抄録
Widening the narrow street is one of the important subjects for improvement in the densely built-up area. However, the infrastructure provision is not making progress on the whole. So, the purpose of this study is to tidy up the policy of the infrastructure provision for densely built-up area improvement in the future, based on the case study of Shinagawa Ward, Nakano Ward, Shinzyuku Ward and Toshima Ward.
