Simulating group formation and behaviour in dense crowd

This paper presents a technique to simulate large groups in a dense crowd, where the groups can change their formation, and continuously avoid collision with other individual agents and groups, but still try to keep their collective behaviour until they reach their destination. To achieve this, we use the leader-follower model where the leader determines the group path while other members, driven by the modified social force model (SFM), follow the leader, maintaining the group formation. We also use density of agents in the travelling direction as the criteria to determine the appropriate formation type. Our proposed technique is easily compatible with individual agents driven by the existing SFM at moderate costs.