“特色交通标志”设计及其信息量度量方法研究

为提高道路交通标志准确适时的信息传递功能,在对交通标志信息传递原理进行分析的基础上,对"特色交通标志"的设计及交通标志承载的信息量量化方法进行深入研究。基于以人为本的思想,提出便于用路者辨识的"特色交通标志"设计理念,并以青藏公路为例,设计具有西藏地域特色的人性化交通标志。将视觉选择性原理引入到传统信息传递过程中,建立特色交通标志信息传递的理论模型。结合信息论中信息度量方法,提出交通标志信息量数学量化方法,并将普通交通标志与"特色交通标志"的信息量进行对比。结果表明:"特色交通标志"信息量往往较大,但在不超过标志承载最大信息量286.3 bit的前提下,"特色交通标志"信息传递性更强,更易使人们接受。

Design of"Feature Traffic Sign"and Its Information Measurement

To improve the accuracy and timeliness of information transmission of traffic sign,a design method for "feature traffic sign" and its information quantification way are deeply studied based on the analysis of information transmission principle of traffic sign.The design concept for "feature traffic sign" that was better identified is put forward based on people-oriented sense;Humanized traffic sign that has Tibetan regional characteristic is designed for the highway of Qinghai-Tibet.Then,a theoretical model for feature traffic sign information transmission is established by introducing the traditional theory of visual selection into the information transfer process,a mathematical method for traffic sign information quantification measurement is put forward by using the information measurement method in formation theory.The quantity of information transmitted by ordinary traffic sign and "feature traffic sign" is compared.The results show that the quantity of information transmitted by "feature traffic sign" is larger than that by ordinary traffic sign;the function of information transmission by "feature traffic sign" is stronger and the way of information transmission by "feature traffic sign" is more acceptable within the quantity of 286.3 bit