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Pavement Markings--Design and Typical Layout Details (2006) / Chapter Skim
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Appendix O - Channelizing Islands, Painted Medians, Paved Shoulders, and Approaches to Obstructions
Pages 117-121

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From page 117...
... Raised right-turn channelizing islands are marked by 8-in.wide solid lines on both sides of the gore area leading up to the island, and along the left edge line of the right-turn lane from the point where the island ends to the point where the line intersects the right edge line of the intersecting roadway. The rest of the raised island is surrounded by 4-in.-wide edge lines.
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From page 118...
... When the posted speed limit is more than 45 mph, the spacing of 24-in.-wide diagonal lines used in painted medians should be 40 ft. The edge lines surrounding right-turn channelizing islands are 8-in.-wide solid lines.
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From page 119...
... NORTH CAROLINA The spacing of 8-in.-wide diagonal lines or chevrons used in painted medians and channelizing islands is typically equal in feet to the posted speed limit in mph. The spacing of the diagonal lines can be increased to 200 ft or more on shoulders of Interstate roadways.
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From page 120...
... The edge lines surrounding triangular islands that have an area of 450 ft2 or more are 48-in.-wide solid white lines, and chevrons or cross-hatching lines are not used. WEST VIRGINIA Diagonal lines in painted medians are 12 in.
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From page 121...
... wide when the speed limit is 45 mph or more. Diagonal lines or chevrons in painted medians or islands are spaced at 20-ft intervals when the speed limit is 40 mph or less and at 80-ft intervals when the speed limit is 45 mph or more.
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Key Terms

  • painted medians
  • speed limit
  • edge lines
  • lines surrounding
  • channelizing islands

  • paved shoulders
  • posted speed
  • wide diagonal
  • painted islands
  • wide solid

  • chevron markings
  • surrounding raised
  • island diagonal
  • surrounding painted
  • solid lines

  • onal lines
  • white lines
  • oregon diagonal
  • colorado diagonal
  • pennsylvania diagonal

  • virginia diagonal
  • texas diagonal
  • five diagonal
  • utah diagonal
  • remaining diagonal

  • lines begin
  • lowest speed
  • painted median
  • painted island
  • lines instead


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