Roundabouts Database

29410 Results

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City, State
County
Country 		Intersection
(Lat, Lng) 		Type
Status 		Control Type / Other Control Type Approaches / Driveways / ICD (m) Functional Class /
LaneType 		Year Completed Comments
Bend, OR
Deschutes Co.
United States 		NW Crossing Dr. / Lemhi Pass Rd.
(44.06210, -121.34600) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
31.7544 		Other (At-Grade)
Single-Lane 		2006 New roads as part of NW Crossing Development ICD estimated from Google Maps linework.
Bend, OR
Deschutes Co.
United States 		NW Crossing Dr. / Shevlin Park Road
(44.06410, -121.34480) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.3280 		Other (At-Grade)
Single-Lane 		2006 Intersection as part of NW Crossing Development. Connection to existing NW Shevlin Park Road. ICD estimated from Google Maps linework.
Estero, FL
Lee Co.
United States 		Williams Rd. / Chapel Trace
(26.41990, -81.83160) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
29.9485 		Other (At-Grade)
Single-Lane 		2006 Near Estero High School. ICD estimated from Google Maps linework.
Cape Coral, FL
Lee Co.
United States 		SE 24th Ave. / SE 9th St. / Birkdale Ave.
(26.63679, -81.92426) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
24.5541 		Other (At-Grade)
Single-Lane 		2002 Originally two stop-controlled, offset T-intersections. Now is a hotdog/racetrack-shaped roundabout. Date estimated. ICD estimated from Google Maps linework.
Middletown, NJ
Monmouth Co.
United States 		Newman Springs Rd. (CR 520) / College Dr.
(40.33204, -74.13175) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.7760 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2007 Entrance to Brookdale Community College and Lincroft Bible Church. Expected opening August 2007. ICD estimated from Google Maps linework.
Branson, MO
Taney Co.
United States 		Branson Landing Blvd. / Veterans Blvd. / Skaggs Rd. / Parnell Dr.
(36.64981, -93.21976) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
63.2418 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 Near Skaggs Community Health Center Hospital. Veterans Boulevard was formerly Business 65 but was transferred from MoDOT to the city. Cost of roundabout was $1.9 million. News article: http://www.news-leader.com/apps/pbcs.dll/article?Date=20060324&Category=NEWS02&ArtNo=603240360&SectionCat=&Template=printart ICD estimated from Google Maps linework.
Howard, WI
Brown Co.
United States 		Belmont Rd. / Belle Plane Rd.
(44.58361, -88.09459) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
22.9671 		Other (At-Grade)
Single-Lane 		2000 Roundabout was constructed in center of residential subdivision south of Lineville Road. Roundabout is slightly smaller than the Lineville roundabouts. Completed August 2000. http://www.co.brown.wi.us/Planning/roundabouts.html Functional Class: Local ICD estimated from Google Maps linework.
Howard, WI
Brown Co.
United States 		Velp Ave. (CTH HS) / Woodale Ave. (CTH EB)
(44.57293, -88.07800) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.3300 		Other (At-Grade)
Single-Lane 		2002 Roundabout Located near industrial park, rail line, and the Mountain-Bay Recreational Trail. Roundabout is at the intersection of two county highways and is slightly larger than the roundabouts built in 1999 and 2001 in Howard and De Pere. Completed August 2002. http://www.co.brown.wi.us/Planning/roundabouts.html. Fatal crash June 5, 2011. 11861-05. Functional Class: Arterial ICD estimated from Google Maps linework.
De Pere, WI
Brown Co.
United States 		Grant St. (CTH EE) / S 9th St.
(44.44506, -88.09000) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
26.4324 		Other (At-Grade)
Single-Lane 		2003 Roundabout located within residential neighborhood that also contains a few small businesses and a fire station. One of the fire station driveways directly accesses the roundabout. Completed August 2003. http://www.co.brown.wi.us/Planning/roundabouts.html ICD estimated from Google Maps linework.
De Pere, WI
Brown Co.
United States 		Scheuring Rd. (CTH F) / Suburban Dr.
(44.43055, -88.08604) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.4090 		Other (At-Grade)
Single-Lane 		2004 One of two roundabouts on an arterial street that separates a residential neighborhood from a business park. Many trucks traveling to and from the business park pass through this intersection each day, and the roundabout serves as an attractive entrance to the neighborhood and park. Completed November 2004. http://www.co.brown.wi.us/Planning/roundabouts.html. Series of 6 roundabouts. Opened November 2004. Functional Class: Arterial ICD estimated from Google Maps linework.
