The study's major issues are the types of earthquake; it compares survey in field with volume of evaluation in "Principles of Urban disaster-prevention-system setting", then attempts to set up the regulations of Taiwan urban disaster-prevention. The research area are defined by RenAi Rd. in South, DunHua S. Rd. and Kelang Rd. in West, SinHai Rd. in North and SinSheng S. Rd. in east, which includes JianGuo overpass, MuZha line of Mass rapid transit, DaAn park, residential district commercial district, office buildings, lower housing and automobile repair district etc, while its tend to contain variety. It analysis the differentiation between volume of evaluation and built-environ went in pedestrian paths, commercial signboards, in frustration, parking, fence, planting, overpass, electricity, communication and location of setting of arcades by using computers, surveying in field and analysis in statistics. According to result, it erases factors which hinder the circulation of disaster-prevention, and calculation it's available with. To testify reflection of urban disaster-prevention system, find out existing issue and propose suggestions for safety in urban environment via result of study.
