2002	Year Completed estimated (2001-2005).
Kitchener, ON Waterloo Canada	Cotton Grass St/(unknown) (43.40708, -80.50347)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2002	Year Completed estimated (2001-2005).
Barrie, ON Simcoe Canada	N Village Way / Live Eight Way (44.34121, -79.68023)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.0000	Other (At-Grade) Single-Lane	2014
Barrie, ON Simcoe Canada	Live Eight Way / Park Place Blvd. / (parking) (44.33760, -79.68131)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 55.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	Year Completed estimated (2011-2013).
Newmarket, ON York Canada	Fernbank Rd. / (unknown) / (parking) (44.04355, -79.43718)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2005-2009).
Newmarket, ON York Canada	Nellie Little Crescent / Kingsmere Ave. / Quaker Trl. (44.04142, -79.43972)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2009-2011).
Aurora, ON York Canada	Gateway Dr. / Pedersen Dr. (44.01789, -79.45534)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2002	Year Completed estimated (2002-2005).
Aurora, ON York Canada	Hollandview Trl. / Woodruff Crescent / Hollidge Blvd. (44.01096, -79.45395)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.0000	Other (At-Grade) Single-Lane	1998	Year Completed estimated (1996-2002).
Aurora, ON York Canada	Hollidge Blvd. / John West Way (44.01147, -79.45102)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.0000	Other (At-Grade) Single-Lane	1998	Year Completed estimated (1996-2002).
Aurora, ON York Canada	Hartwell Way / Mavrinac Blvd. (44.02043, -79.44055)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.0000	Other (At-Grade) Single-Lane	2009
Aurora, ON York Canada	Hartwell Way / Conover Ave. (44.01954, -79.44469)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.0000	Other (At-Grade) Single-Lane	2003	Year Completed estimated (2002-2005).
Aurora, ON York Canada	Mavrinac Blvd. / Spring Farm Rd. / Collingwood Ct. (44.01725, -79.43922)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0000	Other (At-Grade) Single-Lane	2009
Aurora, ON York Canada	Spring Farm Rd. / Conover Ave. (44.01623, -79.44361)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0000	Other (At-Grade) Single-Lane	2005	Year Completed estimated (2002-2005).
Aurora, ON York Canada	Mavrinac Blvd. / Borealis Ave. / Tonner Crescent (44.01396, -79.43669)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2009
Aurora, ON York Canada	Borealis Ave. / Conover Ave. (44.01283, -79.44224)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2002-2005).
Aurora, ON York Canada	River Ridge Blvd. / Mavrinac Blvd. (44.01125, -79.43539)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2009
Aurora, ON York Canada	River Ridge Blvd. / Conover Ave. (44.01004, -79.44110)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2004	Year Completed estimated (2002-2005).
Ingersoll, ON Oxford Canada	Plank Line (Hwy 19) / Hwy 401 EB Ramps (43.02638, -80.85271)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.0000	Freeway Ramps (Grade-Separated) Single-Lane	2017	Merging right-turn bypass lanes on southwest and southeast legs.
Ingersoll, ON Oxford Canada	Plank Line (Hwy 19) / Harris St. (Hwy 119) / Hwy 401 WB Ramps (43.02839, -80.85549)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.0000	Freeway Ramps (Grade-Separated) Single-Lane	2017	Merging right-turn bypass lanes on northwest and northeast legs.
Blue Mountains, ON Grey Canada	CR 19 / Gord Canning Dr. / Scenic Caves Rd. (44.49650, -80.30181)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2010	Year Completed estimated (2009-2011).
Thunder Bay, ON Thunder Bay Canada	Marina Park Dr. (Sleeping Giant Pkwy.) / Pearl St. (48.43155, -89.21965)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane	2014	Year Completed estimated (2013-2015).
Kenora, ON Kenora Canada	Park St. / 1st St. S / Fifth Ave. S (49.76642, -94.48513)	Roundabout Existing	All-Way Yield None	5 Approaches 0 Driveways 42.0000	Other (At-Grade) Single-Lane	2019	https://www.facebook.com/CityofKenora/posts/kenoras-second-roundabout-is-open-give-it-a-try-go-from-second-street-to-park-st/2308348529214570/
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
Waterloo, ON Waterloo Canada	Davenport Rd. / Old Abbey Rd. / (shopping center) (43.49957, -80.52551)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.0000	Other (At-Grade) Single-Lane	2012	Right-turn-only leg on north leg. Year Completed estimated (2011-2012).
