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This study developed and evaluated two tsunami evacuation guidance apps tailored specifically for visitors: one utilizing detailed 3D city models and another employing augmented reality (AR) technology. Field experiments were conducted in Osaka’s Umeda District, an urban area with high visitor density, to assess whether these technologies could effectively support evacuation among non-residents unfamiliar with local geography. The 3D city model-based application showed high evacuation performance, achieving an overall success rate of 88%, with participants in their 20s and 30s attaining a 100% success rate. However, older participants, particularly those in their 60s, encountered difficulties with certain interface features, indicating the necessity for simplified navigation controls to accommodate a broader demographic. The AR-based application demonstrated strong potential, enabling all 16 participants—university students in their 20s—to successfully evacuate within the allocated time, underscoring AR technology’s capability to provide intuitive, immersive guidance even in complex urban environments. These findings provide empirical evidence supporting the integration of realistic 3D visuals and AR interfaces into evacuation systems.

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Tsunami Evacuation Guidance for Visitors Using Digital Technology

  • 会议论文

  • 发表日期：

    2026年

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  • Yuto Inada,
  • Keita Yamaguchi,
  • Tomoyuki Takabatake

摘要

This study developed and evaluated two tsunami evacuation guidance apps tailored specifically for visitors: one utilizing detailed 3D city models and another employing augmented reality (AR) technology. Field experiments were conducted in Osaka’s Umeda District, an urban area with high visitor density, to assess whether these technologies could effectively support evacuation among non-residents unfamiliar with local geography. The 3D city model-based application showed high evacuation performance, achieving an overall success rate of 88%, with participants in their 20s and 30s attaining a 100% success rate. However, older participants, particularly those in their 60s, encountered difficulties with certain interface features, indicating the necessity for simplified navigation controls to accommodate a broader demographic. The AR-based application demonstrated strong potential, enabling all 16 participants—university students in their 20s—to successfully evacuate within the allocated time, underscoring AR technology’s capability to provide intuitive, immersive guidance even in complex urban environments. These findings provide empirical evidence supporting the integration of realistic 3D visuals and AR interfaces into evacuation systems.