随着经济社会发展和网络信息科技的广泛应用,由群众自发或企事业单位发起,并通过互联网传播的各种觐香、祈福、新年庆祝、单位年会、商(市)场促销等无需许可社会活动的数量大幅增长,这些活动群众参与热情高、数量多、规模大、地点分散,极易形成局部人流聚集,存在较大安全风险。特别是2014年12月31日在上海外滩发生的严重拥挤踩踏事故,造成 With the wide application of economic and social development and network information technology, all kinds of pilgrimages, blessings, New Year celebrations, annual conventions, business (city) market promotion initiated by the masses spontaneously or by enterprises and institutions and propagated through the Internet are not required The number of social activities has increased substantially. The mass participation of these activities is highly enthusiastic, large in number, large in scale and dispersed in location. It is very easy for local people to gather and there is a big security risk. Especially on July 31, 2014 in Shanghai on the Bund caused by a serious stampede