Conference Proceeding

Assessing Text Reading and Text Entry while Driving Using the Visual Occlusion Technique

  • Mahtab Ghazizadeh (University of Wisconsin-Madison, Madison, WI)
  • John D Lee (University of Wisconsin-Madison, Madison, WI)
  • Yiyun Peng (University of Washington, Seattle, Washington)
  • Linda Ng Boyle (University of Washington, Seattle, Washington)


This study estimated the time drivers spend completing text reading and text entry tasks of varying difficulty levels using visual occlusion to mimic the timesharing between driving and interacting with text. The findings showed that text entry took longer than text reading and task time increased with longer text length. In the occlusion condition, the total task time with vision unoccluded was shorter than the task time in the static condition, although this finding was not consistent across reading and entry. Ambient text (irrelevant text surrounding the text of interest) had no effect on time on task. These results should be considered in light of the acceptable limits for time on task and can inform the design of invehicle systems that require text reading or entry.

How to Cite:

Ghazizadeh, M. & Lee, J. & Peng, Y. & Boyle, L., (2013) “Assessing Text Reading and Text Entry while Driving Using the Visual Occlusion Technique”, Driving Assessment Conference 7(2013), 128-134. doi:

Rights: Copyright © 2013 the author(s)

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Published on
18 Jun 2013
Peer Reviewed