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Roles of Retroreflective Arm Treatments and Arm Motion in Nighttime Pedestrian Conspicuity.
| 题名： | Roles of Retroreflective Arm Treatments and Arm Motion in Nighttime Pedestrian Conspicuity. |
| 作者： | sayer, j. r. mefford, m. l. |
| 关键词： | *Night-driving; *Pedestrian-visibility; *Retroreflection-.;Sight-distances; Pedestrian-safety; Detection-; Reflective-materials. |
| 摘要： | The present study attempts to build upon recommendations from previous research by examining the effects of placing retro reflectors on a pedestrian's arm, in a naturalistic driving environment, while examining the effects of scene complexity, pedestrian motion, and the orientation of the pedestrian relative to traffic. Under dynamic nighttime viewing conditions, with participants driving instrumented vehicles on a prescribed route along public roads, the present study addressed the following specific questions related to the conspicuity of retro reflective safety garments for pedestrians: How does the visual complexity of the nighttime environment affect retro reflective garment conspicuity; What role does arm motion, simulating biomotion, have on the distance at which pedestrians are detected; Is there an effect of ANSI/ISEA safety garment classification on conspicuity, where the manipulation is the amount (area) of the retro reflective trim on the arm of the garment; and How does a pedestrian's orientation relative to the flow of traffic (facing or perpendicular to) affect the distance at which they are first detected. |
| 报告类型： | 科技报告 |
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