The Development of a Refined Traffic Control Device, Centerline Rumble Strips

Approximately ten percent of all fatalities in the United States in 2002 were cross-over-centerline crashes (COCC) on rural roads (locals and interstate not included). Considering the societal impacts of these types of crashes, AASHTO's Strategic Highway Safety Plan has addressed COCC as a focus area for crash reduction. Considering the success of shoulder rumble strips (SRS) in preventing the number of run-off-road crashes, some states began using the shoulder rumble strip pattern and spacing on the centerline of two-lane roadways, in both rural and urban applications and on some divided freeways medians. Some concern has been raised over the use of identical rumble strip patterns on both the left and right side of the roadway. From a driver's perspective, there are potential issues associated with identical patterns and spacing that lead to driver confusion and incorrect vehicle adjustments when the rumble strips were encountered in a fixed-base-fully interactive dynamic driving simulator environment. Preliminary findings from the simulator research indicated that driver's response to centerline rumble strips was sometimes different than the desired reaction; some drivers encountering the SRS pattern/spacing on the centerline corrected to the left, potentially creating a hazardous situation. There is evidence to suggest that drivers have developed an a priori expectancy related to shoulder rumble strips that may carry to centerline rumble strips. This research focused on evaluating existing rumble strip patterns and spacing, complemented with the development of a unique centerline arrangement that is easily understood, eliciting a single-conditioned-automatic-correct response from the driver, while considering other locational criteria, that will ideally lead to a reduction in the number of COCC and associated fatalities.

Language

  • English

Media Info

  • Media Type: Print
  • Features: CD-ROM; Figures; References; Tables;
  • Pagination: 15p
  • Monograph Title: ITE 2005 Annual Meeting and Exhibit Compendium of Technical Papers

Subject/Index Terms

Filing Info

  • Accession Number: 01006865
  • Record Type: Publication
  • ISBN: 1933452080
  • Files: TRIS, ATRI
  • Created Date: Oct 21 2005 1:34PM