Roundabouts Database Index

29867 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
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).
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	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.
Kitchener, ON Waterloo Canada	Doon S Dr. / Doon Mills Dr. / Chestnut Hill Crescent (43.38216, -80.42836)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 29.5128	Other (At-Grade) Single-Lane	2003	Year Completed estimated (before 2005). ICD estimated from Google Maps linework.
Kitchener, ON Waterloo Canada	Thomas Slee Dr. / Robert Ferrie Dr. (43.37616, -80.42419)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.7244	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2006-2009). ICD estimated from Google Maps linework.
Kitchener, ON Waterloo Canada	Robert Ferrie Dr. / Evens Pond Crescent / S Creek Dr. (43.37790, -80.44337)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.7234	Other (At-Grade) Single-Lane	2010	Year Completed estimated (2009-2011). ICD estimated from Google Maps linework.
Kitchener, ON Waterloo Canada	Huron Rd. / Strasburg Rd. (43.39217, -80.46629)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 51.2050	Other (At-Grade) Multilane (2 Lane, unspecified)	2011	Year Completed estimated (2010-2012). ICD estimated from Google Maps linework.
Kitchener, ON Waterloo Canada	Huron Rd. / Woodbine Ave. (43.38310, -80.48326)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 45.1366	Other (At-Grade) Multilane (2 Lane, unspecified)	2012	Year Completed estimated (2011-2012). ICD estimated from Google Maps linework.
Belleville, ON Hastings Canada	Maitland Dr. / Farnham Rd. / Moira Lea Ct. (44.20636, -77.39405)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.6699	Other (At-Grade) Single-Lane	2019	https://belleville.ca/roundabouts ICD estimated from Google Maps linework.
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/
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).
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).
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).
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
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
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/
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/
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
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).
Brant, ON Brant Canada	Rest Acres Rd. / Powerline Rd. (43.16946, -80.38027)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 50.0000	Other (At-Grade) Single-Lane	2018	Year Completed estimated (2018-2019).
Waterloo, ON Waterloo Canada	Platinum Dr. / Copper St. / Titanium St. (south) (43.44573, -80.58208)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2021
Waterloo, ON Waterloo Canada	Platinum Dr. / Copper St. / Titanium St. (north) (43.44817, -80.58553)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2021
Waterloo, ON Waterloo Canada	Columbia St. W / Platinum Dr. / Ladyslipper Dr. (43.44950, -80.58669)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways	Other (At-Grade) Single-Lane	2021	Year Completed estimated (2018-2021).
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.
Ottawa, ON Ottawa Canada	Robert Grant Ave. / Cope Dr. (45.26831, -75.89020)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 42.0277	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Ottawa, ON Ottawa Canada	Robert Grant Ave. / Bobolink Ridge (45.27034, -75.89213)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 43.7072	Other (At-Grade) Single-Lane	2016	ICD estimated from Google Maps linework.
Ottawa, ON Ottawa Canada	Robert Grant Ave. / Abbott St. E (45.27428, -75.89569)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 42.8637	Other (At-Grade) Single-Lane	2016	Only two approaches upon initial opening in 2016. ICD estimated from Google Maps linework.
Ottawa, ON Ottawa Canada	Bridgestone Dr. / Foxhall Way (45.28613, -75.85775)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 14.2849	Other (At-Grade) Single-Lane	2016	Temporary signs, markers, and curbs instead of permanent features. ICD estimated from Google Maps linework.
Ottawa, ON Ottawa Canada	Cedarview Rd. / Jockvale Rd. (45.27494, -75.77762)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 24.3732	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Ottawa, ON Ottawa Canada	Longfields Dr. / Beatrice Dr. / Mountshannon Dr. (45.28857, -75.73400)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 26.0479	Other (At-Grade) Single-Lane	2014	ICD estimated from Google Maps linework.
Ottawa, ON Ottawa Canada	Goulbourn Forced Rd. / Badgeley Ave. (45.32371, -75.92870)	Roundabout Existing	All-Way Yield None	3 Approaches 0 Driveways 26.0317	Other (At-Grade) Single-Lane	2011	ICD estimated from Google Maps linework.
Ottawa, ON Ottawa Canada	King Edward Ave. / Union St. (45.43738, -75.69400)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 20.9512	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Ottawa, ON Ottawa Canada	Anderson Rd. / Weir Rd. / Renaud Rd. (45.41979, -75.56765)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 39.4005	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	ICD estimated from Google Maps linework.