Waterloo, ON Waterloo Canada	Conestoga Rd. / Kraus Dr. (43.49983, -80.52906)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2009	Add lane right-turn bypass lane on west leg.
Waterloo, ON Waterloo Canada	Hagey Blvd. / Frank Trompa Dr. (43.47734, -80.54814)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2003	Year Completed estimated (before 2005).
Waterloo, ON Waterloo Canada	Columbia St. W / Bennington Gate / Chancery Ln. (43.46485, -80.57403)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	Year Completed estimated (2016-2018).
North Perth (Listowel), ON Perth Canada	Main St. W (Perth Line 86) / Mitchell Rd. (Hwy 23) (43.73665, -80.96526)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.4208	Other (At-Grade) Single-Lane	2016	https://blackburnnews.com/midwestern-ontario/midwestern-ontario-news/2016/11/25/roundabout-listowel-open/ 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).
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).
Mississauga, ON Peel Canada	The Credit Woodlands / McBride Ave. / Credit Heights Dr. (43.55853, -79.65842)	Rotary Existing	Other None	4 Approaches 4 Driveways	Other (At-Grade) Single-Lane		Yields in circulatory roadway.
Georgetown, ON Halton Canada	Barber Dr. / Danby Rd. (43.63229, -79.87161)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane	2006
Georgetown, ON Halton Canada	Danby Rd. / Barber Dr. (43.62737, -79.87845)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane	2006
Caledon, ON Peel Canada	Kennedy Rd. / Newhouse Blvd. / Bonnieglen Farm Blvd. (43.75910, -79.83540)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.0000	Other (At-Grade) Single-Lane	2011	Year Completed estimated (2009-2013).
Oakville, ON Halton Canada	Sixth Line / William Halton Pkwy. (43.49724, -79.75367)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)	2020	https://www.halton.ca/For-Residents/Roads-Construction/Construction-Projects/William-Halton-Parkway-Extension-Project
Milton, ON Halton Canada	Dublin Line / Campbellville Rd. / James Snow Pkwy. (43.53018, -79.93243)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Multilane (2 Lane, unspecified)	2020	Year Completed estimated (2019-2020).
Peterborough, ON Peterborough Canada	Parkhill Rd. / Brealey Dr. / Ackison Rd. (44.30094, -78.38307)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2020	Replaced two T-intersections. https://www.mykawartha.com/news-story/10292278-get-ready-peterborough-the-parkhill-road-roundabout-is-open/
West Lincoln, ON Niagara Canada	Regional Road 20 / S Grimsby Road 6 (43.11010, -79.56042)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2020	https://niagararegion.ca/projects/regional-road-20/default.aspx
West Lincoln, ON Niagara Canada	Regional Road 20 (St Catharines St.) / Townline Rd. (43.09175, -79.53404)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2020	https://niagararegion.ca/projects/regional-road-20/default.aspx
Lakeshore, ON Essex Canada	Hwy 22 (Notre Dame St.) / W Belle River Rd. (42.29336, -82.71370)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2019	https://www.iheartradio.ca/am800/news/no-more-detour-headaches-in-belle-river-1.9347922
Wellesley, ON Waterloo Canada	Ament Line / Herrgott Rd. (43.55994, -80.64612)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2018	https://www.newhamburgindependent.ca/news-story/8660450-wellesley-township-roundabout-construction-begins-next-week/. Year Completed estimated (2018-2019).
Cambridge, ON Waterloo Canada	Myers Rd. / Franklin Blvd. (43.34326, -80.28711)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.3777	Other (At-Grade) Single-Lane	2018	https://www.kitchenertoday.com/local-news/part-of-franklin-now-closed-in-cambridge-for-roundabout-work-973622 ICD estimated from Google Maps linework.
Toronto, ON Toronto Canada	Windermere Ave. / St Olaves Rd. / Coe Hill Dr. / Budgell Terr. (43.64157, -79.47476)	Other Existing	Other None	5 Approaches 1 Driveways 30.2505	Other (At-Grade) Single-Lane		One entry has a stop sign; another has no splitter island. ICD estimated from Google Maps linework.
Oakville, ON Halton Canada	Parkglen Ave. / Kingsridge Dr. (43.44523, -79.75763)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.2862	Other (At-Grade) Single-Lane	2003	Year Completed estimated (before 2004). ICD estimated from Google Maps linework.
