I can vouch for that personally. I live right up the street from one of the firehouses that goes on these calls. 5 pieces of equipment go roaring down the street headed for the highway into O'Hare. I can fire up the scanner and sometimes catch the inbound flight. A few occasions I have even watched them fly right over my house!
But yes, at least twice per week is the average. Thankfully, always uneventful.
Happy New Year all! May it be an uneventful one.
That can be a lot of noise.
A blessed New Year to you Right_Handed_Writer.