Abstract
A high-density area formed after World War II is one of the problems facing urban planning and urban management. The density of buildings should be analyzed on a regional scale in detail. We have formed the concept of analyzing the building density based on blocks on a regional scale. In this study, three kinds of the feature of building height data were newly proposed. They were applied to the building density analysis in conjunction with conventional features of blocks. It was suggested that the application of new features provided the extraction of the areas equivalent to project-expediting areas for urban renewal.
