01152349

Component

This paper discusses two approaches to establishing acoustic longevity of pavements. The PMS Approach tests a large number of pavements over a short period of time while the Test Section Approach uses a small number of sites tested over a long period of time. Both approaches can provide good results when properly applied. The advantage of the PMS approach is that tire and equipment effects can be minimized and a reasonable estimate of the acoustic longevity established in a very short period of time. The Test Section Approach allows greater experimental control but requires testing over a significantly long period of time to accurately assess acoustic longevity. A third approach can be developed by combining the PMS and Test Section approaches. Evaluations of diamond ground surfaces in Kansas are presented to demonstrate how these approaches can be used. The two major studies discussed in this paper arrived at significantly different results for the acoustic longevity of diamond ground surfaces. These differences are discussed with possible explanations for the seemingly contradictory results. The OBSI results from the Kansas and California testing presented in this study indicate that diamond ground concrete pavements exhibit little to no increase in noise level over the first five to ten years after grinding.

01147878

10-2814

English

14o

2010

Transportation Research Board 89th Annual Meeting

DVD

Figures; Maps; Photos; References (10)

Acoustics; Diamond interchanges; Pavement management systems; Test sections; Texture

Diamond ground; Longevity; Onboard systems

Highways; Materials; Pavements; I33: Other Materials used in Pavement Layers

Transportation Research Board Annual Meeting 2010 Paper #10-2814

TRIS, TRB

Jan 25 2010 11:22AM