Addendum to Perception and Interpretation of Advance Warning Signs on County Roads

This contract extension was granted to analyze data obtained in the original contract period at a level of detail not called for in the original contract nor permitted by the time constraints of the original contract schedule. These further analyses focused on two primary questions: (1) What sources of variation can be isolated within the overall pattern of driver recognition errors reported previously for the 16 signs tested in Project HR-256? (2) Were there systematic relations among data on the placement of signs in a simulated signing exercise and data on the respondents' ability to detect the presence of a sign in a visual field or their ability to recognize quickly and correctly a sign shown them or the speed with which these same persons can respond to a sign for a driver decision?

  • Record URL:
  • Corporate Authors:

    Iowa State University, Ames

    Engineering Research Institute
    Ames, IA  United States  50010

    Iowa Department of Transportation

    Highway Division, 800 Lincoln Way
    Ames, IA  United States  50010

    Iowa Department of Transportation

    Iowa Highway Research Board, 800 Lincoln Way
    Ames, IA  United States  50010
  • Authors:
    • Brewer, K A
    • Avant, L L
    • Woodman, W F
  • Publication Date: 1985-6


  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 69p

Subject/Index Terms

Filing Info

  • Accession Number: 01576118
  • Record Type: Publication
  • Report/Paper Numbers: HR-256, ERI Project 1641, ISU-ERI-Ames-85290
  • Created Date: Sep 11 2015 12:29PM