<p>In Japan, there have been many fatal accidents involving children and the elderly at home. In recent years, there has been a lot of research on dangerous situations visualization using VR environments. In this study, we propose a new method for visualizing dangerous situations in the living environment considering two kinds of time flow, time in a lifetime and time in a day. To validate the proposed method, we developed a prototype system using 358,175 emergency transport case data from the Tokyo Fire Department, survey data on people's daily activities, and multiple 3D home models. We confirmed that the system can present not only accidents associated with age and location but also those associated with parents' and caregivers' behaviors, thus confirming the validity of the proposed method.</p>
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