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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
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Driver Comprehension of Signs
Pages 32-33

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From page 32...
... Interpretation reflects the relationships among the driver, the sign, and the referent or message associated with the sign; it includes parameters such as whether the driver comprehends the meaning, intent, or purpose of the sign. This guideline identifies message format recommendations for improving drivers' comprehension of road signs.
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From page 33...
... Design Issues Comprehension tests are evaluation techniques that provide a means to determine whether a candidate sign for a roadway message is likely to be properly understood by typical roadway users. Overall, a rigorous and iterative evaluation process will increase the likelihood that the implementation of the sign on the roadway will improve overall traffic safety, and not detract from it.
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Key Terms

  • complex messages
  • road signs
  • empirical data
  • message format
  • expert judgment

  • symbolic traffic
  • highly complex
  • information transmission
  • actual driving
  • numerical differences

  • symbol complexity
  • candidate sign
  • evaluation techniques
  • format based
  • roadway users

  • overall traffic
  • message associated
  • design issues
  • graphic messages
  • special knowledge

  • sae information
  • following guidelines
  • information report
  • properly understood
  • rapid comprehension

  • references presentation
  • visually degraded
  • driver actions
  • consider message
  • knowledge particular


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