It is possible to say that the road network of Tokyo today was mostly produced by him, especially those roads in Shitamachi district, (or traditional working-class area in Tokyo), where any new streets were constructed newly since his urban revival project of the imperial capital, therefore, the legacy of the reconstruction project is still used today as the essential infrastructure that supports the capital.
現在の東京の幹線道路網の大きな部分は新平に負っていると言ってよく、特に下町地区では帝都復興事業以降に新たに街路の新設が行われておらず、帝都復興の遺産が現在でも首都を支えるインフラとしてそのまま利用されている。