Evaluation of the Effects of Visual Field on Road Sign Recognition

摘要

The objective of this study was utilized the head and eye-tracker system to examine the effects of visual field between sedan and mixed concrete truck on road sign recognition. Participants were asked to search the traffic signs on driving video and give a verbal report instantaneously for visual search. Results of ANOVA revealed that the mode of vertical direction of eye gaze were significant differences between two conditions. Lower eye gazes were found in higher visual field from mixed concrete truck than in sedan. In addition, subjects reported fast in video of mixed concrete truck than in sedan. According the fixations data, subjects search quickly on painted speed limit on road in mixed concrete truck as compared to search the post or cantilever speed limit sign in video of sedan. These findings can be used or further application on signage design, vehicle design, and driver support information system design.