“…Since the Great East Japan Earthquake on March 11, 2011, many governmental and nongovernmental efforts in Japan have been sought in order to prevent any foreseeable consequences from disasters. Most of the implementation of prevention efforts for disasters has been based on structural and conventionalized regulations, such as Major Incident Medical Management and Support, [1][2][3] and thus, a scientific approach to disaster prevention has not gained much attention or interest from researchers or implementers. An interdisciplinary research team has developed a Ubiquitous Stereo Vision (USV) camera (National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan) 4 which can track and record human trajectories during an evacuation training session, such as the one at a large concert hall.…”