The legibility of LED traffic guide signs in urban tunnels

被引:0
|
作者
Pu, Yatian [1 ]
Chen, Feng [1 ]
Pan, Xiaodong [1 ]
Liang, Jieyu [1 ]
Peng, Haorong [1 ]
Wu, Yanyi [1 ]
机构
[1] Tongji Univ, Minist Educ, Key Lab Rd & Traff Engn, Shanghai, Peoples R China
来源
2017 4TH INTERNATIONAL CONFERENCE ON TRANSPORTATION INFORMATION AND SAFETY (ICTIS) | 2017年
基金
中国国家自然科学基金;
关键词
Traffic guide sign; Urban Tunnel; Legibility; Traffic Safety;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The legibility of traffic signs in urban tunnels is of great importance on traffic safety. To improve legibility of traffic signs, this paper attempts to assess the siting and layout of LED traffic guide signs by simulation and field tests. First, the test scenarios were built in DIALUX software, where drivers' legibility distance were recorded with regard to twenty-four signs with different colors, font sizes, and contrast ratios. Then, to confirm the results from simulation, twenty LED traffic guide signs with different layouts were designed. Different layouts were set up with varying sign sizes, height-width ratios, thickness of stroke and light emitting forms. By setting up those traffic guide signs, field tests are conducted on Tongji University campus, South Tibet road tunnel and Shangzhong tunnel in Shanghai. Finally, according to the experimental results, the optimal design for urban tunnels with speed of 60km/h is recommended regarding legibility distance.
引用
收藏
页码:1111 / 1116
页数:6
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