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The yellow trap occurs when the timing of the amber lights (also known as "yellow" lights in the USA) is asymmetric for two-way traffic on a single road: when a vehicle is waiting to turn across oncoming traffic and receives an amber light from the traffic signal, the driver may assume that oncoming traffic also has received an amber light and ...
Deutsch: Yellow Trap: Doghouse-/FYA-Signalgeber USA "Klassisches" Doghouse, seit 1971 im MUTCD. Ungesichertes Linksabbiegen mit grüner Vollscheibe. Kann Yellow Trap verursachen; Vierfeldiger Signalgeber mit Flashing Yellow Arrow, seit 2009 Standard für Neuanlagen; Flashing Yellow Arrow in einem Doghouse
Flicker vertigo, sometimes called the Bucha effect, is "an imbalance in brain-cell activity caused by exposure to low-frequency flickering (or flashing) of a relatively bright light." [ 1 ] It is a disorientation -, vertigo -, and nausea -inducing effect of a strobe light flashing at 1 Hz to 20 Hz, approximately the frequency of human brainwaves .