A Study on the Causal Effects of Pedestrianization of the Frontage Roads of Midosuji on Surrounding Traffic Conditions

Abstract

In recent years, human-centric street planning & design have gained importance as part of sustainable urban design, and various initiatives have been implemented worldwide. Japan is no exception, with numerous examples of creating pedestrian zones. However, there is a persistent concern that converting roads into pedestrian spaces may negatively impact surrounding traffic conditions. A lack of research providing clear evidence to refute this concern may hinder the introduction of pedestrian spaces. This study quantitatively evaluates the causal effects of pedestrianizing Midosuji Boulevard on surrounding traffic conditions using the difference-in-differences (DID) method. The results reveal no clear evidence that pedestrianization has increased traffic volume in the surrounding areas.