| City, 
                State County Country | Intersection (Lat, Lng) | Type Status | Control Type / Other Control Type | Approaches / Driveways / ICD (m) | Functional Class / LaneType | Year Completed | Comments | 
|---|---|---|---|---|---|---|---|
| Roanoke,
                TX Denton Co. United States | S Oak St. / Lamar St. (32.99704, -97.23015) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 24.3840 | Other (At-Grade) Single-Lane | 2010 | Painted splitter islands. Constructed in 2009-2010 as part of street reconstruction project. | 
| Roanoke,
                TX Denton Co. United States | N Oak St. / Travis St. (33.00145, -97.22769) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 24.3840 | Other (At-Grade) Single-Lane | 2010 | Painted splitter islands. Constructed in 2009-2010 as part of street reconstruction project. | 
| Roanoke,
                TX Denton Co. United States | Fairway Ranch Pkwy. / Byron Lakes Dr. (33.00998, -97.24231) | Other Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.6240 | Other (At-Grade) Single-Lane | 2014 | No splitter islands. Yield signs in central island. | 
| Roanoke,
                VA Roanoke City Co. United States | Colonial Ave. SW / Winding Way Rd. SW (37.24543, -79.97470) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 19.9657 | Other (At-Grade) Single-Lane | 2018 | https://www.roanoke.com/news/local/roundabout-makeover-starts-tuesday-on-colonial-avenue-by-community-college/article_975d6b20-fc2e-50c5-95d0-680a8e9686ce.html ICD estimated from Google Maps linework. | 
| Roanoke,
                IN Allen Co. United States | Ernst Rd. / (connector to Lower Huntington Rd.) (40.99439, -85.27605) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | 2024 | At new Fort Wayne IUHealth campus. https://www.openstreetmap.org/#map=16/40.99329/-85.27753. https://www.google.com/maps/@40.9942784,-85.2772513,17z?entry=ttu. | 
| Roanoke,
                VA Roanoke City United States | 13th St. SE / Wise Ave. SE (37.27623, -79.92490) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 33.5280 | Other (At-Grade) Single-Lane | 2023 | https://www.wdbj7.com/2021/11/02/roanokes-13th-street-se-project-begin-wednesday/ | 
| Roads,
                FL Miami-Dade Co. United States | SW 5th Ave. / SW 25th Rd. (25.75845, -80.20929) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.4320 | Other (At-Grade) Single-Lane | 2005 | |
| Roads,
                FL Miami-Dade Co. United States | SW 4th Ave. / SW 25th Rd. (25.75730, -80.20835) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.4320 | Other (At-Grade) Single-Lane | 2005 | |
| Roads,
                FL Miami-Dade Co. United States | SW 4th Ave. / SW 27th Rd. (25.75611, -80.21011) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.9080 | Other (At-Grade) Single-Lane | 2004 | |
| Roads,
                FL Miami-Dade Co. United States | SW 4th Ave. / SW 29th Rd. (25.75488, -80.21188) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.9080 | Other (At-Grade) Single-Lane | 2005 | |
| Roads,
                FL Miami-Dade Co. United States | SW 5th Ave. / SW 28th Rd. (25.75665, -80.21198) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.9080 | Other (At-Grade) Single-Lane | 2005 | |
| Roads,
                FL Miami-Dade Co. United States | SW 2nd Ave. / SW 25th Rd. (25.75478, -80.20621) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 28.9560 | Other (At-Grade) Single-Lane | 2010 | Replaced circular intersection with unknown control. Year Completed estimated (2009-2010). | 
| Roads,
                FL Miami-Dade Co. United States | SW 26th Rd. / SW 2nd Ave. (25.75418, -80.20713) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 25.9080 | Other (At-Grade) Single-Lane | 2007 | Year Completed estimated (2006-2007). | 
| Roads,
                FL Miami-Dade Co. United States | SW 5th Ave. / SW 20th Rd. (25.76131, -80.20516) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 21.3360 | Other (At-Grade) Single-Lane | 2005 | |
| Road Town,
                Tortola British Virgin Islands | James Water Francis Dr. / Fleming St. (18.42351, -64.62042) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 36.2597 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Road Town,
                Tortola British Virgin Islands | James Walter Francis Dr. / Blackburn Hwy / Belle Vue Rd. (18.42721, -64.60819) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 74.7840 | Other (At-Grade) Multilane (2 Lane, unspecified) | ICD estimated from Google Maps linework. | |
| Rivne,