De Pere, WI
Brown Co.
United States 		Scheuring Rd. (CTH F) / S 9th St. / W Matthew Dr.
(44.43063, -88.09529) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.8205 		Other (At-Grade)
Single-Lane 		2004 Second of two roundabouts on an arterial street separating residential neighborhood from a business park. Many trucks pass through this intersection each day. Completed November 2004. http://www.co.brown.wi.us/Planning/roundabouts.html. Series of 6 roundabouts. Opened November 2004. Functional Class: Arterial ICD estimated from Google Maps linework.
Dublin, OH
Franklin Co.
United States 		Muirfield Dr. / Brand Rd.
(40.12731, -83.14957) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
73.1520 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		2005 Painted spirals next to central island.
Kennebunk, ME
York Co.
United States 		Fletcher (Rte 35) / Storer St.
(43.39060, -70.54562) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
23.4334 		Other (At-Grade)
Single-Lane 		2003 Completed Fall 2003. Legs at 6, 8, and 10 oclock, plus a driveway. ICD estimated from Google Maps linework.
Lee, NH
Rockingham Co.
United States 		US 4 / Rte 125
(43.14910, -71.00666) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
60.9600 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2015 Constructed November 2003 as single-lane rotary as part of new shopping mall. Converted to multilane roundabout in 2015. First multilane roundabout conversion in New Hampshire.
Nashua, NH
Hillsborough Co.
United States 		Main St. / Daniel Webster Hwy
(42.73881, -71.45826) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
32.4557 		Other (At-Grade)
Single-Lane 		2003 Located near Rivier College, 1/4 mile north of Exit 3 of the Everett Turnpike. ICD estimated from Google Maps linework.
Newton, MA
Middlesex Co.
United States 		Wheeler Rd. / Meadowbrook Rd.
(42.30915, -71.19085) 		Other
Existing 		One-Way/Two-Way Stop
None 		3 Approaches
0 Driveways
22.0809 		Other (At-Grade)
Single-Lane 		2003 At elementary school. ICD estimated from Google Maps linework.
Barnstable, MA
Barnstable Co.
United States 		Rte 149 / Race Ln.
(41.68164, -70.40159) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.8676 		Other (At-Grade)
Single-Lane 		1999 ICD estimated from Google Maps linework.
Abingdon, MD
Harford Co.
United States 		Tollgate Rd. / Singer Rd.
(39.47828, -76.32727) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
25.8121 		Other (At-Grade)
Single-Lane 		1998 http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 ICD estimated from Google Maps linework.
Fountain Green, MD
Harford Co.
United States 		Prospect Mill Rd. / Wagner Rd.
(39.55824, -76.30247) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
31.3072 		Other (At-Grade)
Single-Lane 		2002 http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 Functional Class: Collector ICD estimated from Google Maps linework.
Bel Air, MD
Harford Co.
United States 		Moores Mill Rd. / Brushing Ln.
(39.54368, -76.32365) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
27.6298 		Other (At-Grade)
Single-Lane 		2001 http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 ICD estimated from Google Maps linework.
Frogtown, MD
Harford Co.
United States 		Mardic Dr. / Willrich Ct.
(39.57178, -76.37160) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
31.3011 		Other (At-Grade)
Single-Lane 		2001 http://www.teachamerica.com/roundabouts/RA058B_ppr_Statmeyer.pdf#search=%22bel%20air%20roundabout%22 ICD estimated from Google Maps linework.
Kennewick, WA
Benton Co.
United States 		4th Ave. / Kellogg St.
(46.20635, -119.20120) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
32.2355 		Other (At-Grade)
Single-Lane 		2009 April 2009. Previously controlled by two-way stop Functional Class: Collector ICD estimated from Google Maps linework.
Kennewick, WA
Benton Co.
United States 		Grandridge Blvd. / Okanogan Pl.
(46.22327, -119.21380) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.3148 		Other (At-Grade)
Single-Lane 		2003 Completed November 2003. Functional Class: Collector ICD estimated from Google Maps linework.
Nampa, ID
Canyon Co.
United States 		Happy Valley Rd. / Amity Ave.
(43.56146, -116.51290) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
43.2726 		Other (At-Grade)
Single-Lane 		2006 Designed for ultimate two-lane w/ 180-ft ICD. Current 160-ft single-lane is initial build. Previously controlled by 4-way stop Functional Class: Arterial ICD estimated from Google Maps linework.
