The temporal comparative study about the influence that Seto Long Bridge had done on the local city

我们研究了濑户长桥开通后近20年间堺市市区和岛屿的变化和问题。这些研究包括4个内容。首先是濑户长桥开通后堺市市区的变化研究。二是成为濑户龙桥主梁的四和岛3岛的人口变化。三是堺市城区居住与社区生活、居住环境、老龄化与社区改善。四是西威克岛居民生活与社区生活、居住环境、老龄化与社区改善。

We researched the change and the problem of Sakaide urban area and islands during approximately 20 years after the Seto Long Bridge opening. These researches contain 4 contents. The first is the study on changes of the Sakaide urban area after the Seto Long Bridge opening. The second is the population change of 3 Island in the Siwaku islands which became the bridge girder of the Seto-Long Bridge. The third is the life of residence and community, the living environment, the aging and community improvement in the Sakaide urban area. The fourth is the life of residence and community, the living environment, the aging and community improvement in the Siwake 3 islands.