Roundabouts Database Index

29411 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
Milton, ON Halton Canada	Tremaine Rd. / Louis Saint Laurent Ave. (43.47633, -79.87020)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 58.0672	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	ICD estimated from Google Maps linework.
Milton, ON Halton Canada	Tremaine Rd. / Britannica Rd. W (43.46689, -79.85672)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 52.8754	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	Replaced offset T-intersections. ICD estimated from Google Maps linework.
Georgetown, ON Halton Canada	10 Sideroad / Tenth Line N (43.63791, -79.86267)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 40.6246	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Milton, ON Halton Canada	Louis Saint Laurent Ave. / Yates Dr. (43.50033, -79.84411)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 40.7175	Other (At-Grade) Multilane (2 Lane, unspecified)	2018	Fourth leg stubbed off. ICD estimated from Google Maps linework.
Toronto, ON Toronto Canada	Port Union Rd. / Bridgend St. (43.77682, -79.13549)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 31.0447	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Markham, ON York Canada	Swan Lake Blvd. / Lakeside Vista Way. (43.89623, -79.25077)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 38.0000	Other (At-Grade) Single-Lane	2001	Year Completed estimated (2000-2001).
Markham, ON York Canada	Wilfred Murison Ave / William Berczy Blvd (43.88681, -79.30799)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.4560	Other (At-Grade) Single-Lane	2015	Previously a traffic circle ICD estimated from Google Maps linework.
Markham, ON York Canada	Wilfred Murison Ave. / Harbord St. (43.88567, -79.31277)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 25.8235	Other (At-Grade) Single-Lane	2014	Year Completed estimated (2013-2015). ICD estimated from Google Maps linework.
Markham, ON York Canada	William Berczy Blvd. / Beckett Ave. (43.88444, -79.30585)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 39.5968	Other (At-Grade) Single-Lane	2012	ICD estimated from Google Maps linework.
Markham, ON York Canada	Harbord St. / Beckett Ave. (43.88279, -79.31197)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 26.6855	Other (At-Grade) Single-Lane	2014	Year Completed estimated (2013-2015). ICD estimated from Google Maps linework.
Mississauga, ON Peel Canada	Duke of York Blvd. / Square One Dr. (43.59181, -79.64742)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 32.0056	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Mississauga, ON Peel Canada	Hazelton Pl. / Plantation Pl. (43.55342, -79.71753)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 13.8491	Other (At-Grade) Single-Lane	2015	Year Completed estimated (2013-2015). ICD estimated from Google Maps linework.
Wasaga Beach, ON Simcoe Canada	Ontario Hwy 26 / Mosley St. / Nottawasaga 33 / 34 Sideroad (44.46184, -80.11301)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 56.2592	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	ICD estimated from Google Maps linework.
Wasaga Beach, ON Simcoe Canada	Mosley St. / Beachwood Rd. / Lyons Ct. (44.46671, -80.10777)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 62.2209	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	ICD estimated from Google Maps linework.
Collingwood, ON Simcoe Canada	Hwy 26 E / Poplar Sideroad (44.48718, -80.17379)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 50.2705	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	ICD estimated from Google Maps linework.
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.
Perth South, ON Perth Canada	Hwy 7 / Line 19 (43.24750, -81.08493)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 41.7576	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Perth South, ON Perth Canada	Road 119 / County Rd 9 (43.27026, -81.06800)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 43.4812	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Perth South, ON Perth Canada	Ontario Hwy 7 / Line 20 (43.30862, -81.03567)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.5012	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Guelph, ON Wellington Canada	Ontario Hwy 7 / Jones Baseline (43.57942, -80.18623)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.0122	Other (At-Grade) Single-Lane	2017	ICD estimated from Google Maps linework.
Waterloo, ON Waterloo Canada	Ira Needles Blvd. / Thorndale Dr. (43.44178, -80.56523)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 41.6242	Other (At-Grade) Multilane (2 Lane, unspecified)	2016	ICD estimated from Google Maps linework.
Kitchener, ON Waterloo Canada	Ira Needles Blvd. / The Boardwalk (43.43540, -80.55823)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 45.0976	Other (At-Grade) Multilane (2 Lane, unspecified)	2010	ICD estimated from Google Maps linework.
