考虑间接到达高速公路信息指引需求的出口预告标志设计

Advance Cuide Sign Design Considering the Guidance Demand of Indirect Reached Freeway Information

围绕路网发达地区间接到达高速公路指引需求,为解决高速公路出口预告标志路名、地名信息数量阈值以及间接到达高速公路路名信息表现形式几个关键设计问题,进行了认知任务采用路名和地名信息相结合的室内静态认知实验,获取反应时间数据,通过重复测量方差分析得到:地名信息量和路名信息量对驾驶员的反应时间均具有显著影响,而且两者之间存在一定的交互作用,间接到达高速公路路名信息表现形式对反应时间没有显著影响.进一步研究获得1~4条路名信息条件下地名信息量的阈值,单路名、双路名、三路名及四路名条件下地名信息阈值分别为6、6、5、4.研究结果表明,出口预告标志应控制高速公路路名及地名信息量不超过阈值.

To meet guidance demand of indirect reached freeway in road network developed areas,and to solve several key design issues including road name,place name information quantity threshold and road name information layout,reaction time data was obtained through the static cognitive experiment with road name and place name combined cognitive tasks. The conclusion based on repeated measures analysis of variance （ANOVA） is dawn the quantity of place name and road name have a significant effect on the drivers’ reaction time ,and have interactions between them while the road name information layout has no significant effect. The quantity threshold of the place name under the condition of 1-4 road names was further studied,they were 6,6,5 and 4 under the conditions of single, double, three and four road name respectively. Results show that the numbers of road and place name should not exceed the threshold as the advance guide sign.