California Department of Transportation
 

Typical Noise Levels

Intensity and the Decibel Scale


Source Intensity
Level
Decibel Scale
Instant Perforation of Eardrum 160 dB
Military Jet Takeoff 140 dB
Threshold of Pain 130 dB
Front Rows of Rock Concert 110 dB
Walkman at Maximum Level 100 dB
Vacuum Cleaner 80 dB
Busy Street Traffic 70 dB
Normal Conversation 60 dB
Whisper 20 dB
Rustling Leaves 10 dB
Threshold of Hearing (TOH) 0 dB
 

Loud Road Button
(WAV, 1.4MB)
Quiet Road Button
(WAV, 1.4MB)

Please forward any questions/comments/suggestions toShira Rajendra(shira_rajendra@dot.ca.gov). Last updated 04/29/2011.