Decibel Scale of Common Sounds

CHECK IT OUT HERE:

Motorcycle, power lawn mower, garbage truck - 100 DB

Diesel Truck, urban street - 90 DB

Garbage disposal, dishwasher - 80 DB

Freeway traffic at 15 M, vacuum cleaner - 70 DB

Skateboarding 55-65 DB at 50 feet (see study below)

Conversation in restaurant, office, background music - 60 DB

Check out this quote from HERE:

"A noise meter reading conducted by the former Director of Safety at TRW showed skate parks to be the same as or quieter than swimming pools when comparing decibel levels."

"It was also reported that there are 16 million skateboarders in the US compared to 9 million registered little leaguers."

Another study done HERE:

"The result of a rider hitting the nose or tail on another hard surface creates a sound that one might compare to the short instantaneous sound a baseball makes when hit by a bat Instantaneous sound levels for an individual skateboard making the tail popping type of sound range from approximately 65 to 71 decibels (dBA Fast) at fifty feet. This sound is very short in duration and easily controlled by the use of any basic barrier or obstruction."

"One of the goals that modern skateboarders attempt to achieve is sliding along metal surfaces in the skateboard park on their trucks. The noise can best be described as a metal grinding type of sound. Imagine rubbing two pieces of steel together. This sound can be minimized by pumping in a sand like substance into the actual metal pipes that the skateboarders ride over. r The sand or some other resilient material limits the ability of the metal to resonate sound into the community. A little engineering work up front can help to virtually eliminate this source of sound from being a concern. This sound ranged from 54 to 63 decibels (dBA Fast) at fifty feet."

"The loudest sound level predicted above is 65 dBA. This sound level is comparable to the level of a moderate conversation between two individuals. Average conversational levels have been noted in my experience to range from 59 ABA to 63 dBA."

And check this out from HERE:

"a similar study from an October 20, 2006 newsletter of the LifeTips Web site found the following: "One of the most common misperceptions about skate parks is that the noise created by their users will surpass code limits and upset the community. But the reality is quite different. In a recent study, it was found that peak skate park noise levels averaged 70 decibels from 50 feet away. In comparison, from the same 50 feet away a dishwasher and toilet produce comparable decibel levels. A football game produces 117 decibels, heavy traffic 85 decibels and a home refrigerator 50 decibels. All in all, a skatepark is no more noisy than similar recreation areas like a basketball court or children’s playground" (LifeTips 2006)."