Lithonia, GA
DeKalb Co.
United States 		Klondike Rd. / Rockland Rd.
(33.67606, -84.11486) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
33.7927 		Other (At-Grade)
Single-Lane 		2008 Previously controlled by two-way stop control ICD estimated from Google Maps linework.
Gatineau, QC
Outaouais Region
Canada 		Blvd. St.-Laurent / Blvd. St.-Joseph (Rte. 105)
(45.43216, -75.73323) 		Roundabout
Existing 		All-Way Yield
Pedestrian Signal (red-yellow-green to drivers) 		4 Approaches
0 Driveways
49.4493 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2004 Staggered, two-stage pedestrian signal on east leg. Warning beacons on other legs. Functional Class: Arterial ICD estimated from Google Maps linework.
Brighton, MI
Livingston Co.
United States 		Lee Rd. / Whitmore Lake Rd.
(42.50627, -83.76012) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.2622 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 Linked with US 23 SB Ramps/Lee Rd. roundabout. Functional Class: Arterial ICD estimated from Google Maps linework.
Marshall, MI
Calhoun Co.
United States 		I-94 Business (W Michigan Ave.) / M-227 (Kalamazoo Ave.)
(42.27199, -84.96413) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
83.0730 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Homer, MI
Calhoun Co.
United States 		Hillsdale St. / Main St.
(42.14585, -84.80890) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
39.8485 		Other (At-Grade)
Single-Lane 		Before 1999. ICD estimated from Google Maps linework.
Tamarack Resort, ID
Valley Co.
United States 		West Mountain Rd. / Village Dr.
(44.66998, -116.11130) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
39.9203 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
Jupiter, FL
Palm Beach Co.
United States 		S. Central Blvd. / Indian Creek Pkwy.
(26.91067, -80.11073) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
105.4349 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2004 Functional Class: Arterial ICD estimated from Google Maps linework.
Jupiter, FL
Palm Beach Co.
United States 		S. Central Blvd. / Frederick Small Rd.
(26.89750, -80.11127) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
119.2938 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2004 ICD estimated from Google Maps linework.
Jupiter, FL
Palm Beach Co.
United States 		S. Central Blvd. / Main St.
(26.88774, -80.11160) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
119.3041 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2004 ICD estimated from Google Maps linework.
Fort Walton Beach, FL
Oskaloosa Co.
United States 		Hollywood Blvd. / Hill Ave.
(30.41394, -86.66806) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
29.8704 		Other (At-Grade)
Single-Lane 		1995 Anderson Drive to south is disconnected at roundabout.
Stuart, FL
Martin Co.
United States 		S. Dixie Hwy / SW Joan Jefferson Way / SW Akron Ave. / SW St. Lucie Ave.
(27.19928, -80.25545) 		Roundabout
Existing 		All-Way Yield
None 		5 Approaches
0 Driveways
29.7433 		Other (At-Grade)
Single-Lane 		2005 ICD estimated from Google Maps linework.
South Windsor, CT
Hartford Co.
United States 		Hemlock Ave. / Evergreen Way
(41.81417, -72.55495) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
45.3975 		Other (At-Grade)
Single-Lane 		2004 Roundabout is part of The Shops at Evergreen Walk retail center. ICD estimated from Google Maps linework.
Chattanooga, TN
Hamilton Co.
United States 		Mountain Creek Rd. / W Rd.
(35.10743, -85.32608) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
21.4951 		Other (At-Grade)
Single-Lane 		2003 At the base of the Previously controlled by one way stop ICD estimated from Google Maps linework.
Knightdale, NC
Wake Co.
United States 		Hinton Oakes Blvd. / Lynnwood Rd.
(35.79374, -78.51039) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
40.6876 		Other (At-Grade)
Single-Lane 		2007 Roundabout was designed to accommodate existing utilities and connect two existing roads and a driveway to a new retail outlet. Functional Class: Arterial ICD estimated from Google Maps linework.
Knightdale, NC
Wake Co.
United States 		Widewater Blvd. / Village Park Dr.
(35.79402, -78.50642) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
16.4687 		Other (At-Grade)
Single-Lane 		2004 Constructed using concrete. (Updated in 2007?) Functional Class: Collector ICD estimated from Google Maps linework.
Knightdale, NC
Wake Co.
United States 		Maplewood Dr. / McKnight Dr.
