Automated Pedestrian Detection and Pedestrians Who Are Visually Impaired

This article describes a new type of accessible pedestrian signal to assist visually-impaired pedestrians with crossing the street. The signals have a loudspeaker integrated into the pedestrian pushbutton and feature tactually discriminable arrows aligned in the correct travel direction that vibrate during the walk interval. One feature of this APS is a locator tone that lets an approaching pedestrian know that they should push a button to get a WALK indication. The authors outline both the possible benefits and possible adverse consequences of automated pedestrian detection for visually-impaired pedestrians. Also discussed are the challenges to installing automated pedestrian detection at intersections that have APS, and the need for careful evaluation to determine if vehicular and pedestrian volumes make installation of automated pedestrian detection with APS appropriate.

  • Availability:
  • Authors:
    • Bentzen, Billie Louise (Beezy)
    • Barlow, Janet M
  • Publication Date: 2014-7


  • English

Media Info

  • Media Type: Print
  • Features: Figures; References;
  • Pagination: pp 24-28
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01538568
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 1 2014 12:12AM