Alienation of Urban Structure and Short-term Population Redistribution After Earthquakes from Perspective of Resilient Cities

Abstract:

Based on the investigation of typical earthquake disasters， this paper reveals the phenomenon of post-earthquake urban structure alienation from the perspective of resilient cities. Based on the basic process of urban restoration， a key indicator named the social impact factor of urban systems is proposed， which couples engineering science with social science and further revises the function evaluation for the urban system resilience. Finally， based on the Agent model， this paper quantitatively studies the population redistribution for determining the social impact factor of urban systems， and quantitatively studies the influence of disaster prevention education， earthquake intensity， and post-earthquake crowd information communication efficiency on the short-term population redistribution.

Key words:resilient city;earthquake;urban structure;population distribution;Agent Model