flashing signal

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• flashing signal — signal light that blinks on and off at regular intervals …   English contemporary dictionary

• Signal lamp — training during World War II. A signal lamp (sometimes called an Aldis lamp, named after Arthur C. W. Aldis who invented a widely used design) is a visual signaling device for optical communication (typically using Morse code). Modern signal… …   Wikipedia

• Signal timing — is the technique which traffic engineers use to determine who has the right of way at an intersection. Signal timing involves deciding how much green time the traffic lights shall provide at an intersection approach, how long the pedestrian WALK… …   Wikipedia

• signal — [sig′nəl] n. [OFr < VL signale < neut. of LL signalis < L signum, a SIGN] 1. Now Rare a token or indication 2. a sign or event fixed or understood as the occasion for prearranged combined action [a bugle signal to attack] 3. anything… …   English World dictionary

• Flashing light — A flashing light is a rhythmic light in which the total duration of the light in each period is clearly shorter than the total duration of the darkness and in which the flashes of light are all of equal duration. (Commonly used for a single… …   Wikipedia

• flashing light — Equipment on a police car, ambulance, or other emergency vehicle. 8 Am J2d Auto §§ 756, 757. A signal light on the highway which flashes on and off or changes from red to green. 8 Am J2d Auto § 745. Signal at railroad crossing warning of the… …   Ballentine's law dictionary

• flashing traffic light — traffic light which blinks on and off to signal a driver to yield or proceed with caution …   English contemporary dictionary

• Traffic signal preemption — is a type of system that allows the normal operation of traffic lights to be preempted, often to assist emergency vehicles.[1][2] The most common use of these systems is to manipulate traffic signals in the path of an emergency vehicle, stopping… …   Wikipedia

• Distress signal — Call for help redirects here. For the TV show, see Call for Help. A distress signal is an internationally recognized means for obtaining help. Distress signals take the form of or are commonly made by using radio signals, displaying a visually… …   Wikipedia

• Griswold Signal Company — The Griswold Signal Company was a manufacturer of traffic signals and railroad grade crossing signals based in Minneapolis, Minnesota.The company was founded by Minnesota native Frank W. Griswold, one of thirteen children born to attorney and… …   Wikipedia

• Landing Signal Officer — Landing Signal Officers (LSOs) are naval aviators specially trained to control the approach and landings of airplanes aboard aircraft carriers. Paddles In the U.S. Navy, aircraft carrier operations began with USS Langley (CV 1) in 1922. Langley s …   Wikipedia