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Improvement of Conspicuity of Trailblazing signs: Phase 3: Evaluation of Fluorescent Colors; Final rept. 1 Sep 99-31 Jan 01
| 题名： | Improvement of Conspicuity of Trailblazing signs: Phase 3: Evaluation of Fluorescent Colors; Final rept. 1 Sep 99-31 Jan 01 |
| 作者： | Neale, V. L.; Anders, R. L.; Schreiner, C. S.; Brich, S. C. |
| 关键词： | Vehicular traffic control; Highway communication; Traffic control devices; Traffic safety; Accident prevention; Warning systems; Motor vehicle accidents; Visual perception; Highway construction; Traffic signs; Human factor engineering |
| 摘要： | This report represents a Phase III effort to design and evaluate further a new sign design for incident route trailblazing. A serious limitation of Phases I and II was that fluorescent colors were not evaluated. Laboratory research and anecdotal evidence suggest that the use of fluorescent colors on signs improves their conspicuity. Therefore, in Phase III, the following colors were evaluated along a contrived test route with an instrumented vehicle: black on fluorescent coral, fluorescent yellow on fluorescent purple, black on fluorescent yellow-green, and yellow on purple in non-fluorescent colors. The results indicate that there were no significant differences in driving performance among the four experimental sign color combinations. Regarding the subjective preference questionnaires, significant questionnaire results along with trend information suggest that the black on fluorescent yellow-green sign was the most preferred by younger and older drivers during both day and night visibility conditions. Nonetheless, this sign color has been assigned by the Federal Highway Administration for pedestrian, school, and bicycle crossings, which has eliminated the opportunity to use fluorescent yellow-green as a unique sign for trailblazing in incident management situations. |
| 总页数： | 66p |
| 报告类型： | 科技报告 |
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