Comprehensive Evaluation Model for In-vehicle Interface Text Length Assessment
In-vehicle infotainment system(IVIS)plays a key role in traveling.As text is the main element of IVIS interface design,evaluating the threshold of the number of Chinese characters in a single line in order to improve the efficiency of information transmission and reduce the risk of driving has become an urgent problem.In this study,based on driving simulation experiment and considering Miller's short-term memory capacity principle,the optimal threshold for the number of Chinese characters in a single line of the IVIS interface was investigated using univariate analysis of variance(ANOVA)and synthetic evaluation model.The results of the synthetic evaluation model showed that a single line of 5 characters,as the minimum limit of short-term memory capacity,demonstrates the best overall performance,sufficient to convey core information and reduce the cognitive load on drivers.Future designs should take into account the cognitive limitations of human short-term memory and find a balance between the integrity of information delivery and the cognitive burden of driving to enhance the ease of use and interactive safety of the IVIS interface.
In-vehicle Information Systems(IVIS)Human machine interaction designChinese characters informativeSynthetic evaluation