Abstract
With the aid of high-performance computing, we can perform an earthquake disaster assessment based on the seismic response analysis of all individual buildings in a target city, once the building models are constructed from some input data. However, the quantity and quality of single data sources for individual buildings are limited. Thus we need to make the detailed information combining multiple data sources. In order to prepare such information,we have developed a method to automatically combine the 3D shapes and the attributes which are separately recorded in two different types of GIS data. We have applied the method to the real city data, and the results show high reliability of over 80% despite the discrepancy between the locations of the 3D shapes and the attributes.