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  2. Emergency service response codes - Wikipedia

    en.wikipedia.org/wiki/Emergency_service_response...

    Code 3: Respond to the call using lights and sirens. Code 2: Respond to the call with lights only (rarely allowable by state statutes) Code 1: Respond to the call without lights or sirens. Some agencies may use the terms "upgrade" and "downgrade" to denote an increase or decrease in priority.

  3. Rules of the Road: Lights and sirens, oh my! When to pull ...

    www.aol.com/rules-road-lights-sirens-oh...

    A: I’d like to believe that when we see an emergency vehicle approaching with lights and siren, we all want to do the right thing. But as I’ve experienced, and likely you have too, when an ...

  4. Courtesy lights - Wikipedia

    en.wikipedia.org/wiki/Courtesy_lights

    Courtesy lights are used to request right-of-way primarily by volunteer or on-call firefighters, emergency medical technicians (EMTs), and other first responders to expedite their response in their privately owned vehicles to their firehouse, base, or directly to the scene of an emergency call. Courtesy lights sometimes allow the user to ...

  5. Siren (alarm) - Wikipedia

    en.wikipedia.org/wiki/Siren_(alarm)

    Sound sample ⓘ An 1860s-era siren. [2] A siren is a loud noise-making device. There are two general types: mechanical and electronic. Civil defense sirens are mounted in fixed locations and used to warn of natural disasters or attacks. Sirens are used on emergency service vehicles such as ambulances, police cars, and fire engines.

  6. Did your cell phone make a screeching noise today? Here’s why

    www.aol.com/america-national-emergency-alert...

    Essentially, what this means is that hundreds of millions of cell phones around the country made a screeching alert noise at approximately the same time today, beginning around 2:20 pm ET.

  7. That blaring noise you heard? It was a test of the federal ...

    www.aol.com/news/know-emergency-alert-test...

    The Emergency Alert System is a national public warning system that's designed to allow the president to speak to t. WASHINGTON (AP) — “THIS IS A TEST": If you have a cellphone or were ...

  8. Distress signal - Wikipedia

    en.wikipedia.org/wiki/Distress_signal

    Distress signals are communicated by transmitting radio signals, displaying a visually observable item or illumination, or making a sound audible from a distance. A distress signal indicates that a person or group of people, watercraft , aircraft , or other vehicle is threatened by a serious or imminent danger and requires immediate assistance ...

  9. Tennessee tornado sirens failed to sound in storm that ... - AOL

    www.aol.com/tennessee-tornado-sirens-failed...

    It’s not the first time the state’s tornado siren system hasn’t worked properly. In 2019, a drop in radio signal caused Nashville’s tornado warning system to repeat a siren cycle.