THE EFFECT OF PLANTINGS ON MEDIAN ACCIDENTS. FINAL REPORT

This study was done to determine if median plantings influence the accident rate. The median, cross-median and overturned vehicle accident rates were determined for locations with medians having no barrier and cable barrier with and without plantings. Four years of accident data were used in the study. The accident rates were compared using the chi-square test on the four-year total and by the yearly trend. Conclusions from this research show that the median accident rates are the same for cable barrier with and without plantings. The median accident rates for no barrier with plantings, however, are higher than for no barrier without plantings except for fatal accidents which are the same. For cross-median accidents, the rates are the same for cable barrier with and without plantings. For medians with no barrier without plantings, the cross-median accident rates are higher for total and PDO accidents than for no barrier with plantings. For planted medians with or without cable barrier, the overturned vehicle accidents are higher except for fatal accidents which are the same.

  • Corporate Authors:

    California Department of Transportation

    1120 N Street
    Sacramento, CA  United States  95814
  • Authors:
    • Moore, R
    • CUTLER, C D
  • Publication Date: 1992-6

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 51 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00624969
  • Record Type: Publication
  • Report/Paper Numbers: CALTRANS-TO-92-2, Rept 51-358-908074
  • Files: TRIS, STATEDOT
  • Created Date: Sep 21 1996 12:00AM