DU Zhi-gang, PAN Xiao-dong, GUO Xue-bin. Relationship between information quantity and visual cognition of traffic guide sign[J]. Journal of Traffic and Transportation Engineering, 2008, 8(1): 118-122.
Citation: DU Zhi-gang, PAN Xiao-dong, GUO Xue-bin. Relationship between information quantity and visual cognition of traffic guide sign[J]. Journal of Traffic and Transportation Engineering, 2008, 8(1): 118-122.

Relationship between information quantity and visual cognition of traffic guide sign

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  • Author Bio:

    Du Zhi-gang(1977-), male, PhD, lecturer, +86-27-82969851, zhig_du7@163.com

  • Received Date: 2007-10-12
  • Publish Date: 2008-02-25
  • In order to ascertain the rational road name number of traffic guide sign, using EMR-HM8 eye tracker system, the relationship between information quantity and visual cognition of traffic guide sign was analyzed based on many indoor simulation experiments, visual cognition of guide sign with target road name was compared with that with non-target road name. Analysis result shows that when the road name number of guide sign is 2~7, the reaction time of visual cognition is less than 2.50 s and it has significantly linear positive relationship with road name number; the visual cognition time of target road name sign is less than that of non-target road name sign obviously, and their average difference is 0.52 s. The suggested value of visual cognition reaction time is 2.00 s when road name number is less than 5 and the vehicle speed is not bigger than 50 km·h-1; the suggested value is 2.50 s in other condition; the rational road name number of guide sign is less than 5.

     

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