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Evaluation of the Clearview Font for Negative Contrast Traffic Signs.
| 题名： | Evaluation of the Clearview Font for Negative Contrast Traffic Signs. |
| 作者： | CARLSON, P. J.; CHRYSLER, S. T.; HOLICK, A. J.; PARK, E. S. |
| 关键词： | SIGN LEGIBILITY; TRAFFIC SIGNS |
| 摘要： | Texas Department of Transportation (TxDOT) sponsored research has shown that the Clearview font provides longer legibility distances than the Highway Gothic font Series E (Modified) when used on freeway guide signs with positive contrast of white letters on a dark background. Additional studies have shown that Clearview outperforms other versions of Highway Gothic fonts on other, smaller types of guide signs. These results have helped support the adoption of the Clearview font into the Federal Highway Administration's (FHWA) Standard Highway Signs book. The Clearview font has been developed with two sets of fonts-one for positive contrast signs and another for negative contrast signs. Prior to this research project, there were no studies documenting the performance of the Clearview font for negative contrast signs such as those found in the regulatory and warning sign series. This research project evaluated the negative contrast Clearview font in black letters on fluorescent yellow, fluorescent orange, and white backgrounds. The researchers performed a laptop-based presentation survey and a closed-course field study. The laptop survey used static, in-context sign images to compare sign fonts. The field study was a dynamic recognition and legibility test using full-sized retroreflective signs during the day and at night. The field study compared the standard font to three treatments of the Clearview font. |
| 报告类型： | 科技报告 |
相关文献
- Clearview Font on Negative Contrast Traffic Signs: Summary Report.
- Guide Signing for Two-Lane Exits with an Option Lane: Evaluation of Human Factors.
- Legibility of the Clearview Typeface System versus Standard Highway Alphabets on Negative- and Positive-Contrast Signs
- Legibility of the Clearview Typeface System versus Standard Highway Alphabets on Negative- and Positive-Contrast Signs.
- EVALUATION OF CLEARVIEW ON FREEWAY GUIDE SIGNS WITH MICROPRISMATIC SHEETING.
- EFFECTS OF FONT AND CAPITALIZATION ON LEGIBILITY OF GUIDE SIGNS.
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