The 100th Anniversary of Tokyo’s Urban Park System and the Reorganization of Green Space Policy—July 1973

The 100th Anniversary of Tokyo’s Urban Park System and the Reorganization of Green Space Policy—July 1973 The 100th anniversary of the Urban Park System marks a turning point in Japan’s urban green space policy. Institutionalized in the early Meiji period, urban parks were initially developed as part of the introduction of Western-style urban planning, but their role underwent a significant transformation in the 1970s. Historical records note that a “National Convention Commemorating the 100th Anniversary of the Establishment of the Urban Park System” was held, suggesting that this milestone was not merely a celebration but a catalyst for reevaluating future urban policy. During this period, cities faced the serious problem of a shortage of green spaces due to rapid population concentration and rapid economic growth. As natural spaces were lost to the expansion of housing, roads, and factories, a situation often referred to as an “urban desert” became apparent in various regions. Consequently, parks were redefined not merely as recreational facilities, but as “basic infrastructure” essential for maintaining the urban living environment. Particular emphasis was placed on the multifunctionality of parks. Urban parks were viewed not only as recreational spaces for residents but also as disaster prevention hubs (serving as evacuation sites and firebreak zones), as well as providers of environmental functions such as air purification and temperature regulation. These functions were also expected to serve as countermeasures against pollution and the urban heat island effect, which were major concerns at the time. Furthermore, taking the 100th anniversary as an opportunity, the national government and local municipalities began setting numerical targets for park development. Documents from this period reveal the establishment of goals such as “increasing the area of urban parks per capita,” indicating a recognition of the need for long-term development plans. This signified a shift in thinking away from isolated development projects toward a nationwide, systematic approach to increasing green spaces. Even in general historical records, this era is described as a time when initiatives such as the “Five-Year Plan for Urban Park Development” were implemented, marking a period in which park development expanded into a national undertaking. The concept of using park area per capita as an indicator also gained traction during this period, becoming an important benchmark for measuring the quality of a city. Thus, the 100th anniversary of the urban park system was not merely a historical milestone; it served as a catalyst for elevating parks from mere urban adornments to social infrastructure, and can be described as a pivotal event that determined the direction of Japan’s urban environmental policy.