(35.79656, -78.48228) 		Other
Existing 		All-Way Yield
None 		2 Approaches
0 Driveways
33.9052 		Other (At-Grade)
Single-Lane 		2000 Functional Class: Collector ICD estimated from Google Maps linework.
Spokane, WA
Spokane Co.
United States 		Crestline Rd. / Lincoln St.
(47.72944, -117.37920) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.5271 		Other (At-Grade)
Single-Lane 		2006 Opened September 2006. ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Brainard Dr. / Squirreltail Dr.
(38.96376, -104.74410) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
23.2161 		Other (At-Grade)
Single-Lane 		2000 ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		(parking lot #1)
(39.01388, -104.81080) 		Roundabout
Removed 		All-Way Yield
None 		4 Approaches
0 Driveways
21.3437 		Other (At-Grade)
Single-Lane 		2013 Originally built 2004. Removal date estimated (2011-2015). ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Serenity Park Dr. / (parking lot)
(39.01540, -104.81010) 		Other
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
23.1991 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Research Pkwy. / (unknown #1)
(38.95966, -104.72230) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
44.5774 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 Has marked double-left turn at northbound entry using conventional arrows. Functional Class: Arterial ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Research Pkwy. / (unknown #2)
(38.96123, -104.71810) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
49.2198 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 Functional Class: Arterial ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Research Pkwy. / (unknown #3)
(38.96204, -104.71430) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
50.1479 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 Functional Class: Arterial ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		New Car Dr. / Duryea Dr.
(38.93880, -104.72930) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
44.5906 		Other (At-Grade)
Single-Lane 		2003 Serves retail shopping center. ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		New Car Dr. / Test Dr.
(38.93844, -104.73440) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
43.6618 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2003 Serves retail shopping center. ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		New Car Dr. / parking lot
(38.93777, -104.73750) 		Other
Existing 		Unknown
None 		2 Approaches
0 Driveways
43.6622 		Other (At-Grade)
Single-Lane 		Serves retail shopping center. ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Newport Rd. / Vapor Trl.
(38.80787, -104.72680) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
25.1284 		Other (At-Grade)
Single-Lane 		2002 Y-shaped intersection. ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Rockhurst Blvd. / University Park Blvd.
(38.91005, -104.78980) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
21.3750 		Other (At-Grade)
Single-Lane 		1998 ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Rockhurst Blvd. / Montebello Dr.
(38.90582, -104.78980) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
20.4468 		Other (At-Grade)
Single-Lane 		2000 ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Collegiate Dr. / Michael Dr.
(38.89928, -104.78230) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
16.7308 		Other (At-Grade)
Single-Lane 		2001 ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Kettle Drum St. / Antelope Ridge Dr.
(38.90673, -104.68530) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.6699 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Carefree Cir. / New Center Pl.
(38.87741, -104.71720) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
44.6291 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2003 ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Cedar Creek View / (parking lot)
(38.85572, -104.72340) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
24.1815 		Other (At-Grade)
Single-Lane 		2002 ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Treeline View / Stately View
(38.87351, -104.86560) 		Roundabout
Existing 		Unknown
Unknown 		3 Approaches
0 Driveways
38.1228 		Other (At-Grade)
Single-Lane 		2003 ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		(unknown #2)
(38.87847, -104.84910) 		Other
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
18.5952 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Colorado Springs, CO
El Paso Co.
United States 		Mesa Rd. / Kissing Camels Dr.
(38.87808, -104.86580) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
29.7525 		Other (At-Grade)
Single-Lane 		2001 ICD estimated from Google Maps linework.
New York, NY
Manhattan Co.
United States 		Columbus Circle (7th Ave. / Broadway / Central Park West / Central Park South)
(40.76808, -73.98187) 		Signalized Roundabout/Circle
Existing 		Signal
None 		5 Approaches
0 Driveways
123.0168 		Other (At-Grade)
Multilane (3+ Lane) 		1905 ICD estimated from Google Maps linework.
Hagerstown, MD
Washington Co.
United States 		Virginia Ave. / Memorial Blvd. / Prospect St. / Key St.
(39.63728, -77.72873) 		Other
Existing 		Other
None 		0 Approaches
0 Driveways
36.7900 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Hagerstown, MD
Washington Co.
United States 		E. Irvin Ave. / Mealey Pkwy.
(39.65536, -77.70186) 		Other
Existing 		All-Way Stop
None 		0 Approaches
0 Driveways
37.6999 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Hagerstown, MD
Washington Co.
