首页> 美国政府科技报告 >Nighttime Legibility of Ground-Mounted Traffic Signs as a Function of Font, Color, and Retroreflective Sheeting Type
【24h】

Nighttime Legibility of Ground-Mounted Traffic Signs as a Function of Font, Color, and Retroreflective Sheeting Type

机译:地面交通标志的夜间可读性作为字体,颜色和逆向反射片类型的函数

获取原文

摘要

A closed course nighttime legibility study measured legibility distance for 6 inch letters using Highway Series D and two experimental fonts, Clearview Condensed Road and a D-Modified font. Three types of retroreflective sheeting were tested: ASTM Types III, VIII, and IX. Forty-eight signs were used; all sign blanks were 12 inch x 30 inch with a border. Twenty-four participants, aged 55 - 75, drive a passenger sedan around a closed course at 30 mph while attempting to read ground-mounted signs on the right shoulder.

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号