Ajax, ON Durham Canada	Pickering Beach Rd. / Foord Rd. / Rollo Dr. (43.83683, -79.00444)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 17.2297	Other (At-Grade) Single-lane w/ Traversable Central Island	2007	https://www.durhamregion.com/news-story/3476434-roundabouts-bring-calls-both-good-and-bad/ ICD estimated from Google Maps linework.
Ajax, ON Durham Canada	Pickering Beach Rd. / Dreyer Dr. / Beachview St. (43.83085, -79.00187)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 20.6778	Other (At-Grade) Single-lane w/ Traversable Central Island	2007	https://www.durhamregion.com/news-story/3476434-roundabouts-bring-calls-both-good-and-bad/ ICD estimated from Google Maps linework.
King City, ON York Canada	Lloydtown-Aurora Rd. (Hwy 16) / Keele St. (Hwy 6) (44.00132, -79.54751)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.9554	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Whitchurch-Stouffville, ON York Canada	Mantle Ave. / Yakefarm Blvd. (43.96608, -79.22303)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.7886	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Whitchurch-Stouffville, ON York Canada	Mantle Ave. / Sunnyridge Ave. (43.96521, -79.22663)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 23.2101	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Whitchurch-Stouffville, ON York Canada	10th Line / Mantle Ave. (43.96457, -79.22970)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 12.8946	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2009-2011 streetview) ICD estimated from Google Maps linework.
Whitchurch-Stouffville, ON York Canada	Hoover Park Dr. / Salix Ave. / Greendale Ave. (43.97037, -79.22233)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.2249	Other (At-Grade) Single-Lane	2011	Year Completed estimated (2009-2015). ICD estimated from Google Maps linework.
Whitchurch-Stouffville, ON York Canada	Hoover Park Dr. / 10th Line (43.96791, -79.23045)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 17.1919	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2009-2011 - streetview) ICD estimated from Google Maps linework.
Whitchurch-Stouffville, ON York Canada	Forsyth Farm Dr. / Flute St. / Penndutch Cir. (43.98297, -79.23744)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 25.7812	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Whitchurch-Stouffville, ON York Canada	Baker Hill Blvd. / Brownsberger Rd. (43.97580, -79.27341)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.3628	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Whitchurch-Stouffville, ON York Canada	Millard St. / Baker Hill Blvd. (43.97001, -79.27600)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.3486	Other (At-Grade) Single-Lane	2009	Year Completed estimated (2005-2009). ICD estimated from Google Maps linework.
Markham, ON York Canada	Angus Glen Blvd. / Berkshire Crescent / Glengordon Crescent (43.89220, -79.33385)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 27.5420	Other (At-Grade) Single-Lane	2009	Usable in 2009; finished 2016. ICD estimated from Google Maps linework.
Vaughan, ON York Canada	Cranston Park Ave. / Melville Ave. / Drummond Dr. (43.86528, -79.52939)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.8598	Other (At-Grade) Single-Lane	2000	Year Completed estimated (before 2002). ICD estimated from Google Maps linework.
Vaughan, ON York Canada	Chatfield Dr. / Lawford Rd. (43.84833, -79.56816)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.9783	Other (At-Grade) Single-Lane	2011	Unfinished but usable in 2011; somewhat better but still unfinished in 2014 (streetview). ICD estimated from Google Maps linework.
Brampton, ON Peel Canada	Elbern Markell Dr. / Bear Run Rd. / Dalmeny Dr. (43.66095, -79.80706)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 30.2408	Other (At-Grade) Single-Lane	2009	Year Completed estimated (2009-2010). ICD estimated from Google Maps linework.
Brampton, ON Peel Canada	Elbern Markell Dr. / Fort William Dr. (43.65595, -79.80336)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 30.2433	Other (At-Grade) Single-Lane	2009	Year Completed estimated (2009-2010). ICD estimated from Google Maps linework.
Brampton, ON Peel Canada	Royal West Dr. / Adamsville Rd. (43.65220, -79.80625)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 33.7018	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Brampton, ON Peel Canada	Royal West Dr. / Beacon Hill Dr. (43.65527, -79.81000)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.5642	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Brampton, ON Peel Canada	Longevity Rd. / Settlers Field Rd. (43.65233, -79.81352)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 29.3810	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.