1Disaster evacuation behavior
International tourists are a distinctly vulnerable population: they lack shelter knowledge and spatial familiarity, and institutional planning largely assumes they will follow social cues from residents, an assumption survey research contradicts.
2Risk perception & affect
Following Slovic, risk evaluation is affective before it is analytical. A sign must not only be visible and legible; it must feel dangerous to compel action under stress. Comprehension alone does not produce behavior.
3Linguistic landscape
Non-Japanese readers face structural exclusion from safety-critical information; monolingual signage and kanji-dependent pictograms reproduce the exclusion they were meant to overcome.
4Cross-cultural pictograms
Empirical studies dismantle the assumption of universal pictograms: in one study, 52 of 54 expertly designed, ISO-validated icons failed an 85% comprehension threshold across two cultures.
5Wayfinding & the built environment
Urban structure can reinforce or suppress the willingness to evacuate. In emergencies people default to familiar routes and prior spatial knowledge, precisely what tourists do not possess.
The framing
Taken together, these domains reposition evacuation signage from compliant infrastructure to a cross-cultural communication system, one currently failing a significant and growing portion of its audience.