Skip to main content

Human Factors Guidelines for Road Systems - Collection C: Chapters 16, 17, 18, 19, 20, 22 (Tutorials 4, 5, 6), 23 (Updated), 24, 25, 26 (Updated) (2010) / Chapter Skim
Currently Skimming:

Markings for Roundabouts
Pages 60-61

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 60...
... Design Guidelines Luminance contrast between the curb markings and the pavement should be: 2.0 or higher for roundabouts with overhead lighting 3.0 or higher for roundabouts without overhead lighting Luminance contrast is calculated by: Lstripe ­ Lpavement Luminance contrast = Lpavement Where: Lstripe = the luminance of the pavement marking Lpavement = the luminance of the pavement RECOMMENDED ROUNDABOUT PAVEMENT MARKINGS 200 mm (8 in)
Read the entire page →
From page 61...
... Such markings include broken white lines, solid white lines, solid yellow lines, crosswalk markings, and roadway marking text "Yield". Roundabout lane markings follow the logic that yellow lines denote opposing traffic and white lines denote traffic moving in the same direction.
Read the entire page →

Key Terms

  • solid white
  • stopping sight
  • pavement markings
  • intersection sight
  • central island

  • white lines
  • roundabout pavement
  • lane markings
  • vehicle speeds
  • opposing traffic

  • lines denote
  • yellow lines
  • traditional intersections
  • yield line
  • broken white

  • bicycle lane
  • empirical data
  • potential conflicts
  • expert judgment
  • recommended roundabout

  • solid yellow
  • fundamental difference
  • minimum intersection
  • previous page
  • requirement poses

  • marking text
  • approach roundabouts
  • provide drivers
  • markings include
  • pedestrian crossings


    • 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.