In recent years, cities in Japan have faced a strong demand for improving urban environment and securing disaster prevention functions in response to changes in the socio-economic situation such as rapid development of information technologies, globalization, declining birthrate and aging population. In this context, underground pedestrian networks has not only the purpose of alleviating chronic congestion aboveground, but is expected to play various roles such as improvement of convenience by directly connecting to offices and commercial facilities, and provision of temporary occupancy function in the event of a disaster. Furthermore, it is possible to promote sophistication of underground space and to enhance various functions as a city, and efforts for implementation have already started. This paper introduces examples of underground pedestrian network projects that are being implemented in line with urban renewal, as well as efforts on effective utilization of underground space with new technologies in major cities in Japan.

近年来，随着信息技术的飞速发展、全球化、少子老龄化等社会经济形势的变化，日本的城市面临着改善城市环境和确保防灾功能的强烈需求。在此背景下，地下人行网络不仅具有缓解地上长期拥堵的目的，还有望发挥多种作用，例如通过直接连接办公室和商业设施来提高便利性，以及在发生交通事故时提供临时占用功能。灾难。此外，可以促进地下空间的精致化，增强城市的各种功能，并且已经开始实施。