Abstract
This study deals with the fire spreading of general urban districts composed by cell coordinate system. Although there were some works about special plants or structures with large risks until now, it might be investigated about the viewpoint for safety or risk assessment of general urban districts. In this study, we attempt to use Bernoulli sequence as quantity for counting of fire scale and to use the center fire points on cell global coordinate system. In addition, we examine the characteristics of its expansion with fire spreading probability throughout numerical calculation for around cells of disaster points after first fire source by using same conditions.