                Rivne Rivne Raion Ukraine | P05 (vulytsia Yuriia Haharina) / Lonokombinativska vulytsia / vulytsia Kostromska (50.63627, 26.28339) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Rivière-du-Loup,
                QC Riviere-du-Loup Canada | Hwy 132 (Boulevard de l'Hôtel de Ville-Rue Frazer) / Rue Roland-Roussel (47.81947, -69.56203) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 44.1075 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Fourth approach apparently intended for off-road vehicles (ATVs, snowmobiles). ICD estimated from Google Maps linework. | 
| Riviera Beach,
                FL Palm Beach Co. United States | Estates Dr. (26.83040, -80.07323) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Riviera Beach,
                FL Palm Beach Co. United States | Indian Trace Circle (26.77602, -80.10818) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | Parking along circulatory roadway. | |
| Riviera,
                CA Santa Barbara Co. United States | Mountain Dr. / Mission Ridge Rd. (34.44102, -119.71150) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 9.1440 | Other (At-Grade) Single-lane w/ Traversable Central Island | 2007 | Central island is painted only, similar to UK practice. Two approaching streets are only separated by a retaining wall. Year Completed estimated (2006-2007). | 
| Riviera,
                FL Miami-Dade Co. United States | San Vicente St. / Como Ave. / Maggiore St. (25.71103, -80.26339) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2007 | Painted splitter islands. Egg shaped. Year Completed estimated (2006-2007). | 
| Riviera,
                FL Miami-Dade Co. United States | San Amaro Dr. / Miller Rd. (25.71906, -80.28176) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 34.4323 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2012 | Year Completed estimated (2011-2013). ICD estimated from Google Maps linework. | 
| Riviera,
                FL Miami-Dade Co. United States | Miller Rd. / Alhambra Cir. (25.71904, -80.28389) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 21.5202 | Other (At-Grade) Single-Lane | 2014 | ICD estimated from Google Maps linework. | 
| Riviera,
                FL Miami-Dade Co. United States | Blue Rd. / Alhambra Cir. (25.72656, -80.28413) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 18.2910 | Other (At-Grade) Single-Lane | 2009 | Year Completed estimated (2007-2010). ICD estimated from Google Maps linework. | 
| Riviera,
                FL Miami-Dade Co. United States | Blue Dr. / San Amaro Dr. (25.72665, -80.28103) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 16.1391 | Other (At-Grade) Single-Lane | 2009 | Year Completed estimated (2009-2010). ICD estimated from Google Maps linework. | 
| Riverview,
                FL Hillsborough Co. United States | Pradera Reserve Blvd. / Palmera Vista Dr. (27.79421, -82.28690) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 48.6007 | Other (At-Grade) Single-Lane | 2014 | Fourth leg added 2018. ICD estimated from Google Maps linework. | 
| Riverview,
                FL Hillsborough Co. United States | Dorado Shores Ave. / Triple Creek Blvd. (27.79803, -82.27133) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 54.9380 | Other (At-Grade) Single-Lane | 2008 | ICD estimated from Google Maps linework. | 
| Riverview,
                FL Hillsborough Co. United States | Big Bend Rd. / Boggy Creek Dr. (27.80313, -82.26919) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 55.9918 | Other (At-Grade) Single-Lane | 2017 | ICD estimated from Google Maps linework. | 
| Riverview,
                FL Hillsborough Co. United States | Silton Peace Dr. / Newgate Crest Dr. (27.81114, -82.30988) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 31.6912 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Riverview,
                FL Hillsborough Co. United States | Balm Boyette Rd. / Boyette Rd. (27.81723, -82.23162) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 57.9120 | Other (At-Grade) Single-Lane | 2020 | https://www.ospreyobserver.com/2020/04/new-roundabout-and-sculpture-part-of-changing-traffic-on-local-roads/ | 
| Riverview,
                Queensland Ipswich Australia | River Rd. / Westphalen Dr. / Lock Way / M2 (Warrego Hwy) EB Ramps (-27.58992, 152.83335) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Freeway Ramps (Grade-Separated) Single-Lane | ||
| Riverview,
                NB Albert Canada | Gunningsville Blvd. / Bridgedale Blvd. (46.06111, -64.77907) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | 2020 | https://www.youtube.com/watch?v=QcYrh41gvRY | 