Ottawa, ON Ottawa Canada	Old Montreal Rd. / St.Joseph Blvd. / Trim Rd. (45.48900, -75.47775)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.3285	Other (At-Grade) Multilane (2 Lane, unspecified)	2015	ICD estimated from Google Maps linework.
Ottawa, ON Ottawa Canada	Brian Coburn Blvd. / Portobello Blvd. (45.45470, -75.46491)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 34.3494	Other (At-Grade) Single-Lane	2016	Right-turn-only lane on north leg. ICD estimated from Google Maps linework.
Ottawa, ON Ottawa Canada	Brian Coburn Blvd. / Fern Casey St. (45.44112, -75.50947)	Roundabout Existing	All-Way Yield None	4 Approaches 0 Driveways 37.7096	Other (At-Grade) 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.
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.
Ajax, ON Durham Canada	Williamson Dr. E / Thackery Dr. (43.89065, -79.03319)	Roundabout Existing	All-Way Yield Unknown	2 Approaches 0 Driveways 34.4284	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Ajax, ON Durham Canada	Williamson Dr. E / Middlecote Dr. (43.89247, -79.03166)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 32.7060	Other (At-Grade) Single-Lane	2006	ICD estimated from Google Maps linework.
Ajax, ON Durham Canada	Williamson Dr. E / Gillett Dr. (43.89564, -79.02358)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 30.9830	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2004-2009). ICD estimated from Google Maps linework.
Ajax, ON Durham Canada	Boyd Crescent / Ryder Crescent (43.90018, -79.01309)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 32.7017	Other (At-Grade) Single-Lane	2005	ICD estimated from Google Maps linework.
Vaughan, ON York Canada	S Park Rd. / S Park Rd. (43.83875, -79.39747)	Other Existing	Unknown None	2 Approaches 0 Driveways 40.0000	Other (At-Grade) Single-Lane	1998	Year Completed estimated (before 2002)
Richmond Hill, ON York Canada	Jefferson Forest Dr. / Arden Valley St. (43.91533, -79.44181)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 23.2295	Other (At-Grade) Single-Lane	2003	Year Completed estimated (2002-2005). ICD estimated from Google Maps linework.
Richmond Hill, ON York Canada	Jefferson Forest Dr. / Shadow Falls Dr. (43.91635, -79.43746)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 20.6481	Other (At-Grade) Single-Lane	2003	Year Completed estimated (2002-2005). ICD estimated from Google Maps linework.
Richmond Hill, ON York Canada	Jefferson Forest Dr. / Mancini Crescent / Magdalene Crescent (43.91246, -79.43237)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 27.5326	Other (At-Grade) Single-Lane	2009	ICD estimated from Google Maps linework.
Richmond Hill, ON York Canada	Rothbury Rd. / Ridgestone Dr. / Tentone Ct. (43.90050, -79.45136)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 24.0959	Other (At-Grade) Single-Lane	2011	Year Completed estimated (2009-2013). ICD estimated from Google Maps linework.
Toronto, ON Toronto Canada	Trailer Dr (43.80549, -79.13682)	Other Existing	Unknown Unknown	4 Approaches 0 Driveways 75.8507	Other (At-Grade) Single-Lane		ICD estimated from Google Maps linework.
Oshawa, ON Durham Canada	Britannia Ave. / Bridle Rd. (43.95601, -78.89312)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 36.9699	Other (At-Grade) Single-Lane	2013	ICD estimated from Google Maps linework.
Oshawa, ON Durham Canada	Northern Dancer Dr. / Hackett Pl. / Solar Pl. (43.95353, -78.89052)	Roundabout Existing	All-Way Yield Unknown	3 Approaches 0 Driveways 30.0930	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2005-2009). ICD estimated from Google Maps linework.
Oshawa, ON Durham Canada	Bridle Rd. / Northern Dancer Dr. (43.95341, -78.89266)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 34.3921	Other (At-Grade) Single-Lane	2007	Year Completed estimated (2005-2009). ICD estimated from Google Maps linework.
Oshawa, ON Durham Canada	Secretariat Ave. / Woodbine Ave. (43.95049, -78.89431)	Roundabout Existing	All-Way Yield Unknown	4 Approaches 0 Driveways 32.6741	Other (At-Grade) Single-Lane	2006	Year Completed estimated (2005=2009). ICD estimated from Google Maps linework.