Chikagai

Chikagai, also known as "underground shopping streets," are a common feature in many Japanese cities. These extensive subterranean networks often connect major train stations, department stores, office buildings, and other commercial establishments. They are designed to provide a comfortable and convenient shopping and transit experience for pedestrians, particularly during periods of extreme weather such as hot summers or cold winters, as well as during heavy rainfall.

The origins of Chikagai can be traced back to the post-war period in Japan, with early examples emerging in the 1950s and 1960s. Initially, they were relatively simple passages, but over time they evolved into sophisticated retail environments. Many Chikagai feature a wide array of shops selling clothing, food, cosmetics, and various other goods. They also often house restaurants, cafes, and service providers, creating bustling commercial hubs beneath the surface.

Prominent examples of Chikagai can be found in major cities like Osaka (e.g., the Whity Umeda complex), Tokyo (e.g., under Shinjuku Station), and Nagoya (e.g., the Central Park underground mall). These underground districts are not merely functional spaces but also contribute to the urban landscape and the daily lives of city dwellers, offering an alternative to above-ground pedestrian traffic. They are an integral part of urban planning in Japan, prioritizing pedestrian flow and commercial activity.