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  2. Level crossing signals - Wikipedia

    en.wikipedia.org/wiki/Level_crossing_signals

    The basic signal consists of flashing red lights, a crossbuck and an alarm (either a bell, a speaker that mimics a bell sound or an electronic siren), attached to a mast. At most crossings, the signals will activate about 30 seconds before the train arrives but there are sensors measuring speed so that the crossing knows when to activate; so ...

  3. Emergency vehicle lighting - Wikipedia

    en.wikipedia.org/wiki/Emergency_vehicle_lighting

    In New York, Connecticut and Indiana, volunteer ambulance service personnel use green lights. In New York City, a single flashing green light separated from the other red and blue flashing lights on an NYPD vehicle denotes it as a THV (Temporary Headquarters Vehicle) also known as a Mobile Command Post vehicle and also used on a 2-star ...

  4. Stack light - Wikipedia

    en.wikipedia.org/wiki/Stack_light

    Stack light in automated production for in-line quality inspection. Stack lights (also known as signal tower lights, indicator lights, andon lights, warning lights, industrial signal lights, or tower lights) are commonly used on equipment in industrial manufacturing and process control environments to provide visual and audible indicators of a machine's status to machine operators, technicians ...

  5. Spectrum cable introduces a new souped-up ‘cable box.’ What ...

    www.aol.com/spectrum-cable-introduces-souped...

    The new box, called XUMO, replaces the old set-top cable box and has several new features. Spectrum cable introduces a new souped-up ‘cable box.’ What it does, how much it costs

  6. Charter rolls out new Spectrum pricing and internet speeds ...

    www.aol.com/news/charter-rolls-spectrum-pricing...

    Life Unlimited — a new platform for Spectrum’s internet, mobile and TV services — will roll out across its 41-state footprint this week, the company said.

  7. Aviation light signals - Wikipedia

    en.wikipedia.org/wiki/Aviation_light_signals

    Air traffic control signal light gun in use at base flight tower. In the case of a radio failure or aircraft not equipped with a radio, or in the case of a deaf pilot, air traffic control may use a signal lamp (called a "signal light gun" or "light gun" by the FAA [1] [2]) to direct the aircraft.

  8. Review of Spectrum’s new Xumo streaming box with ... - AOL

    www.aol.com/review-spectrum-xumo-streaming-box...

    To use Xumo, you need to be a Spectrum cable TV subscriber and a Spectrum internet customer. Currently, most Spectrum customers get cable TV access through what’s called a “set top box,” or ...

  9. Traffic light - Wikipedia

    en.wikipedia.org/wiki/Traffic_light

    A three-colour signal head should have three non-flashing lights which are red, amber, and green, either arranged horizontally (on the side opposite to the direction of traffic) or vertically (with red on top). A two-colour signal head may be used in temporary operation and consists of red and green non-flashing lights.