ROLLING NOISE AND VEHICLE NOISE

For the purpose of this report vehicle noise is considered to consist of two parts, power train noise and rolling noise. Vehicles are classified by total noise into two groups and simplified descriptions of vehicle noise as a function of speed are presented. Estimates of rolling noise are compared with the vehicle noise relation. It is shown that rolling noise is the dominant noise source for light vehicles travelling in tip gear, and that it makes a measurable contribution both to the noise made by heavy vehicles when travelling in top gear and to the noise of light vehicles under urban conditions. Rolling noise is shown to limit the possibilities for developing quiet vehicles. Rolling noise has been the subject of a number of experimental studies and these are briefly reviewed. However as yet no completely satisfactory description of the mechanisms of rolling noise has been reported. An experimental investigation at the Transport and Road Research Laboratory has shown that for UK vehicles operating over typical UK road surfaces the major parameters of rolling noise are vehicle speed, whether the road is wet or dry, tyre tread pattern and road surface type. A comparison of braking force coefficients with rolling noise levels indicate that it is not necessarily true that reducing tyre noise must reduce adhesion. /Author/TRRL/

• Corporate Authors:

  Transport and Road Research Laboratory (TRRL)

  Wokingham, Berkshire  United Kingdom 
• Authors:
  • HARLAND, D G
• Publication Date: 1974

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: 15 p.

Subject/Index Terms

• TRT Terms: Brakes; Braking; Friction; Heavy vehicles; Moisture content; Motors; Pavement surface course; Pavements; Sound; Speed; Surfacing; Texture; Tire treads; Tires; Traffic noise; Vehicles; Wet weather
• Uncontrolled Terms: Wet conditions; Wet pavements
• Old TRIS Terms: Contact
• ITRD Terms: 5492: Aerodynamics; 1057: Air transport network; 1356: Body (car); 1874: Braking; 5440: Contact (tyre road); 1078: Lock (waterway); 6136: Measurement; 1334: Motor; 6748: Sound; 5408: Speed; 2972: Surfacing; 1381: Tyre; 1392: Tyre tread; 3015: Wet road
• Subject Areas: Highways; Pavements; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00097014
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: No. 652 Lab Rpt.
• Files: ITRD, TRIS, ATRI
• Created Date: Nov 5 1975 12:00AM