United States 		E. Irvin Ave. / View St. / Valleybrook Dr.
(39.65536, -77.70058) 		Other
Existing 		All-Way Stop
None 		0 Approaches
0 Driveways
31.2633 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Hagerstown, MD
Washington Co.
United States 		E. Magnolia Ave. / Mealey Pkwy.
(39.65762, -77.70140) 		Other
Existing 		All-Way Stop
None 		0 Approaches
0 Driveways
32.1818 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Hagerstown, MD
Washington Co.
United States 		E. Magnolia Ave. / E. Irvin Ave.
(39.65722, -77.69958) 		Other
Existing 		All-Way Stop
None 		0 Approaches
0 Driveways
27.5846 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Lawrence, KS
Douglas Co.
United States 		W. Harvard Rd. / S. Moundridge Dr.
(38.96770, -95.30438) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
13.0003 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
(unincorporated), MA
Barnstable Co.
United States 		Rte 6A / Rte 28 (gateway to Cape Cod)
(41.74313, -70.58651) 		Rotary
Existing 		All-Way Yield
None 		0 Approaches
0 Driveways
118.8720 		Other (At-Grade)
Multilane (2 Lane, unspecified)
Boston, MA
Suffolk Co.
United States 		VFW Pkwy. / North Shore Rd. (Butler Circle)
(42.41228, -70.99350) 		Rotary
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
84.6514 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		Functional Class: Arterial ICD estimated from Google Maps linework.
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.
Gaithersburg, MD
Montgomery Co.
United States 		Kentlands Blvd. / Main St.
(39.12333, -77.23855) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
42.6720 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		1994 Year Completed estimated (1993-2002).
Gaithersburg, MD
Montgomery Co.
United States 		Kentlands Blvd. / Market St.
(39.12309, -77.23489) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Multilane (2 Lane, 2x1 max) 		1994 Year Completed estimated (1993-2002).
Gaithersburg, MD
Montgomery Co.
United States 		Orchard Ridge Dr. / Mill Green Ave.
(39.12559, -77.22635) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
37.9872 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2002 ICD estimated from Google Maps linework.
Gaithersburg, MD
Montgomery Co.
United States 		Winter Walk Dr. / Highland Ridge Ave.
(39.12807, -77.22692) 		Roundabout
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
34.2800 		Other (At-Grade)
Single-Lane 		1998 Year Completed estimated (1993-2002). Was cul-de-sac prior to addition of two more legs. ICD estimated from Google Maps linework.
Boise, ID
Ada Co.
United States 		S. Touchmark Way / E. Louise Dr.
(43.60317, -116.34880) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
29.4050 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Boise, ID
Ada Co.
United States 		S. Touchmark Way / S. Worth Way
(43.60206, -116.34610) 		Roundabout
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
30.2704 		Other (At-Grade)
Single-Lane 		2006 ICD estimated from Google Maps linework.
Arlington, VA
Arlington Co.
United States 		Memorial Dr. / Arlington Memorial Bridge
(38.88573, -77.06004) 		Rotary
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
114.3488 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Washington, DC
N/A Co.
United States 		G St. / 3rd St. SW
(38.88127, -77.01520) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
26.9620 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Washington, DC
N/A Co.
United States 		G St. / 1st St. SW
(38.88119, -77.01228) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
31.6106 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Washington, DC
N/A Co.
United States 		H St. / Delaware Ave.
(38.88028, -77.01262) 		Traffic Calming Circle
Existing 		Unknown
Unknown 		0 Approaches
0 Driveways
31.6110 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Washington, DC
N/A Co.
United States 		New York Ave. / Montana Ave. / West Virginia Ave.
(38.91723, -76.97813) 		Signalized Roundabout/Circle
Existing 		Signal
None 		0 Approaches
0 Driveways
65.9769 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Washington, DC
N/A Co.
United States 		Pennsylvania Ave. / Potomac Ave.
(38.88034, -76.98549) 		Signalized Roundabout/Circle
Existing 		Signal
None 		0 Approaches
0 Driveways
81.8167 		Other (At-Grade)
Unknown 		ICD estimated from Google Maps linework.
Jensen Beach, FL
Martin Co.
United States 		Jensen Beach Blvd. / Candice Ave. / Pineapple Dr.
(27.24387, -80.22741) 		Roundabout
Existing 		All-Way Yield
At-grade Rail Crossing Signals/Gates (controlling circulatory roadway only) 		5 Approaches
0 Driveways
48.7680 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2002 Railroad running through central island. ADT volume of 27000 on five-lane road west leg. Also an evacuation route. High volume FEC freight line.
