§ 97.09 MOTORIZED VEHICLES AND MOTORCYCLES ON PUBLIC RIGHT-OF-WAY.

   (A)   (1)   No person shall operate or cause to be operated a public or private motor vehicle or motorcycle on a public right-of-way at any time in such a manner that the sound level emitted by the motor vehicle or motorcycle exceeds the level set forth in Table 4.  All measurements shall be taken with a sound level meter meeting the standards of ANSI, or its successor body, for a Type El instrument as a minimum and shall be taken with a fast meter response.

      (2)   This section shall apply to the total noise from a vehicle or combination of attached vehicles and shall not be construed as limiting or precluding the enforcement of any other provision of this code relating to motor vehicle mufflers.

TABLE 4 MOTOR VEHICLE AND MOTORCYCLE SOUND LIMITS
Sound Level Limit, in dBA, in Relation to Posted Speed Limit Measured at 50 Feet or 15 Meters
Type of Motor Vehicle	35 mph or less		Over 35 mph
Any motor vehicle carrier of GVWR or GCWR or 10,000 lbs or more	86		90
	25 mph or less	Greater than 25 mph to 40 mph	Over 40 mph
Any motorcycle	76	80	84
Any other motor vehicle or any combination of vehicles towed by any motor vehicle	70	76	79

 

   (B)   For the purpose of enforcing the above levels, the standard measurement distance may be shortened to no less than 21 feet or increased to no more than 100 feet, applying the following correction factors, to be added or subtracted from the permitted sound level:

Measurement Distance (Feet)	Correction to Limit Sound Level, in dBA
21 or more but less than 29	+7
29 or more but not less than 32	+6
32 or more but less than 35	+5
35 or more but less than 39	+3
39 or more but less than 43	+2
43 or more but less than 48	+1
48 or more but less than 58	0
58 or more but less than 70	-1
70 or more but less than 83	-2
83 or more but less than 99	-3
99 or more but less than 118	-4

 

(Ord. 1766, passed 6-14-01)