Abstract
Against heavy-rainfall disasters, residents are required to acquire various information that a threat is approaching and take evacuation behavior. Information about a trigger of evacuation includes not only the one issued by governments but also the calling from neighbors and the notice of neighbors' actions. Residents are capable of making a robust decision on evacuation by relying on multiple information sources. As results, it became clear that increasing the perceived seriousness of damage and the perceived effectiveness of evacuation, and alleviating the troublesome about evacuation would contribute to enhancing evacuation intention. In addition, as for the factors specific to information, fostering trust of the information, enhancing the relationship among neighbors, increasing the recognition of an importance of cooperative actions for disaster risk reduction are important to foster evacuation intention of evacuation advisory, callings from neighbors, callings from people living in their upper stream, respectively.
