TY - JOUR PY - 1996// TI - Visibility of text and icon highway signs under dynamic viewing conditions JO - Human factors A1 - Long, Gerald M. A1 - Kearns, Daniel F. SP - 690 EP - 701 VL - 38 IS - 4 N2 - Threshold sizes for accurate identification were determined for three different types of highway signs (text, icon, and modified icon) under two conditions of horizontal target motion (60° and 120° per second). The two iconic versions were superior to the text version in nearly all cases, and this benefit of the pictorial format was even more pronounced in the higher-velocity condition. The advantage of the modified icon signs over the standard icon signs that had been determined in previous work was replicated here under the low-velocity condition but essentially disappeared under the higher-velocity condition. Sign-reading performance was found to be related to dynamic visual acuity (with Landolt-C targets) under the two velocity conditions. Results are discussed in terms of the "low-pass format" for sign design suggested by previous researchers and in terms of the potential utility of dynamic acuity for the driving setting.
Language: en
LA - en SN - 0018-7208 UR - http://dx.doi.org/10.1518/001872096778827215 ID - ref1 ER -