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The intensity level of a train siren typically ranges from 90 to 110 decibels (dB) when measured at a distance of about 100 feet. This high intensity is designed to ensure that the siren is audible over significant distances and background noise, alerting pedestrians and vehicles of an approaching train. Prolonged exposure to sounds at this level can cause hearing damage, highlighting the importance of safety measures around railway crossings.

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2mo ago

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How much greater is the sound pressure level of a 100 dB siren than an 80 dB alarm clock How much louder would most people perceive the siren to be?

The sound pressure level of a 100 dB siren is 100 times greater than that of an 80 dB alarm clock. Most people would perceive the 100 dB siren to be around twice as loud compared to the 80 dB alarm clock due to the logarithmic nature of the decibel scale and human perception of sound intensity.


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