Waterloo, ON Waterloo Canada	Erb St. W / Turtle Island Recycling / Costco parking lot (43.44386, -80.57867)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 41.6227	Other (At-Grade) Multilane (2 Lane, unspecified)	2016	ICD estimated from Google Maps linework.
Waterloo, ON Waterloo Canada	Erb St. W / Platinum Dr. / (landfill) (43.44326, -80.58032)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 55.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2016
Whitchurch-Stouffville, ON York Canada	Reeves Way Blvd. / Richard Underhill Ave. (43.96117, -79.24228)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 26.6504	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2005-2009). ICD estimated from Google Maps linework.
Zorra, ON Oxford Canada	Dundas St. (Road 68) / 37th Line (43.09715, -80.87243)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 34.0117	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Woodstock, ON Oxford Canada	Oxford Rd 17 / Oxford Rd 59 (43.15721, -80.77425)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 30.4933	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Woodstock, ON Oxford Canada	Ridgewood Dr. / Lakeview Dr. / Eastview Ave. (43.15562, -80.76566)	Other Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 41.8205	Other (At-Grade) Single-Lane	2007	No splitter islands. Year Completed estimated (2006-2009). ICD estimated from Google Maps linework.
Cambridge, ON Waterloo Canada	Franklin Blvd. / Dundas S.t S (43.35462, -80.28745)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 41.6841	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	ICD estimated from Google Maps linework.
Cambridge, ON Waterloo Canada	Franklin Blvd. / Champlain Blvd. (43.34840, -80.28853)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 40.8199	Other (At-Grade) Multilane (2 Lane, unspecified)	2017	Year Completed estimated (2016-2018). ICD estimated from Google Maps linework.
Cochrane, ON Cochrane Canada	Railway St. / 3rd St. / 3rd Ave. (49.06187, -81.02975)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2017
Whitby, ON Durham Canada	Nichol Ave. / Adanac Dr. / Benjamin Way (43.88209, -78.91664)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 30.1292	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Windsor, ON Essex Canada	Rte 3 (Malden Rd.) / Rte 6 (Todd Ln.) (42.25147, -83.06051)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 39.7819	Other (At-Grade) Single-Lane	2011	Year Completed estimated (2010-2015). 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.
Kenora, ON Kenora Canada	Hwy 17 (Lakeview Dr.-Main St.) / Bernier Dr. / Veterans Dr. (49.76952, -94.49034)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.0259	Other (At-Grade) Single-Lane	2008	http://wilcosuperior.ca/project/big-spruce-project-stage-1 ICD estimated from Google Maps linework.
Trenton, ON Hastings Canada	Hwy 33 (Trenton-Frankfort Rd. - Trenton St.) / Telephone Rd. / Stockdale Rd. (44.11770, -77.59804)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.7266	Other (At-Grade) Single-Lane	2011	https://activerain.com/blogsview/2514745/trenton-gets-a-roundabout ICD estimated from Google Maps linework.
Trenton, ON Hastings Canada	Hwy 22 (Hamilton Rd.) / RCAF Rd. (44.13179, -77.55946)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 27.4310	Other (At-Grade) Single-Lane	2014	https://www.northumberlandnews.com/news-story/4738842-second-roundabout-under-way/ ICD estimated from Google Maps linework.
Kingsville, ON Essex Canada	Albuna Townline (County Rd 31) / Road 3 E (42.06096, -82.64340)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.9019	Other (At-Grade) Single-Lane	2010	https://www.infrastructure.gc.ca/media/news-nouvelles/2010/20101112essexcounty-eng.html ICD estimated from Google Maps linework.
Essex, ON Essex Canada	Maidstone Ave. E (CR 8) / CR 23 (42.17719, -82.80347)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 41.5989	Other (At-Grade) Single-Lane	2010	https://www.infrastructure.gc.ca/media/news-nouvelles/2010/20101112essexcounty-eng.html ICD estimated from Google Maps linework.
Windsor, ON Essex Canada	Laurier Pkwy. / Mike Raymond Dr. (42.22251, -83.04987)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 53.9514	Other (At-Grade) Single-Lane	2011	Fourth approach stubbed. Year Completed estimated (2009-2012). ICD estimated from Google Maps linework.
Cobourg, ON Northumberland Canada	D'Arcy St. / (community center parking) (43.97234, -78.16030)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.3811	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2009-2011 - streetview). ICD estimated from Google Maps linework.
