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  2. Variations in traffic light operation - Wikipedia

    en.wikipedia.org/wiki/Variations_in_traffic...

    Washington state, particularly Seattle, used a flashing yellow ball in the left-turn signal for the same purpose. Seattle also used a four-lamp signal at about 20 locations, with a red ball, a steady yellow ball, a flashing yellow ball, and a dual-mode yellow and green arrow; during the permissive turn, the flashing yellow ball was displayed. [26]

  3. North American railroad signals - Wikipedia

    en.wikipedia.org/wiki/North_American_railroad...

    Lunar White - Blue filtered light to eliminate all trace of yellow used to indicate a restricted proceed condition. Lemon Yellow (The AAR's official name) - Used in position light systems as an all-purpose high visibility color, greatest fog penetration. (Plain) White - Plain incandescent white light. Used in dwarf position light signals with ...

  4. Railway signal - Wikipedia

    en.wikipedia.org/wiki/Railway_signal

    A position light signal is one where the position of the lights, rather than their colour, determines the meaning. The aspect consists solely of a pattern of illuminated lights, which are all of the same colour. In many countries, small position light signals are used as shunting signals, while the main signals are of colour light form.

  5. Can you drive through a yellow light in Georgia? Here’s what ...

    www.aol.com/drive-yellow-light-georgia-law...

    “A motorist facing a yellow light can proceed through the intersection if it is unsafe to stop,” according to Georgia personal injury firm Butler Kahn. That driver also has the right-of-way ...

  6. Emergency vehicle lighting - Wikipedia

    en.wikipedia.org/wiki/Emergency_vehicle_lighting

    Amber or yellow flashing lights and lightbars are for warning some special attribute (e.g. oversized, slow, parking at unexpected places etc.) of vehicles like garbage trucks, road cleaning/control/repair, snow plow, car assistance services, construction, transporting dangerous materials etc. Amber/yellow lights do not grant traffic privileges ...

  7. Light characteristic - Wikipedia

    en.wikipedia.org/wiki/Light_characteristic

    In other words, it is the opposite to a flashing light where the total duration of darkness is longer than the duration of light. It has the appearance of flashing off, rather than flashing on. Like a flashing light, it can be used for a single occulting light that exhibits only a single period of darkness or the periods of darkness can be ...

  8. Yellow trap - Wikipedia

    en.wikipedia.org/wiki/Yellow_trap

    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 ...

  9. "Sesame Street" has been gentrified. After 45 seasons, the brick walls that once fenced in the neighborhood have been razed, giving way to sweeping views of what looks suspiciously like the Brooklyn Bridge (it is in fact a composite of three New York City bridges).