tag:blogger.com,1999:blog-7002254741688321811.post6589250449941943255..comments2023-10-18T04:53:10.733-07:00Comments on don't panic! correcting myths about the crowd: Shanghai crowd crush tragedychris cockinghttp://www.blogger.com/profile/15788298260856102346noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-7002254741688321811.post-73239375323003600502015-01-03T14:16:37.388-08:002015-01-03T14:16:37.388-08:00Thanks for your comment & the footage is indee...Thanks for your comment & the footage is indeed graphic and potentially distressing. At about 00.30 you can see what appears to be what I referred to in my post as a pressure wave, whereby energy travels through the crowd because people are packed so tightly together they cannot prevent themselves being carried along with the surge- which is very different from a 'stampede'. The chants from police and bystanders for people to get back that you refer to, also illustrates the general cooperation that occurs when people are able to do so. Unfortunately, when crowds are so tightly packed together that these pressure waves happen, people are usually unable to help each other because of the physical pressure. The crucial thing is that those responsible for crowd management in these situations have to ensure that they do not allow crowd density to reach such dangerous levels that pressure waves can occur. Helbing & Mukerji (2012) wrote about the 2010 Love Parade disaster in Duisberg, Germany, and suggested the concept of 'crowd quake' where crowd pressure reaches dangerous levels & their paper is available via; http://www.epjdatascience.com/content/1/1/7chris cockinghttps://www.blogger.com/profile/15788298260856102346noreply@blogger.comtag:blogger.com,1999:blog-7002254741688321811.post-91891604600415062122015-01-02T17:02:32.143-08:002015-01-02T17:02:32.143-08:00Thanks as always for your insight. As a Chinese sp...Thanks as always for your insight. As a Chinese speaker and former resident of China, I was looking forward to reading your thoughts. If you're interested, here (http://v.youku.com/v_show/id_XODYxODcxODUy.html) is a video of the incident as it happened with some photos. At 00:56 you can see/hear bystanders above the crowd shouting "Push back!" to get tell people at the back of the crowd not to push forward anymore. Warning: The videos is mildly graphic.Alechttps://www.blogger.com/profile/05424638261803382397noreply@blogger.com