Cobourg, ON Northumberland Canada	D'Arcy St. / (community center and park access) (43.97548, -78.16171)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 32.6604	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2009-2011 - streetview). ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Brookfield Rd. / Flannery Dr. (45.37364, -75.68420)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.7886	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	Functional Class: Major Collector ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Bridgestone Dr. / Steeple Chase Dr. / Stonehaven Dr. (45.29100, -75.85860)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.5674	Other (At-Grade) Single-Lane	2012	Functional Class: Major Collector ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Brian Coburn Blvd. / Trim Rd. (45.45820, -75.44730)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 74.5586	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	Functional Class: Arterial ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Cambrian Rd. / Greenbank Rd. (45.25322, -75.73580)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.9942	Other (At-Grade) Single-Lane	2011	Functional Class: Arterial ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Jeanne d'Arc Blvd. / St. Joseph Blvd. (45.46416, -75.54010)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 36.8565	Other (At-Grade) Multilane (2 Lane, unspecified)	2010	Functional Class: Arterial ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Kanata Ave. / Keyrock Dr. / Stikine Dr. (45.32025, -75.92750)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.5527	Other (At-Grade) Single-Lane	2011	Functional Class: Major Collector ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Millenium Blvd. / Trim Rd. (45.46557, -75.45140)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 45.2319	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	Previously controlled by two-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Berrigan Dr. / Longfields Dr. (45.27827, -75.74160)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.0526	Other (At-Grade) Single-Lane	2013	Functional Class: Major Collector ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Longfields Dr. / Cambrian Rd. / Golflinks Dr. (45.25633, -75.72810)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.0000	Other (At-Grade) Multilane (2 Lane, 2x2 max)	2013	Yield-controlled right-turn bypass lane on north leg.
Kemptville, ON United Counties of Leeds and Grenville Canada	CR 43 / Pinehill Rd. (45.01836, -75.65872)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 32.0814	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Kemptville, ON United Counties of Leeds and Grenville Canada	CR 43 / (Colonnade entrance) (45.03069, -75.63316)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 43.0473	Other (At-Grade) Multilane (2 Lane, unspecified)	2009	ICD estimated from Google Maps linework.
Odessa, ON Lennox and Addington Canada	CR 2 / CR 4 (44.26179, -76.77489)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 38.4898	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Princess Ave. / Rockcliffe Pkwy. (45.44599, -75.68909)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 54.4647	Other (At-Grade) Single-Lane	2007	ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Beaulieu Pl. / Villeneuve Private (45.42574, -75.62828)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 20.1173	Other (At-Grade) Single-Lane	2006	Functional Class: Local ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Beauparc Private / Villeneuve Private (45.42353, -75.62725)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 22.6328	Other (At-Grade) Single-Lane	2006	Functional Class: Local ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Jockvale Rd. / Fable St. / Weybridge Dr. (45.27378, -75.76441)	Roundabout Existing	All-Way Yield Active Pedestrian Warning (flashing yellow)	4 Approaches 0 Driveways 32.7784	Other (At-Grade) Single-Lane	2007	Functional Class: Major Collector ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Huntmar Rd. / Rosehill Ave. (45.28658, -75.91740)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.4516	Other (At-Grade) Single-Lane	2007	Functional Class: Major Collector ICD estimated from Google Maps linework.
Waterloo, ON Waterloo Regional Municipality Canada	Ira Needles Blvd. / Erb St. (43.44632, -80.57117)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 49.4250	Other (At-Grade) Multilane (2 Lane, unspecified)	2004	Fishhook pavement markings. Series of five roundabouts. Functional Class: Arterial ICD estimated from Google Maps linework.
Woolwich, ON Waterloo Regional Municipality Canada	Arthur St. / Sawmill Rd. (43.54355, -80.54693)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 60.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2006
Kitchener, ON Waterloo Regional Municipality Canada	Ira Needles Blvd. / Highland Rd. (43.42294, -80.55246)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 83.2743	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Fishhook pavement markings. Series of five roundabouts. ICD estimated from Google Maps linework.
Kitchener, ON Waterloo Regional Municipality Canada	Ira Needles Blvd. / Highview Dr. (43.41460, -80.55273)	Roundabout Existing	Unknown Unknown	3 Approaches 0 Driveways 45.1131	Other (At-Grade) Multilane (2 Lane, unspecified)	2006	Fishhook pavement markings. Series of five roundabouts. ICD estimated from Google Maps linework.
