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  2. Variations in traffic light operation - Wikipedia

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

    In New Zealand, where traffic is on the left, when a road is given a green light from an all-direction stop, a red arrow can continue to display to turning traffic, holding traffic back while a pedestrian crossing on the side road is given a green signal (for left turns) or while oncoming traffic goes straight ahead and there is no permissive right turn allowed (for right turns).

  3. Traffic light - Wikipedia

    en.wikipedia.org/wiki/Traffic_light

    This is an accepted version of this page This is the latest accepted revision, reviewed on 6 February 2025. Signaling device to control competing flows of traffic This article is about lights used for signalling. For other uses, see Traffic light (disambiguation). "Stoplight" redirects here. For other uses, see Stoplight (disambiguation). An LED 50- watt traffic light in Portsmouth, United ...

  4. Wigwag (flag signals) - Wikipedia

    en.wikipedia.org/wiki/Wigwag_(flag_signals)

    The white and black flags came in a six-foot (180 cm) size for greater range, and the white and red flags had a two-foot (60 cm) size. [14] The size and color of flag was chosen depending on lighting conditions and distance. The white flag was the most common and was used against dark backgrounds. Against light or varied backgrounds, the red ...

  5. Road traffic control device - Wikipedia

    en.wikipedia.org/wiki/Road_traffic_control_device

    The red light means that the vehicle facing the traffic light must come to a complete stop. A green light means that the vehicle facing the traffic light may proceed when it is safe to do so. A yellow light indicates that a red light will follow, and vehicle drivers must stop if it is safe to do so. Flashing beacons are flashing signals.

  6. North American railroad signals - Wikipedia

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

    Vertical color light signals are the second major pattern of color light signals, and today represent the most popular form of signal in North America, supplanting the searchlight. [citation needed] These signals are not different from the triangular type color signal in function, but present a much altered visual appearance.

  7. FDA bans use of Red No. 3 dye in food, drinks - AOL

    www.aol.com/fda-bans-red-no-3-145600082.html

    The U.S. Food and Drug Administration is moving to ban the use of Red No. 3 dye in food products. The agency said Wednesday it is amending its color additive regulations to no longer allow the use ...

  8. Flag signals - Wikipedia

    en.wikipedia.org/wiki/Flag_signals

    The flags measured two, four, or six feet (60, 120 or 180 cm) square and were generally either red or black banners with white square centers or white banners with red square centers. [7] The disks were 12 to 18 inches (30 to 46 cm) in diameter and were made of metal or wood frames with canvas surfaces.

  9. Why are flags at half-staff in Tennessee today? - AOL

    www.aol.com/why-flags-half-staff-tennessee...

    According to USA.gov, the U.S. flag flies at half-staff or at half-mast when the nation or a state is in mourning. The flag can be ordered to fly at half-staff by the president, a state governor ...