Study on Drivers’ Comprehension and Response to Traffic Information on Advanced Graphical Route Information Panels Displaying Graphic Symbols

Graphical Route Information Panels (GRIPs) have been commonly used on expressways in Japan to provide drivers with en-route traffic information. Although GRIPs have much advantage over variable message signs (VMS), too much information and too complex displays may prevent drivers from proper understanding of the provided information. To enhance the level of service (LOS) of expressways, it is important to upgrade GRIPs and to understand drivers’ response. This study therefore investigates the impact of displaying pictograms and moving symbols on GRIPs on drivers’ comprehension and response to the information through an online survey. As a result, these findings are obtained; (i) pictograms and moving symbols are helpful for most drivers to understand the events information on GRIPs correctly; (ii) in terms of drivers’ comprehensibility there is possibility to provide information of natural events (fog and tidal wave) by displaying pictograms or moving symbols on GRIPs; and (iii) showing pictograms or moving symbols and providing natural events information significantly influence drivers’ route choice behavior.

• Supplemental Notes:
  • Abstract reprinted with permission from Intelligent Transportation Society of America.
• Corporate Authors:

  ITS America

  1100 17th Street, NW, 12th Floor
  Washington, DC  United States  20036
• Authors:
  • Shiomi, Yasuhiro
  • Kurauchi, Fumitaka
  • Uno, Nobuhiro
  • Shimamoto, Hiroshi
  • Yamamoto, Kouji
  • Tago, Kazutoshi
  • Tsuchihashi, Yoshihiko
• Conference:
  • 19th ITS World Congress
  • Location: Vienna , Austria
  • Date: 2012-10-22 to 2012-10-26
• Publication Date: 2012

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 13p
• Monograph Title: 19th ITS World Congress, Vienna, Austria, 22 to 26 October 2012

Subject/Index Terms

• TRT Terms: Driver performance; Graphics; Level of service; Real time information; Route choice; Surveys; Traveler information and communication systems; Variable message signs
• Geographic Terms: Japan
• Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning; I73: Traffic Control;

Filing Info

• Accession Number: 01501669
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 23 2013 7:52AM