Multi-pattern of Complex Social Pedestrian Groups

Many researches have been done for pedestrian groups with 2 to 4 members. However, the features of Complex Social Groups (CSGs) with 5 members or more are still almost unknown. In this paper, multi-pattern of CSGs in spatial pattern, intra-group structure and private space of is discovered. It is found that groups with 2 or 3 members exist commonly in CSGs with good stability and make the basic units (cellular groups) of CSGs. On the basis of the concept of private space, how cellular groups compose CSGs and form the multi-pattern of CSGs are discussed.