While their 130 decibels are slightly less than the truck train horns previously mentioned, that's still as loud as a jackhammer, so you'll get what you're looking for. The metal horn trumpets are ...

According to the Federal Railroad Administration, the decibel level of train horns is comparable to low flying aircraft and emergency vehicle sirens. The largest noise impact along the New Canaan ...

“I cannot answer for them as to regulations but did say I would see if the City can test the decibel levels.” In social media complaints, one resident said he understood the need for warnings at level ...