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BULLET St. Louis City Revised Code Chapter 17.78 Vehicle Noise

St. Louis City Revised Code (annotated) has been converted to electronic format by the staff of the St. Louis Public Library. This electronic version has been done for the interest and convenience of the user. These are unofficial versions and should be used as unofficial copies.

Official printed copies of St. Louis City Revised Code may be obtained from the Register's Office at the St. Louis City Hall.



Chapter 17.78
Vehicle Noise

Sections:

17.78.010 Definitions.
17.78.020 Sound measurement.
17.78.030 Excessive noise prohibited.
17.78.040 Violations designated.
17.78.050 Exemptions.
17.78.060 Penalty for violation.
17.78.070 Lindell Boulevard and Newstead Avenue--Restrictions.
17.78.080 Lindell Boulevard and Newstead Avenue--Exemptions.
17.78.090 Sign placement.
17.78.100 Penalty for violation.

17.78.010 Definitions.

Unless otherwise expressly stated or the contents clearly indicates a different intention, the following terms shall have the meaning shown:

A. "dBA" means the composite abbreviation for A-weighted sound level, and the unit of sound level, the decibel.

B. "Gross vehicle weight rating" or "GVWR" means the value specified by the manufacturer as a loaded weight of a single vehicle.

C. "Muffler or sound dissipative device" means a device for abating the sound escaping gases of an internal combustion engine.

D. "Sound level" means the A-weighted sound pressure level measured with a fast response using an instrument complying with specifications for sound level meters of the American National Standards Institute, Inc. (ANSI SI.4-1971 or the latest approved revision thereof) or its successor bodies, except that only A-weighting and fast dynamic response need be provided.

E. "Sound level meter" will mean an apparatus or instrument including a microphone, amplifier, attenuator, output meter frequency weighting networks for the measurement of sound levels.
(Ord. 58602 1, 1982.)

17.78.020 Sound measurement.

A. The City shall adopt procedures which set forth criteria for the measurement of sound. Such procedures shall be revised from time to time to reflect current engineering judgment and advances in noise measurement techniques.

B. The City may provide for measurement at distances other than the 50 feet specified provided that correction factors are applied so that the sound levels so determined are substantially equivalent to those measured at 50 feet and measurement distance does not exceed 100 feet. The correction factors used shall be consistent with California Highway Patrol Sound Measurement Procedures HPH 83.1.
(Ord. 58602 2, 1982.)

17.78.030 Excessive noise prohibited.

It shall be unlawful for any person to operate or cause to be operated a motor vehicle or motorcycle on a public right-of-way at any time in such a manner the sound level emitted by the motor vehicle or motorcycle exceeds the level set forth herein, for the speed limit zone, regardless of the actual speed of the motor vehicle or motorcycle or any other manner prohibited by this section.

 

Sound Level in dBA

Vehicle Class

Speed Limit 35 mph or less

Speed Limit over 35 mph

Any motorcycle

82

86

Any other passenger car and/or other vehicles of GVWR of 10,000 lbs. or less

76

82

(Ord. 58602 3, 1982.)

17.78.040 Violations designated.

The following acts or the causing thereof are declared to be in violation of this chapter:

A. The sounding of any horn, or other auditory signaling device on or in any motor vehicle or motorcycle on any public right-of-way or public space, except as a warning of danger;

B. The sounding of any horn or other auditory signaling device which produces the sound level in excess of 85 dBA at 15 meters (50 feet), except as a warning of danger;

C. The operating, or causing to be operated, any motor vehicle or motorcycle not equipped with a muffler or other sound dissipative device in good working order and in constant operation;

D. The removing and rendering inoperative, or causing to be removed or rendered inoperative, other than for purposes of maintenance, repairs or replacement, any muffler sound dissipative device on a motor vehicle or motorcycle.
(Ord. 58602 4, 1982.)

17.78.050 Exemptions.

The following are exempt from the operation of this chapter:

A. Emergency vehicles, designated as such by the state or City, and ambulances on emergency call;

B. Construction or agricultural equipment and street maintenance equipment that are on a job site or traveling on street and highways.
(Ord. 58602 5, 1982.)

17.78.060 Penalty for violation.

Any person found guilty of violating any provision of this chapter shall be punished as provided by Section 1.12.010 of this code.
(Ord. 58602 7, 1982.)

17.78.070 Lindell Boulevard and Newstead Avenue--Restrictions.

No person shall operate or permit the operation of any engine or motor providing motive power to a commercial vehicle with a gross vehicle weight in excess of ten thousand (10,000) pounds, or any auxiliary engine or motor located on such vehicle, while such vehicle is parked or standing on Lindell Boulevard between Newstead Avenue and Taylor Avenue or on Newstead Avenue between West Pine Boulevard and Maryland Avenue.
(Ord. 61303 1 1989.)

17.78.080 Lindell Boulevard and Newstead Avenue--Exemptions.

Section 17.78.070 shall not apply to:

A. A vehicle in the process of delivering or picking up loads during such period of time as operation of the engine or motor is necessary to operate equipment used to load or unload the vehicle;

B. A vehicle stopped in a traffic lane because of traffic congestion;

C. A vehicle in the process of loading or unloading passengers; or

D. A vehicle with a refrigeration compartment which is in the processing of delivering perishable commodities, however, this exemption shall not apply to a vehicle if the engine or motor is being operated solely for the purpose of air-conditioning the passenger compartment of such vehicle.
(Ord. 61303 2, 1989.)

17.78.090 Sign placement.

The Traffic Administrator shall have such signs made as are necessary for purposes of enforcing this chapter. He shall cause such signs to be placed in a manner calculated to give adequate notice of the provisions of this chapter to the public.
(Ord. 61303 2, 1989.)

17.78.100 Penalty for violation.

No person, firm, partnership or corporation shall operate a vehicle in violation of the provisions of this chapter. Any person, firm, partnership or corporation that violates this chapter shall, upon conviction thereof, be punished by a fine of not less than fifty dollars ($50.00) or more than five hundred dollars ($500.00) or by imprisonment for not more than ninety (90) days, or by both such fine and imprisonment. Each day a violation exists shall be considered a separate offense.
(Ord. 61303 2, 1989.)

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