| Riverview,
                FL Hillsborough Co. United States | Blue Beach Dr. / Still River Dr. (27.87505, -82.36305) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 51.8160 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2006 | Marked bike lane around circulatory roadway. | 
| Riverview,
                NB Albert Canada | Pinewood Rd. / Pine Glen Rd. (46.05248, -64.78896) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | 2022 | https://www.919thebend.ca/2022/07/18/riverview-roundabouts/ | 
| Riverview,
                FL Hillsborough Co. United States | Pavilion Palms Cir. / Pavilion Palms Cir. (27.91604, -82.35103) | Other Existing | Unknown Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | ||
| Riverview,
                NB Albert Canada | Bridgedale Blvd. / Runneymeade Rd. (46.06430, -64.76196) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 45.0000 | Other (At-Grade) Single-Lane | 2021 | East leg stubbed. Year Completed estimated (2020-2021). https://www.townofriverview.ca/news/bridgedale-boulevard-is-taking-shape | 
| Rivervale,
                Western Australia Belmont Australia | Alexander Rd. / Kooyong Rd. (-31.96757, 115.92067) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Riverton,
                UT Salt Lake Co. United States | Hamilton View Rd. / W Chamonix Way (40.50497, -111.97475) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 27.2432 | Other (At-Grade) Single-Lane | 2007 | Bypass lane on northwest leg. Year Completed estimated (2007-2009). ICD estimated from Google Maps linework. | 
| Riverton,
                UT Salt Lake Co. United States | S Park Ave. / W Park Ave. (40.51950, -111.94594) | Roundabout Existing | All-Way Yield None | 4 Approaches 1 Driveways 28.1452 | Other (At-Grade) Single-Lane | 2001 | Year Completed estimated (1997-2002). ICD estimated from Google Maps linework. | 
| Riverton,
                VA Warren Co. United States | Rte 655 / Riverton Commons Dr. (38.96486, -78.18718) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 38.0738 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2008 | ICD estimated from Google Maps linework. | 
| Riverton,
                KS Cherokee Co. United States | US 69 Alt / K-66 / Beasley Rd. (37.07561, -94.71608) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 57.1730 | Other (At-Grade) Single-Lane | 2008 | Opened December 2008. Previously controlled by two-way stop ICD estimated from Google Maps linework. | 
| Riverstone,
                New South Wales Blacktown Australia | Piccadilly St. / Regent St. (-33.68040, 150.86940) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-lane w/ Traversable Central Island | ||
| Riverside at Somersett,
                NV Washoe Co. United States | Somersett Pkwy. / River Hill Way (39.52375, -119.91112) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 58.0393 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2003 | ICD estimated from Google Maps linework. | 
| Riverside,
                MO Platte Co. United States | N Woodward Rd. / NW 52nd St. (39.18892, -94.63177) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 37.9531 | Other (At-Grade) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Riverside,
                MO Platte Co. United States | Horizons Pkwy. / Argosy Casino Pkwy. (39.15795, -94.64060) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 50.0090 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | ICD estimated from Google Maps linework. | 
| Riverside,
                MO Platte Co. United States | Argosy Casino Pkwy. / US 69 NB Ramps / NW Tremont Trafficway (39.16237, -94.62502) | Roundabout Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways 40.7455 | Freeway Ramps (Grade-Separated) Single-Lane | 2016 | ICD estimated from Google Maps linework. | 
| Riverside,
                England Liverpool United Kingdom | Warwick St. / Mill St. (53.39029, -2.97352) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-lane w/ Traversable Central Island | ||
| Riverpark,
                CA Ventura Co. United States | N Oxnard Blvd. / Garonne St. / Kiawah River Dr. (34.24692, -119.17459) | Other Existing | All-Way Yield Unknown | 6 Approaches 0 Driveways 135.2541 | Other (At-Grade) Multilane (2 Lane, unspecified) | Functions as series of T-intersections. Pedestrian access to central island; parking along circulatory roadway. ICD estimated from Google Maps linework. | |
| Riverpark,
