Abstract
The Tokyo 2020 Games were held without spectators in a state of emergency during the COVID-19 pandemic. Although
international tourists and even Japanese domestic visitors could not watch the games on-site during an exceptional iteration of
the Olympic and Paralympic Games, the Tokyo 2020 Games may have led to unusual human flow. This study clarified the tourist
flow of movement due to the Tokyo 2020 Games through time-series analysis of human flow data and analysis of several Tokyo
2020 spots’ combined visit ratio. The analytical results showed no impact on human flow to Tokyo tourist spots such as Shibuya,
Shinjuku and Asakusa, mainly during the period of the Tokyo 2020 Games. However, an impact on human flow in the vicinity of
Tokyo 2020 sites such as stadiums and public spaces was found due to the hosting of the Tokyo 2020 Games. The impact was
the most pronounced at the periphery of New National Stadium and the Olympic and Paralympic Cauldron Monument, and a
characteristic impact was observed on the flow between these sites and another site in the Odaiba area.
