Possibility of Deploying Traffic Calming Measures to Arterial Streets in City Centers: Implementation of Slow Street Concept

2023 Fiscal Year Final Research Report

• Project/Area Number: 22K14383
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 23030:Architectural planning and city planning-related
• Research Institution: The University of Tokyo
• Principal Investigator: MIURA SHINO 東京大学, 大学院新領域創成科学研究科, 客員連携研究員 (00772922)
• Project Period (FY): 2022-04-01 – 2024-03-31
• Keywords: 街路空間 / アクティブトランスポーテーション / インクルージョン / 健康増進 / 低炭素化

Outline of Final Research Achievements

The researches conducted expert interviews, literature surveys, and field surveys on advanced policies in European cities that have introduced a 30km/h speed limit in urban areas, and clarified the components of the "Slow Street" concept and the associated design requirements for streets. They also clarified the characteristics of pedestrian behavior on major streets in Japanese cities (streets with no congestion problems at speeds below 30km/h /streets where space is reallocated to public transport and pedestrians). Based on these findings, we verified the hypothesis that implementing the concept on wide streets "improves the options and quality of citizens' movements and activities, and has the effect of increasing the inclusiveness of cities," and suggested that in Japan, it would be effective to implement policies that also include space reallocation.

Free Research Field

都市デザイン

Academic Significance and Societal Importance of the Research Achievements

本研究により、国際的標準化されつつあるにもかかわらず、我が国では導入が十分に進んでいない、都心全体の徒歩・自転車・公共交通主眼の交通規制および交通再配分施策の導入の具体的プロセスが明らかにされた。政策の窓理論を用いて、制度や政治の条件に合わせた、スローストリート導入の条件を示しており、政策に応用できる点で社会的意義の高いものである。