基于轮椅使用者的地铁导向标志可达性研究

为提升轮椅使用者的地铁出行效率,本实验对当前北京地铁导向标志系统的指引可达性进行了研究。实验选取了影响指引可达性的路线复杂度和无障碍导向标志可用性作为自变量,寻路中的中断、迷茫、用时作为因变量,通过AHP层次分析法和定量分析选择实验路线,招募参试者实地测试使用轮椅出行的效率。结果表明,复杂度对中断、迷茫和用时有显著影响;可用性对迷茫和用时有显著影响;岔路口是制约轮椅使用者寻路的关键位置。可见降低路线复杂度,提升特定岔路口处无障碍导向标志的可用性,均能提高轮椅使用者的寻路绩效。根据实验结果,建议复杂度和可用性在所给参考范围内,有利于轮椅使用者的出行保持较高效率。

A study on the accessibility of subway guidance signs based on wheelchair users

In order to improve the efficiency of subway travel for wheelchair users, the accessibility of current Beijing subway guidance signage system is used to investigate in this experiment. The experiment selected two factors affecting the accessibility of the guidance, route complexity and the availability of accessible guide signs, as independent variables, and selected interruption, confusion, and time spent in the way-finding as dependent variables. The experimental route were selected by the analytic hierarchy process and quantitative analysis, and participants were recruited to field test the efficiency of using wheelchairs for travel. The results show that complexity has significant effects on interruptions, confusion, and time spent; usability has significant effects on confusion and time spent; and intersections are key locations that constrain wheelchair users" way-finding performance. It is concluded that reducing route complexity and improving the usability of accessible signs at specific intersections can both improve the way-finding efficiency of wheelchair users. According to the experimental results, it is suggested that the complexity and usability remain under the given reference range, in order to maintain a higher efficiency of wheelchair users" travel.