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Geometric Design Practices for Resurfacing, Restoration, and Rehabilitation (2011) / Chapter Skim
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Pages 46-48

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From page 47...
... No recommendation was made for multi-lane roads. Horizontal Curvature and Superelevation Recommendation 6: Highway agencies should increase the superelevation of horizontal curves when the design speed of an existing curve is below the running speeds (85th percentile)
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From page 48...
... when widening lanes and shoulders unless warranted by special circumstances; and • Remove, relocate, or shield isolated roadside obstacles. Pavement Edge Drop and Shoulder Type Recommendation 11: To reduce pavement edge-drop hazards on highways with narrow paved shoulders, highway agencies should either: • Selectively pave shoulders at points where out-of-lane vehicle encroachments and pavement edge-drop problems are likely to develop (e.g., at horizontal curves)
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Key Terms

  • design speed
  • resurfacing projects
  • sight distance
  • horizontal curves
  • existing curve

  • pavement edge
  • stopping sight
  • state highway
  • shoulder width
  • zontal curvature

  • lane width
  • minimum stopping


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