The Metropolitan Police Department reported that the majority of traffic fatalities were elderly. It is show that there are many traffic accidents while walking. In this study, we evaluated the visual cognitive function of 28 elderly people using a simulated road crossing task using a head-mounted display for the purpose of preventing accidents that occurred while the elderly were walking. In addition, walking speed and locomotive syndrome were also used for physical function evaluation. As a result, 18 subjects (64.3%) were able to cross safely when estimated based on walking speed. We believe that this approach can contribute to traffic safety.