                CA Ventura Co. United States | N Oxnard Blvd. / N Ventura Blvd. / Moss Landing Blvd. (34.24940, -119.17267) | Other Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 69.1059 | Other (At-Grade) Single-Lane | Yield lines but no yield signs. Parking along circulatory roadway. ICD estimated from Google Maps linework. | |
| Riverhead,
                NY Suffolk Co. United States | Osborn Ave. / Middle Rd. / Horton Ave. (40.93469, -72.69623) | Roundabout Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways 54.8640 | Other (At-Grade) Single-Lane | 2008 | Year Completed estimated (2007-2008). | 
| Riverhead,
                NY Suffolk Co. United States | Quogue Riverhead Rd. / Old Riverhead Rd. (40.87822, -72.63782) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 39.7335 | Other (At-Grade) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Riverhead,
                NY Suffolk Co. United States | Flanders Rd. (Rte. 24) / Peconic Ave. / Lake Ave. / Riverleigh Ave. (40.91461, -72.66277) | Roundabout Existing | All-Way Yield Unknown | 5 Approaches 0 Driveways 58.6650 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2018 | Converted from rotary to roundabout in 2018. https://riverheadlocal.com/2018/10/26/its-been-a-long-road-to-a-new-roundabout-in-riverside-but-its-officially-completed/. ICD estimated from Google Maps linework. | 
| Riverhead,
                NY Suffolk Co. United States | Rte. 24 / CR 94 (40.91591, -72.66968) | Rotary Existing | Unknown Unknown | 3 Approaches 0 Driveways 86.6419 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Riverhead,
                NY Suffolk Co. United States | Rte. 24 / (unknown) (40.91524, -72.66606) | Rotary Existing | Unknown Unknown | 3 Approaches 0 Driveways 48.7366 | Other (At-Grade) Unknown | ICD estimated from Google Maps linework. | |
| Riverhead,
                NY Suffolk Co. United States | Rte. 58 / Roanoke Ave. (40.93315, -72.67399) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.7005 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2009 | Was single-lane traffic circle. Redesigned, resigned, and restriped in 2009. ICD estimated from Google Maps linework. | 
| Riverhead,
                Auckland Auckland New Zealand | Coatesville-Riverhead Hwy. / Riverhead Rd. / Kaipara Portage Rd. (-36.76278, 174.58754) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Riverdale,
                UT Weber Co. United States | 4400 S / Airport Rd. (41.18354, -112.01520) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 36.8531 | Other (At-Grade) Single-Lane | 2009 | ICD estimated from Google Maps linework. | 
| Riverdale,
                UT Weber Co. United States | 4400 S / Cozy Dale Dr. (41.18320, -112.01220) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 32.3590 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Riverdale,
                UT Weber Co. United States | 4400 S / 1250 W (41.18283, -112.01040) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 30.5615 | Other (At-Grade) Single-Lane | 2006 | ICD estimated from Google Maps linework. | 
| Riverdale,
                UT Weber Co. United States | 500 W / Pacific Ave. (41.18601, -111.98880) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 28.7623 | Other (At-Grade) Single-Lane | 2007 | ICD estimated from Google Maps linework. | 
| Riverdale,
                UT Weber Co. United States | 4400 S / 700 W (41.18214, -111.99580) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 28.7640 | Other (At-Grade) Single-Lane | 2012 | ICD estimated from Google Maps linework. | 
| Riverdale,
                UT Weber Co. United States | River Park Dr. / Sams Club access (41.17197, -112.00210) | Roundabout Existing | All-Way Yield Other | 3 Approaches 0 Driveways 53.3400 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2001 | Raised crosswalks. | 
| Riverdale,
                UT Weber Co. United States | River Park Dr. / 900 W (41.17318, -111.99900) | Roundabout Existing | All-Way Yield Other | 3 Approaches 0 Driveways 53.3400 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2001 | Raised crosswalks. | 
| Riverdale,
                AR Pulaski Co. United States | Rebsamen Park Rd. / Riverfront Dr. (34.77506, -92.31189) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 31.3926 | Other (At-Grade) Single-Lane | 2012 | At-grade railroad crossing across one leg controlled by crossbuck and warning lights (no gates). Fatal crash July 20, 2019. Info: https://katv.com/news/local/vehicle-catches-on-fire-after-hitting-boulder-in-little-rock-traffic-circle. ICD estimated from Google Maps linework. | 
