摘要
本文结合道路交通标线的组成及使用环境,对影响道路交通标线可视性的主要因素进行分析,提出标线可视性的关键评价指标——亮度;结合亮度参数,对不同测试条件(车型、灯光类型)下的道路交通标线开展最低视认亮度路面实测;考虑环境照明影响,构建不同照度环境,对不同标线样本进行最低可视亮度测试;针对雨夜环境下标线可视性对测量设备及测试环境的限制,在实验室构建雨夜环境下标线可视性测量环境,为标线可视性评价提供实验室测试环境及方法。
Based on the composition and environment of road traffic markings,this paper analyzed the main factors affecting the visibility of road traffic markings and proposed a key assessment indicator for the visibility of road markings一brightness.Based on brightness parameters,the minimum visual brightness of road surface was measured for the road traffic markings under different test conditions(vehicle models and light types).Given the influence of environmental lighting,different illumination environments were constructed to perform minimum visual brightness test on different marking samples.In view of the limitations of the marking visibility to the measuring equipment and the test environment on rainy nights,a rainy night marking visibility testing environment was constructed in the laboratory to provide a laboratory test environment and method for the marking visibility assessment.
出处
《道路交通科学技术》
2019年第6期23-30,共8页
Road Traffic Science & Technology
关键词
可视性
道路交通标线
表面亮度
雨夜环境
visibility
road traffic marking
surface brightness
rainy night environment
