In this paper, we present a new model to simulate following behavior. This model is based
on a dynamic following distance that changes according to the follower's speed and to the
leader's motion. The following distance is associated with a prediction of the leader's future
position to give a following ideal position. We show the resulting following trajectory and
detail the importance of the distance variation in different situations. The model is evaluated
using real data. We demonstrate the capacity of our model to reproduce macroscopic …

Following is a very common type of interaction between individuals observed in crowds. For
example, in streets or in corridors, following occurs as soon as one's motion is constrained in
the sagittal plane, while overtaking possibilities are constrained as well by walls or people
coming in counter flow. In this paper, we present a new model to simulate following
behaviors. We explore the distance at which followers try to match the leaders' speed. In our
model, the following distance is dynamic and changes according to the follower's speed and …