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Adaptive Research on Urban Shelter and Evacuation System Plan Coping with Catastrophe

Taken examples of recent major disasters，the deficiencies of shelter and evacuation system in planning，construction, etc.. and the inadaptability of protecting security needs of the city under extreme disasters is analyzed. Given this, on the basis of the analysis of the connotation of catastrophic environment and adaptation and the relationship between them, the concept of adaptive planning of urban shelter and evacuation system under the disastrous environment is proposed. Based on dynamic planning idea, the adaptive planning is preliminarily discussed in the three perspectives of disaster prevention functions, fortification level, hierarchical structures and spatial characteristics and some planning strategies and measures coping with catastrophes are given.