ON THE NOISE GENERATED BY A STREAM OF VEHICLES

THE NOISE GENERATED BY A STREAM OF TRAFFIC IS CONSIDERED USING AS A MODEL, A STREAM OF SIMPLE ACOUSTIC SOURCES. IN CONTRAST TO AN EARLIER ANALYSIS, THE POSSIBILITY OF A NEGATIVE EXPONENT HEADWAY DISTRIBUTION BETWEEN SUCCESSIVE CARS IS ALLOWED. THE MODEL IS SHOWN TO BE EQUIVALENT TO A SHOT PROCESS, AND THE CUMULANTS ARE READILY CALCULATED. IF TRAFFIC CONSISTS OF SEVERAL TYPES OF VEHICLES, EACH TYPE GENERATING NOISE OF A DIFFERENT INTENSITY, THEN IN THE LOW DENSITY REGIME THE TRAFFIC CAN BE REPRESENTED BY A SUPERPOSITION OF NONINTERACTING ACOUSTIC SOURCES. MODIFICATIONS OF THE SHOT NOISE MODEL CAN BE MADE TO TAKE INTO ACCOUNT SURFACE GRADIENTS OR SOUND-ABSORBING SURFACES BY A SUITABLE DISTRIBUTION OF ACOUSTIC SOURCES. /AUTHOR/

• Supplemental Notes:
  • Vol 4, No 3, PP 229-233
• Authors:
  • Weiss, G H
• Publication Date: 1970-10

Media Info

• Serial:
  • Transportation Research /UK/
  • Publisher: Pergamon Press, Incorporated

Subject/Index Terms

• TRT Terms: Acoustic equipment; Acoustic measuring instruments; Acoustics; Headways; Mathematical models; Noise; Pellets; Traffic noise
• Uncontrolled Terms: Models
• Old TRIS Terms: Acoustic measurement; Negative exponent; Shot noise
• Subject Areas: Environment; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00223388
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 25 1971 12:00AM