On Plans of Ancient Greek and Roman Theater and Amphitheater through the Arangement of Passage and Audience seat

从通道和观众座位的布置角度分析古希腊罗马剧场和圆形剧场的平面布置，得到以下结果：各时期和各城市之间的通道格局没有变化，观众座位面积由阶梯通道和水平通道构成。2、阶梯式通道与水平通道形成的观众座位面积主要在40 ~ 140m²（剧场）或60 ~ 200m²（露天剧场）之间。观众座位的面积是对称排列的，但阶梯式通道和水平通道组成的所有部分的面积通常不一样。值得注意的是，大部分和小部分之间的差异并不大，通常在20m^2.4以下。观众座位下方的一条走廊面积约为140平方米（剧场）或170平方米（圆形剧场）。

Analisysing the plans of Ancient Greek and Roman theater and Amphitheater from the point of view of the arrengemnts of passages and audience seats, we got the following resualts :1. There is not change through the period nor between the various cities on the patern of passage, area of the audience seat formed by stepped passage and horizontal one.2. The area of the audience seat formed by stepped passage and horizontal one is mainly between 40 m^2 and 140m^2 (in the case of theater) or 60 m^2 and 200m^2 (in the case of amphitheater).3. The area of the audience seat is symmetrically arranged, but the area of all part formed by stepped passage and horizontal one usually is not same. It is worth noticing that the difference between the large part and small one is not so large, usually under 20m^2.4. One corridor under the audience seat covers the area of c. 140m^2 audience seat (in the case of theater) or c. 170 m^2 (in the case of amphitheater).