Roundabout
Traffic intersection
Summary
A roundabout, a rotary and a traffic circle are types of circular road in which traffic is permitted to flow in one direction around a central island.
Originally created by Mav
6/24/2002, 9:22:35 PM
Modified
5/24/2026, 1:02:07 PM
Recent revisions
Rescuing 3 sources and tagging 0 as dead.) #IABot (v2.0.9.5
Bot: Migrating 1 langlinks, now provided by [[d:|Wikidata]] on [[d:q1525]]
Rescuing 0 sources and tagging 4 as dead.) #IABot (v2.0.9.5
/* North American introduction since 1990s */
remove weebly self-published source [[WP:SPS]]
Converted references
wikisource is not a reliable source
/* Operation and design */ most of these do not look like criteria to me.
/* Operation and design */ it is out of place all the same, and redundant; ref moved to relevant spot
Reverted 1 edit by [[Special:Contributions/~2026-23891-10|~2026-23891-10]] ([[User talk:~2026-23891-10|talk]]): Bad source [[WP:UGC]]
/* Operation and design */There was an awkward bit of text that looked like it ought to be its own bullet point, so I moved it to conform with the rest of the section.
Add Vietnamese page
minor grammatical change
/* Origins and demise of traffic circles */ Added Aldwych on 12 Oct 1925 as first implementation in London of gyratory traffic control; added citation from Hansard giving dates for first four
/* Origins and demise of traffic circles */ Added sentences about how gyratory traffic control worked and that busy junctions continued to be controlled by police or, later, traffic signals
/* Modern roundabout */
/* Origins and demise of traffic circles */ Added paragraph about H.V.Lanchester's 1924 proposal for gyratory traffic control in London, adopted in 1926 at Trafalgar Square, Hyde Park Corner, etc
/* 1960s development of modern roundabouts */
/* 1960s development of modern roundabouts */ Rewrote the section to separate out the "priority rule" from redesign of the layout of roundabouts using deflection
