避難時間的計算十分的複雜，對建築安全的評估亦十分重要，該時間的計算是須配合人員群流及避難時的行動特性，再根據建築本體實際使用情形，計算該處人員進入安全梯或特別安全梯等相對安全區域之情形(包括路徑與時間)。本文以日本建築中心避難計算方法，做為避難時間計算基準，假定可能起火點後，續而決定避難動線，計算其起火居室避難時間(T1)、走廊避難時間(T2)及樓層避難時間(Tf)等評估數據，最後並與實地現場觀察結果做一比較。

　　　　　Evacuation time is relatively complex, and it is an important index to the building safetyevaluation. There are two major components of evacuation tilpe which are (1) the time taken upby relatively complex crowd behavior and (2) the time needed to for the movement directed tothe egress or escape. Using the Japan Architecture Research Center method, the differentevacuation times(T1、T2、Tf) are determined. The conclusion includes with a discussion of theresults of this study and the observation practice.