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Evaluation of wide edgelines on two-lane rural roads : final report.

File Language:
English


Details

  • Creators:
    Cottrell, Benjamin H.
  • Corporate Creators:
    Virginia Transportation Research Council (VTRC)
  • Subject/TRT Terms:
  • Publication/ Report Number:
    VTRC 87-R23 ; FHWA/VA-87/R23
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    Virginia
  • Edition:
    Final report.Oct. 1983Mar. 1987.
  • Corporate Publisher:
    Virginia Transportation Research Council (VTRC)
  • Abstract:
    The effect of 8-in. wide edgelines on the incidence of run-off-the road (ROR) and related accidents was evaluated. The treatment locations consisted of three two-lane rural road sections totaling 55.2 miles. A before-and-after design with a comparison group, and a check for comparability were used to analyze data. Five years of accident data, covering the three years before wide edgeline installation and the two years after installation, were used. It was concluded that there is no evidence to indicate that wide edgelines significantly affected the incidence of ROR and related accidents for any individual treatment location or for the locations combined. The related accidents include ROR accidents involving driving under the influence of alcohol or drugs, ROR accidents on curves, ROR accidents during darkness, and opposite-direction accidents. Consequently, it was recommended that wide edgelines not be considered as a countermeasure for ROR accidents in Virginia.
  • Format:
    PDF
  • Download URL:
    https://rosap.ntl.bts.gov/view/dot/20443/dot_20443_DS1.pdf
  • File Type:
    Filetype[PDF - 1.49 MB]
  • Collection(s):
    US Transportation Collection
  • Main Document Checksum:
    urn:sha-512:9b3f9e00e70182545fd7d870a1ef69b3b481714fcb0aad1a05f7f16877aaba1a416d3f8ddd66bb12f2b3a934cf27e3c27c60732714d3acbab2e521d8039c486c
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