摘要
从信息论和驾驶员视认心理角度,提出交通标志信息量的度量标准,通过实验的方法获得交通标志信息过载阈值;根据信息过载的属性,分为信息数量过载和信息质量过载,建立路段交通标志信息量过载阈值计算数学模型,计算出不同速度对应的路段交通标志信息量数量过载阈值及其建议阈值;以西安绕城高速公路的标志设计为实例,为设计、管理人员提供可参考的道路交通标志信息过载阈值建议值。
looking at information theory and the diver＇s identifying mentality angle, the traffic sign information amounts modules are presented, and through the experiment method the threshold value of the traffic sign information overload are gained. According to information overload＇s nature, the quantity overload of information and quality overload of information are divided, mathematical model is set up and the overload threshold value of the traffic sign information and the suggestion threshold value which correspondence the friction speed road are calculated. Taking the circle expressway＇s sign design in Xi＇an City as an example,the proposed threshold value of traffic sign information overload for designer and manager is offered.
出处
《公路》
北大核心
2009年第4期174-180,共7页
Highway
基金
国家高技术研究发展计划(863计划),项目编号2007AA11Z248
关键词
交通标志
信息过载阈值
信息量度量
信息数量过载
信息质量过载
traffic sign
information overload threshold value
measuring amount of information
quantity overload of information
quality overload of information
