Regulatory Implications of Truck Tire Noise Studies 740606

Based on the past research of the U.S. Department of Transportation, this paper is an attempt to make the case for tire noise regulation and to illustrate the implications of such regulations to tire users. The paper examines the effects of speed, load, tire tread type, road surface, and placement of tires on combination truck vehicles insofar as passby sound levels are concerned. A concluding table of expected roadside sound levels based upon typical tire use indicates the potential restrictions in tire types that are inherent in presently proposed federal noise regulations on interstate motor carriers. It is concluded that as significant technological improvements are implemented in the design and regulation of truck engine noise, more severe tire user requirements will follow in order that tire noise keep pace with declining engine noise.