2021 Volume 39 Pages 391-399
To identify the appropriate interval for tsunami evacuation guidance signs, experiments in a university campus with students and faculty members were conducted. Using a 500m stretch of main street at the campus as a tsunami evacuation route, we investigated how far subjects would continue to follow instructions on signs and where they would get anxious after passing the signs. By analyzing behaviors of the subjects, the following conclusions were obtained. (1) There is no necessity to consider the subject's distance evaluation when determining the interval of the signs. (2) There is little need to consider the guiding distance when determining the interval of the signs. (3) It is desirable to place signs at intervals of 150m to 200m even if evacuation route continues to go straight.
