Accurate understanding is a dominant factor for the effectiveness of a traffic sign system. With poor comprehension, memory for sign meanings and the likelihood of prompting effective driver reactions
نویسنده
چکیده
Traffic signs are effective only when users clearly understand their meaning. This paper reviews recent studies concerning traffic sign comprehension and finds that unsatisfactory comprehension is a common problem for drivers in many countries. The influence of user characteristics and sign cognitive features on understanding levels are summarized and discussed. While the positive relation between comprehension level and educational background is confirmed by various researchers, conclusions about effects of other factors are not unanimous. Finally, possible future traffic sign comprehension research topics and directions for future research are proposed to fill the present knowledge gap.
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