Cambridge, ON Waterloo Regional Municipality Canada	Fountain St. / Blair Rd. (43.38601, -80.38981)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane	2005
Cambridge, ON Waterloo Regional Municipality Canada	Can-Amera Pkwy. / Conestoga Blvd. (43.39012, -80.31281)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 50.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2005
Kitchener, ON Waterloo Regional Municipality Canada	Ira Needles Blvd. / Victoria St. S. (43.42872, -80.55302)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 46.8373	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	Fishhook pavement markings. Series of five roundabouts. ICD estimated from Google Maps linework.
Kitchener/Waterloo, ON Waterloo Regional Municipality Canada	Ira Needles Blvd. / University Ave. (43.43700, -80.55984)	Roundabout Existing	Unknown Unknown	4 Approaches 0 Driveways 53.7688	Other (At-Grade) Multilane (2 Lane, unspecified)	2007	Fishhook pavement markings. Series of five roundabouts. ICD estimated from Google Maps linework.
Kitchener, ON Waterloo Regional Municipality Canada	Fischer-Hallman Rd. / Huron Rd. (43.38225, -80.48878)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 50.0000	Other (At-Grade) Single-Lane	2007
Kitchener, ON Waterloo Regional Municipality Canada	Fischer-Hallman Rd. / Seabrook Dr. (43.38706, -80.49034)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 19.0946	Other (At-Grade) Single-Lane	2007	Sized as double-lane but striped as single-lane with yellow spiral hatching next to truck apron. ICD estimated from Google Maps linework.
Guelph, ON Wellington County Canada	Summerfield Dr. / Colonial Dr. (43.51809, -80.18253)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.4466	Other (At-Grade) Single-Lane	2001	Located in Pine Ridge East residenital subdivision Functional Class: Collector 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.
Ottawa, ON City of Ottawa Canada	Bayview Rd. / Slidell St. / Burnside Ave. (45.40958, -75.72880)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 33.5384	Other (At-Grade) Single-Lane	2010	Functional Class: Collector ICD estimated from Google Maps linework.
Ancaster, ON Hamilton Canada	Wilson St. / Meadowbrook Dr. / Hamilton Dr. (43.20797, -80.00224)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.6911	Other (At-Grade) Single-Lane	2002	ICD estimated from Google Maps linework.
Markham, ON York Region Canada	Prospectors Dr. / Angus Glen Blvd. (43.89075, -79.31981)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.2641	Other (At-Grade) Single-Lane	2004	Functional Class: Local ICD estimated from Google Maps linework.
Markham, ON York Region Canada	Prospectors Dr. / The Fairways (43.89400, -79.32079)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.0985	Other (At-Grade) Single-Lane	2004	Functional Class: Local ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Bill Leathem Dr. / Longfields Dr. (45.29652, -75.71490)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 34.4456	Other (At-Grade) Single-Lane	2010	Functional Class: Major Collector ICD estimated from Google Maps linework.
Waterloo, ON Regional Municipality of Waterloo Canada	Townline Rd. / Can-Amera Pkwy. (43.41154, -80.28042)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 60.0000	Other (At-Grade) Multilane (2 Lane, unspecified)	2003	Year Completed estimated (2002-2004).
Ottawa, ON City of Ottawa Canada	Cresthaven Dr. / Waterbridge Dr. (45.28097, -75.70818)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 43.6990	Other (At-Grade) Single-Lane	2001	Minimal splitter islands. ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Cresthaven Dr. / Fairpark Dr. / Timberline Private (45.27486, -75.70937)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 48.7465	Other (At-Grade) Single-Lane	2002	Minimal splitter islands. Functional Class: Local ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Ruskin St. / Melrose Ave. / Reid Ave. / Laurentian Pl. (45.39478, -75.71996)	Roundabout Existing	All-Way Yield Unknown	5 Approaches 0 Driveways 31.0311	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Jockvale Rd. / Exeter Dr. / Tartan Dr. (45.27044, -75.75439)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.9398	Other (At-Grade) Single-Lane	2005	Met warrants for signals. Functional Class: Major Collector ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Kilborn Ave. / Lamira St. (45.38604, -75.67085)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 28.5195	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Prince of Wales Dr. / National Capital Com Driveway (45.39028, -75.70744)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 40.2598	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	Converted old circle. ICD estimated from Google Maps linework.
