Skip to main content

Impact of Shoulder Width and Median Width on Safety (2009) / Chapter Skim
Currently Skimming:


Pages 7-8

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 7...
... While safety must always be considered when selecting design values, the ramifications of cost restrictions and environmental concerns might warrant consideration of a reduced value for a design element. Proper designs should assess competing constraints and create a solution that meets mobility and safety objectives.
Read the entire page →
From page 8...
... The plan was reviewed by the NCHRP project panel, and adjustments were made to the direction of the work. The major adjustment was a departure from the original objective of identifying the safety implications from several design elements and focusing only on several specific cross-section elements: lane width, shoulder width and type, median width and type, and (possibly)
Read the entire page →

Key Terms

  • median width
  • shoulder width
  • nchrp project
  • operational impacts
  • design elements

  • safety manual
  • lane width
  • multilane rural
  • design element
  • rural multilane

  • accident modification
  • prediction models
  • sufficient data
  • tional impacts
  • project team

  • appropriate design


    • This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
    More information on Chapter Skim is available.