| Riverbank,
                CA Stanislaus Co. United States | Crawford Rd. / Homewood Way (37.71818, -120.94930) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 45.3480 | Other (At-Grade) Single-Lane | 2003 | Bike lanes in circulatory roadway in 2010 photo. ICD estimated from Google Maps linework. | 
| Riverbank,
                CA Stanislaus Co. United States | Chancellor Way / Gallery Dr. (37.72000, -120.95440) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 24.5629 | Other (At-Grade) Single-Lane | 2003 | Residential area. ICD estimated from Google Maps linework. | 
| Riverbank,
                CA Stanislaus Co. United States | Chancellor Way / Novi Dr. (37.72214, -120.95440) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 27.3963 | Other (At-Grade) Single-Lane | 2003 | Residential area near park. ICD estimated from Google Maps linework. | 
| Riverbank,
                CA Stanislaus Co. United States | Antique Rose Way / Novi Dr. (37.72203, -120.95680) | Traffic Calming Circle Existing | All-Way Yield None | 4 Approaches 0 Driveways 85.0230 | Other (At-Grade) Single-Lane | 2008 | Small diameter, no splitter islands, near park. ICD estimated from Google Maps linework. | 
| Riverbank,
                CA Stanislaus Co. United States | Antique Rose Way / Gallery Dr. (37.71997, -120.95630) | Traffic Calming Circle Existing | All-Way Yield None | 4 Approaches 0 Driveways 62.3519 | Other (At-Grade) Single-Lane | 2008 | Small diameter, no splitter islands, residential ICD estimated from Google Maps linework. | 
| Riverbank,
                CA Stanislaus Co. United States | Squire Wells Way / Heartland Dr. (37.71484, -120.95160) | Traffic Calming Circle Existing | All-Way Yield None | 4 Approaches 0 Driveways 41.5708 | Other (At-Grade) Single-Lane | 2007 | Small diameter. ICD estimated from Google Maps linework. | 
| River Terrace,
                OR Washington Co. United States | SW River Terrace Blvd. / SW Appledale Rd. (45.42317, -122.84929) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 36.5760 | Other (At-Grade) Single-Lane | 2018 | |
| River Grove,
                UT Utah Co. United States | W 820 N / Independence Ave. (40.24521, -111.69032) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 29.1717 | Other (At-Grade) Single-Lane | 2010 | Year Completed estimated (2009-2010). ICD estimated from Google Maps linework. | 
| River Falls,
                WI Pierce Co. United States | STH 29-STH 35 (Cemetary Rd.) / S Wasson Ln. / 945th St. (44.84085, -92.60852) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways 42.3430 | Other (At-Grade) Single-Lane | 2006 | Opened October 25, 2006. ICD estimated from Google Maps linework. | 
| River Falls,
                WI Pierce Co. United States | STH 29-STH 35 (Cemetary Rd.) / STH 65 (44.84100, -92.60223) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 46.5772 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2010 | Opened July 2010. ICD estimated from Google Maps linework. | 
| River Falls,
                WI Pierce Co. United States | Cascade Ave. / 6th St. (44.85409, -92.61926) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 37.2533 | Other (At-Grade) Single-Lane | 2012 | Opened November 2012. ICD estimated from Google Maps linework. | 
| River Falls,
                WI Pierce Co. United States | Cascade Ave. / 2nd St. (44.85418, -92.62532) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 30.4799 | Other (At-Grade) Single-Lane | 2012 | Opened November 2012. ICD estimated from Google Maps linework. | 
| River Falls,
                WI St. Croix Co. United States | Radio Rd. / STH 35 SB Ramps (44.89762, -92.64890) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 45.6854 | Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) | 2014 | Two-lane yield-controlled right-turn bypass lane on off-ramp. Merging right-turn bypass lane oon south leg. Year Completed estimated (2012-2016). ICD estimated from Google Maps linework. | 
| River Falls,
                WI St. Croix Co. United States | Radio Rd. / Paulson Rd. (44.89510, -92.64967) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 52.4559 | Other (At-Grade) Multilane (2 Lane, unspecified) | 2014 | Fourth (west) leg stubbed. Year Completed estimated (2012-2016). ICD estimated from Google Maps linework. | 
| River Falls,
                WI Pierce Co. United States | E Cascade Ave. / S Wasson Ln. (44.85113, -92.60900) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways 0.0000 | Other (At-Grade) Single-Lane | 2024 | https://www.facebook.com/reel/563284889746205 | 
