01045158

Component

This paper presents a 5 year evaluation of nine test sections with varying textural characteristics. Nine test sections were constructed on I-70 near Denver, Colorado with varying textural characteristics. Texture depth, skid numbers at different speeds and their noise properties were measured and compared. Review of the acquired data revealed a definite relationship between speed, types of surface texture, and the magnitude of skid numbers. As speed increased, the skid numbers declined. This relationship was clearly more pronounced and consistent using the smooth tire. Longitudinal macrotexture and microtexture were the quietest surfaces. State standard transverse tining with 1-inch uniform spacing exhibited the highest noise level among all the test sections when measured with the microphone at the rear tire position. The Colorado Department of Transportation (CDOT) has adopted longitudinal tining as its preferred method of texturing concrete pavements since 1997. The results of this study indicated that longitudinal tining, in addition to possessing adequate frictional properties, provides lower noise than the CDOT’s standard transverse tining.

01042056

07-2482

English

7p

2007

Transportation Research Board 86th Annual Meeting

CD-ROM

Figures; Photos

Concrete pavements; Pavement design; Pavement distress; Pavement grooving; Pavement performance; Pavements; Texture; Transverse cracking

Colorado

Design; Highways; Materials; Pavements; I22: Design of Pavements, Railways and Guideways; I32: Concrete

Transportation Research Board Annual Meeting 2007 Paper #07-2482

TRIS, TRB

Feb 8 2007 7:10PM