An Estimation of the Number of the General Spectators at the Tokyo Olympic Games T. ISE（The Organizing Committee for The Games of The XVIII Olympiad），M. KURODA（The Organizing Committee for The Games of The XVIII Olympiad），J. TANAKA（Faculty of Engineering, Hosei University），Y. NONAKA（The Composite Research and Development Center of Toyo Seikan & Toyo Kohan Companies）
