Implementation of Longitudinal Tining in Colorado

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.

Language

  • English

Media Info

  • Media Type: CD-ROM
  • Features: Figures; Photos;
  • Pagination: 7p
  • Monograph Title: TRB 86th Annual Meeting Compendium of Papers CD-ROM

Subject/Index Terms

Filing Info

  • Accession Number: 01045158
  • Record Type: Publication
  • Report/Paper Numbers: 07-2482
  • Files: TRIS, TRB
  • Created Date: Feb 8 2007 7:10PM