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Geometric Design Practices for Resurfacing, Restoration, and Rehabilitation (2011) / Chapter Skim
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Pages 3-4

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From page 3...
... Over time, the desire and the requirement to make safety improvements to existing facilities in need of pavement repair changed the objective of 3R projects to include "enhance safety." Subsequently, the issue became one of how much an existing roadway should be improved to achieve the safety objective. Should roads requiring pavement repair or other maintenance activities to extend their service life be brought up to full standards for geometric design or other design features?
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From page 4...
... However, some states are incorporating new safety tools and methods to include road safety audits/assessments and the application of safety models found in the new Highway Safety Manual. • Design speed, lane width, and shoulder width are considered the most important design elements of the 13 controlling design criteria.
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Key Terms

  • design speed
  • safety improvements
  • states responded
  • design element
  • curb ramps

  • design criteria
  • design manual
  • existing roadway
  • geometric design
  • safety improvement

  • road safety
  • safety audits
  • design elements
  • shoulder width
  • design exception

  • lane width
  • highway safety


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