Ottawa, ON City of Ottawa Canada	Sussex Dr. / Rideau Gate (45.44456, -75.69254)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 24.3003	Other (At-Grade) Single-Lane	2001	ICD estimated from Google Maps linework.
Kemptville, ON United Counties of Leeds and Grenville Canada	CR 43 / Rideau River Rd. (45.02990, -75.63668)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 35.0000	Other (At-Grade) Single-Lane	2000	Year Completed estimated (before 2004). ICD estimated from Google Maps linework.
Markham, ON Durham Canada	York Durham Line / Durham 5 / Regional Road 30 (43.95328, -79.21416)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.4108	Other (At-Grade) Single-Lane	2012	Year Completed estimated (2009-2014). ICD estimated from Google Maps linework.
St Catharines, ON Niagara Canada	7th Street Louth / Queen Elizabeth Way WB Ramps (43.18086, -79.30892)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.9324	Freeway Ramps (Grade-Separated) Single-Lane	2016	Right-turn bypass lane on east leg. ICD estimated from Google Maps linework.
St Catharines, ON Niagara Canada	7th Street Louth / Queen Elizabeth Way EB Ramps (43.17822, -79.30900)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 36.5794	Freeway Ramps (Grade-Separated) Single-Lane	2016	ICD estimated from Google Maps linework.
Ottawa, ON Ottawa Canada	Trim Rd. / Dairy Dr. / Taylor Creek Dr. (45.49178, -75.47980)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 34.3268	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	ICD estimated from Google Maps linework.
Picton, ON Prince Edward Canada	Loyalist Pkwy. / Sandy Hook Rd. (43.99449, -77.17838)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 40.3828	Other (At-Grade) Single-Lane	2009	This was the first highway roundabout in Ontario. Constructed in 2009. https://www.auto123.com/en/news/ontarios-first-roundabout-intersection-opens-near-picton/5652/ ICD estimated from Google Maps linework.
Bowmanville, ON Durham Canada	Holt Rd. / Hwy 401 WB Ramps (43.88557, -78.72295)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 40.4568	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2016	ICD estimated from Google Maps linework.
Bowmanville, ON Durham Canada	Holt Rd. / Hwy 401 EB Ramps (43.88303, -78.72186)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 37.8761	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2016	ICD estimated from Google Maps linework.
Bowmanville, ON Durham Canada	Holt Rd. / Energy Dr. (43.88136, -78.72109)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 47.3464	Other (At-Grade) Multilane (2 Lane, unspecified)	2016	ICD estimated from Google Maps linework.
Whitchurch-Stouffville, ON York Canada	Ninth Line / Bayberry St. / Baker Hill Blvd. (43.98000, -79.25804)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 32.6579	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Welland, ON Niagara Canada	Hwy 27 (E Main St.) / Hwy 406 (42.99357, -79.22298)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 57.6555	Other (At-Grade) Multilane (3+ Lane)	2013	Year Completed estimated (2010-2015). 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.
Oldcastle, ON Essex Canada	Hwy 9 / Hwy 3 / Hwy 401 WB Ramps / Hwy 401 EB Ramps (42.23142, -82.99124)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 60.1340	Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified)	2012	Year Completed estimated (2009-2014). ICD estimated from Google Maps linework.
Ottawa, ON Ottawa Canada	Campeau Dr. / Huntmar Dr. (45.30107, -75.93574)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 46.2038	Other (At-Grade) Multilane (2 Lane, unspecified)	2014	Right-turn-only lanes on northwest, northeast, and southeast legs. Channelized right-turn bypass lane on southwest leg. Three-lane pedestrian crossings on three legs. ICD estimated from Google Maps linework.
Ottawa, ON Ottawa Canada	Campeau Dr. / Palladium Dr. (45.29718, -75.94220)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.4859	Other (At-Grade) Multilane (2 Lane, unspecified)	2016	ICD estimated from Google Maps linework.
Ottawa, ON Ottawa Canada	Fernbank Rd. / Shea Rd. (45.25710, -75.89707)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 31.9474	Other (At-Grade) Single-Lane	2014	Replaces offset T intersections. ICD estimated from Google Maps linework.