| Ritz Carlton,
                FL Palm Beach Co. United States | Bald Eagle Dr. / Royal Tern Ct. (26.89194, -80.09133) | Other Existing | All-Way Stop Unknown | 3 Approaches 0 Driveways 0.0000 | Other (At-Grade) Unknown | ||
| Rittenhouse,
                PA Philadelphia Co. United States | Logan Square (39.95817, -75.17063) | Other Existing | Unknown Unknown | 5 Approaches 0 Driveways 0.0000 | Other (At-Grade) Multilane (2 Lane, unspecified) | Pedestrian access to central island. | |
| Ritchie,
                MD Prince Georges Co. United States | Ritchie-Marlboro Rd. / I-95 SB Ramps (38.86894, -76.84738) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 770.9968 | Freeway Ramps (Grade-Separated) Multilane (3+ Lane) | 2001 | Opening initially with two lanes. Expanded from two lanes to three lanes in 2010. 21442 | 
| Ritchie,
                MD Prince Georges Co. United States | Ritchie-Marlboro Rd. / I-95 NB Ramps (38.86824, -76.84158) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways 67.0560 | Freeway Ramps (Grade-Separated) Multilane (3+ Lane) | 2001 | Opened initially with two lanes. Expanded from two lanes to three lanes in 2010. 21442 | 
| Rissne,
                Stockholm County Sundbyberg Sweden | Madenvägen / Östra Madenvägen (59.37905, 17.95375) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 26.7669 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Rissne,
                Stockholm County Sundbyberg Sweden | Rissneleden / Lavettvägen (59.37348, 17.93428) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways 20.0785 | Other (At-Grade) Single-Lane | ICD estimated from Google Maps linework. | |
| Risør,
                Agder Risør Norway | E18 / Fv418 (Søndeledveien) (58.73013, 9.03774) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Risley,
                England Warrington United Kingdom | Ordnance Ave. / Admirals Rd. / (fire service entrance) (53.42026, -2.52536) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Risley,
                England Warrington United Kingdom | Ordnance Ave. / Admirals Rd. (53.42299, -2.51633) | Roundabout Existing | All-Way Yield None | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Risley,
                England Warrington United Kingdom | A574 (Birchwood Way) / Faraday St. (53.42230, -2.52183) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Risley,
                England Warrington United Kingdom | A574 (Birchwood Park Ave.) / Glover Rd. / (Hinton House entrance) (53.42674, -2.53329) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Risley,
                England Warrington United Kingdom | A574 (Birchwood Park Ave.) / Glover Rd. / Garrett Field (53.42377, -2.53070) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Risley,
                England Warrington United Kingdom | Daten Ave. / Clayton Rd. / Leacroft Rd. / Risley Rd. (53.43032, -2.51604) | Roundabout Existing | All-Way Yield None | 5 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Rising Sun,
                MD Cecil Co. United States | MD 273 (Rising Sun Rd.) / MD 276 (Jacob Tome Memorial Hwy.) (39.69595, -76.08018) | Roundabout Existing | All-Way Yield None | 4 Approaches 0 Driveways 39.5157 | Other (At-Grade) Single-Lane | 2003 | ICD estimated from Google Maps linework. | 
| Rishon LeZion,
                Central District Israel | Sderot Haitsiyonut / Rehov Nessim Mallel / Rehov Elimelech Tazmir (31.98147, 34.80694) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Rishon LeZion,
                Central District Israel | HaShayetet St. / Ahi Lahav St. / Ahi Bat Galim St. (31.99787, 34.73554) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Rishon LeZion,
                Central District Israel | Rabin Square (31.97046, 34.77383) | Other Existing | Unknown Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Multilane (2 Lane, unspecified) | ||
| Rishon LeZion,
                Central District Israel | (unknown) / (parking) (31.98069, 34.74739) | Roundabout Existing | All-Way Yield Unknown | 4 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Rishon LeZion,
                Central District Israel | Henry Kissinger St. / Elie Wiesel St. / Shimon Peres St. (31.96975, 34.76904) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane | ||
| Rishon LeZion,
                Central District Israel | Sderot Ben Gurion / Sderot Begin (31.97254, 34.79149) | Roundabout Existing | All-Way Yield Unknown | 3 Approaches 0 Driveways | Other (At-Grade) Single-Lane |