Mixing Structure of Land Use within the CBD and its Surrounding Areas in Nagoya City.

我们首先将名古屋主要区域的1/ 25000土地利用地图的250mx250m网格模式进行叠加。其次，计算每个单元格的大致土地利用比例，并采用改进的韦弗方法为每个单元格分配合适的土地利用组合；这些过程为我们提供了名古屋CBD及其周边地区的边界。第三，我们调查了这些区域内每个安装的使用和高度。调查分析的结果可以总结为：1)通过区域功能专业化解释CBD及其周边区域土地利用分布的空间结构。我们发现了5种特殊功能的中心。这些中心是“文娱中心”、“商务中心”、“商业中心”、“娱乐中心”和“交通中心”。②城市中心区的空间扩展和功能关系可能是影响城市周边土地利用格局的主要因素。我们利用名古屋市规划委员会出版的现有建筑物使用地图，分析了名古屋市中心土地利用分布的混合结构。我们发现名古屋市土地利用分布的随机性非常高。很少有土地利用组合表现出显著的混合或分离关系。分析了加拿大多伦多市土地利用分布的混合结构。对比这两种混合结构，我们可以清楚地看到，特隆托市的土地利用比名古屋市更加分化。两个城市之间的差异可以归结为土地利用密度和分区政策。

We first overlaid the 250mx250m grid pattern of the 1/25,000 land use maps of the main parts of Nagoya city. We secondly calculated the approximate land use proportion of each cell, then assigned each cell to appropriate land use combination by modified weaver's method. These process gace us the boundary of the CBD and its aurrounding area in Nagoha city. We thirdly investigated the use and hight of each erection within these areas. We can summarize the results of these investigation and analysis as follows:1) We can explain the spatial structure of the distribution of land use within the CBD and its surrounding areas by reterring the specialization of areal function. We found 5 kinds of specially functioned centers. These centers are 'Civic center', 'Business center', 'Comercial center', 'Entertainment center' and 'Transit center'.2) The spatial expansion and the functional relationships among these centers might be primary forces to change the land use within these surrounding areas.We analized the mixing structure of the distribution of land use within central area of Nagoya city by using maps of existing use of erections, published by Planning Board of Nagoya city. We found that the randomness of the distribution of land use in Nagoya city is very high. There are few combinations of land use which showed significant mixing or separating relationships.We also analized the mixing structure of the distribution of land use in Toronto city, Canada. Comparing these two mixing structures, we can make clear the fact that the land use in Tronto city is more differentiated than taht in Nagoya city. These difference between two cities can reduce to the density of land use and thye zoning policy.