Tuesday, March 31, 2015

A month into the recording of Sound Levels in the Village of Justice IL.

Strange,


One month in and so far I cannot find a rhyme or reason for the variations in dB from day to day.   What confuses me more is that at midnight it could be 50dB!  It doesn't seem to be precipitation, temp and/or wind direction for variations between 38 to 50dB.  This has peaked my interest in continuing to see how the sound levels get throughout the year.  Who knows- maybe it is just time to move from the Village of Justice IL.  It would be a pure shame as the amount of time and money we invested in out property, a gardeners' dream.  The one thing for sure is the sound has increased over the past few years and if it reaches much higher in the 50 decibel range it can cause permanent damage to one's ears with constant sound.  We really enjoy living in the village- my hope is someone sees this and pushes harder to get not only some answers but for a solution.  I did contact the mayor and building dept, maybe I should start contacting trustees or even print up flyers.

I'm thinking of organizing the data a little better so I could release all of it.  This way anyone could crunch the numbers, so far I've been editing two sheets every morning.  Editing one sheet would be easier- just hope because of so many variables that it wouldn't be overwhelming.



Here is the link:
Sound levels in the Village of Justice IL

Wednesday, March 18, 2015

Village of Justice Illinois Sound Levels are loud

Village of Justice Illinois Sound Levels-

So,  we noticed about 2 years ago that the traffic noise had increased dramatically.  Considering an increase of 10 decibels gives the impression of the sound level doubling by most people- yes, studies have been done and I will try to find those and cite them.  I contacted public works and the current mayor.  The response from public works was that an incredible number of ash trees had been removed leading to the increase.  The mayor, on the other hand said he has been living in the village for 15+ years and had no sense of an increase in sound.  In fact it turns out he live only a few block away from me.  His response in no way was rude- he just pointed out he did not sense any increase in noise.


So- I started an experiment. I've been using a Bruel & Kjaer 2209 sound meter to check the sound levels in the morning.  Being about one mile from I-55 and I-294 (as a crow flies in both cases) I started measuring sound levels as I leave for work near 73rd and Oak Grove Ave. The link below is the doc I've been compiling.  In most cases the sound from I-294 direction is greater.


To give you some background, at 38 dB the road noise is very quiet and takes some effort to pick out.  At 42 dB the road noise is very tolerable, at 45 dB it starts to drowned out everything else, at 50 dB it sounds louder than the birds singing and can be heard through double pane windows if the house is quiet (e.g. sleeping at night).  No recordings are done while local traffic can be seen or heard and no trains.

Road wetness does make the traffic noise louder.

Village of Justice Sound levels in the morning