the.com/traffic circle
Geometry's polite way of saying nobody has the right of way, actually.
means A circular junction where entering traffic yields to cars already in the loop, letting vehicles flow without needing a stop at every corner.
from Traffic blends 'traffic' (from French trafic/Italian traffico, meaning trade or commerce — the flow of goods, later extended to the flow of vehicles) with 'circle' (Latin circulus, a small ring). The design itself owes its modern form to early 20th-century engineers — notably in the UK and France — who realized a loop with yield rules could keep carts and cars moving without a policeman at every crossing. The phrase simply names the shape and borrows 'traffic' from commerce's older sense of things in motion.
- origin
- popularized by NYC's Columbus Circle in 1905
- roundabout rebrand
- modern roundabouts yield entry, old circles yield exit
- safety data
- cut severe crashes roughly 80 percent versus signals
- myth
- nobody actually knows who has right of way