Why is the Emergency Call So Loud?

Table of Contents Hide
  1. Lights
  2. Sirens
  3. Colors
  4. Sound waves

If you’re asking yourself, “Why is the emergency call so loud?” it’s time to look at the sirens and lights that are used in emergency response. Most of the time, these systems don’t need to be as loud as they are. However, there are some situations where they are necessary.

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Emergency calls can be extremely loud. However, they may not be necessary for every emergency. Using sirens and lights is only an effective response in a small percentage of calls, and they are critical only for cardiac arrest emergencies. In fact, from 2010 to 2015, only 77.5 percent of calls were responded to by lights and sirens. This shows that sirens and lights are often unnecessary and can actually cause harm to emergency responders and patients.


A recent study concluded that the use of lights and sirens has little impact on the outcomes of medical emergencies. While it’s true that lights and sirens can alert emergency responders and warn pedestrians of impending danger, their loud, shrill sound is actually not a good idea for patient safety. In fact, it may even cause unnecessary harm.

The reason for the siren’s loudness is not entirely clear. One study found that the ambulance siren could be heard from 283 feet away at 25 mph and four feet away from a car traveling 45 mph. Newer siren models rely on low-frequency sound waves that can penetrate solid materials. These models create a sense of urgency and adrenaline.


There are many different emergency call sound colors used in various jurisdictions. These colors can be confusing, but by learning what each one means, you can respond more quickly. The emergency response colors are communicated through overhead announcements and emails, and learning what they mean can help you be more prepared in the event of an emergency.

Sound waves

The emergency call is very loud for several reasons. One of them is that it can be heard from a distance of hundreds of feet, making it extremely difficult for a person to miss. This is a major problem, especially for drivers who have to pass the emergency call in a hurry.