Jensen Beach, FL
Martin Co.
United States 		SR 707 / Pineapple Dr. / Jensen Beach Causeway
(27.25074, -80.22818) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
30.7914 		Other (At-Grade)
Single-Lane 		1999 RT only lanes entering roundabout on two approaches. ICD estimated from Google Maps linework.
Brighton, MI
Livingston Co.
United States 		Village Place Blvd. / Green Oak Dr. / Fieldcrest Dr.
(42.50573, -83.75296) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Multilane (2 Lane, 2x2 max) 		2006
Brighton, MI
Livingston Co.
United States 		Village Place Blvd. / Green Oak Ave.
(42.50698, -83.75462) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		2006 ICD estimated from Google Earth.
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.
Richmond, VA
Henrico Co.
United States 		Monument Ave. / Allen Ave.
(37.55384, -77.46020) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
74.8004 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Richmond, VA
Henrico Co.
United States 		Stuart Circle
(37.55246, -77.45788) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
35.9806 		Other (At-Grade)
Multilane (2 Lane, unspecified) 		ICD estimated from Google Maps linework.
Greensboro, NC
Guilford Co.
United States 		Greene St. / McGee St.
(36.06852, -79.79192) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
21.2386 		Other (At-Grade)
Single-Lane 		2006 This is part of a major transformation of Greene Street in Downtown Greensboro. Greene Street is currently 4 lanes one-way and will be converted to 2-way traffic with one lane in each direction and angled parking in the middle of the street separated by a median. Functional Class: Arterial ICD estimated from Google Maps linework.
Concord, CA
Contra Costa Co.
United States 		Landana Dr. / Mulberry Dr.
(37.97886, -121.99430) 		Traffic Calming Circle
Existing 		All-Way Yield
None 		3 Approaches
0 Driveways
16.0041 		Other (At-Grade)
Single-Lane 		ICD estimated from Google Maps linework.
Huntington, NY
Suffolk Co.
United States 		Clinton Ave. / Gerard St.
(40.87225, -73.42886) 		Roundabout
Existing 		All-Way Yield
Unknown 		3 Approaches
0 Driveways
14.4499 		Other (At-Grade)
Single-Lane 		2002 http://query.nytimes.com/gst/fullpage.html?res=9D04E4DB133DF931A15751C1A9649C8B63 ICD estimated from Google Maps linework.
New Orleans, LA
Orleans Par.
United States 		Lee Circle (St. Charles Ave. / Andrew Higgins Dr.)
(29.94333, -90.07247) 		Signalized Roundabout/Circle
Existing 		Other
None 		4 Approaches
0 Driveways
99.3513 		Other (At-Grade)
Unknown 		Two tram lines run along the circulatory roadway. Some entry-circulating points are fully signalized; others are yield-controlled. ICD estimated from Google Maps linework.
Metairie Terrace, LA
Jefferson Par.
United States 		Causeway Blvd. (LA 3046) / US 61 (Airline Hwy.)
(29.97476, -90.15636) 		Rotary
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
107.5965 		Other (At-Grade)
Unknown 		Single-point interchange using one circle. Entire circle is on causeway structure over railroad yards. ICD estimated from Google Maps linework.
Pittsfield Township, MI
Washtenaw Co.
United States 		Campus Pkwy. / Suncrest Dr. / (parking)
(42.18764, -83.74729) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2002
Pittsfield Township, MI
Washtenaw Co.
United States 		Campus Pkwy. / Community Dr.
(42.18982, -83.74387) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
41.1480 		Other (At-Grade)
Single-Lane 		2002
Meridian Township, MI
Ingham Co.
United States 		Hulett Rd. / Bennett Rd.
(42.69739, -84.44709) 		Roundabout
Existing 		All-Way Yield
None 		4 Approaches
0 Driveways
35.9884 		Other (At-Grade)
Single-Lane 		2004 ICD estimated from Google Maps linework.
Manistee, MI
Manistee Co.
United States 		Lakeshore Dr. / Monroe St. / Cottage Ln.
(44.25355, -86.33302) 		Other
Existing 		Unknown
Unknown 		4 Approaches
0 Driveways
45.3388 		Other (At-Grade)
Single-Lane 		1992 Before 1993. No splitter islands on east leg. ICD estimated from Google Maps linework.