The Effect of In-Vehicle Advanced Signs on Older and Younger Drivers’ Intersection Performance

An experimental study was conducted to determine if intersection behavior of those 18 to 24 and 65+ benefited from advanced in-vehicle signs presented in a head-up display (HUD) format. Using the University of Calgary Driving Simulator (UCDS) to measure intersection performance in the presence of the advanced sign until drivers stopped or cleared the intersection. Two in-vehicle signs, presented in a head-up display format, were evaluated to determine if intersection performance improved or whether unwanted adaptive behaviors occurred. In-vehicle signs facilitated more younger and older drivers to come to a stop at intersections with relatively short yellow onsets. In addition, the speed of those who stopped and those who proceeded through the intersection was reduced by the in-vehicle signs. The velocity reduction produced by the in-vehicle signs was greatest at yellow onset and progressively less effective at stop-line and intersection exit measurement locations. The primary behavioral influence of the in-vehicle signs was on removing the drivers foot from the accelerator in advance of the light changes. Older drivers had slower intersection approach speeds, stopped more accurately and were more likely to not clear the intersection before the traffic light turned to all red, than younger drivers.

  • Corporate Authors:

    ITS America

    1100 17th Street, NW, 12th Floor
    Washington, DC  United States  20036
  • Authors:
    • Caird, J K
    • Chisholm, S L
    • Lockhart, J
  • Conference:
  • Publication Date: 2005


  • English

Media Info

  • Media Type: Print
  • Features: CD-ROM; Figures; References;
  • Pagination: 7p
  • Monograph Title: Proceedings of the 12th World Congress on Intelligent Transport Systems

Subject/Index Terms

Filing Info

  • Accession Number: 01015738
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 16 2005 11:04AM