Thanks for the follow-up, Dick. I used to have a direct link to those 1959 agreements/regulations/ordinances (or least an official oblique reference), but it's gone missing; any ideas? I was becoming curious again today, and can't find them...
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I used to have a copy, and from my memory (which is rapidly becoming "senior"), and based on discussions with Jim Haynes many years ago, the 89 db limit is what the state uses (or used to use) for cars and trucks at 60 MPH on the highway. Hence, it can not be louder than what one would expect to hear standing next to I-95.
Of course, this ignores the sound emissions from a highway being, basically, a line source while the single car on the track is a point source, along with a number of other differences like full throttle vs. constant speed. (Along with the injunction, I also had a copy of all the state laws and rules, but those are missing as well.)
Dave Lyons - TACT is for people not witty enough to be SARCASTIC.
Latte is French for "You paid too much for your coffee."
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