Figure 2
From: Estimating contact rates at a mass gathering by using video analysis: a proof-of-concept project
Snapshot of simulation of 2013 GameFest event (Studio 1), Rensselaer Polytechnic Institute, Troy, NY, April 2013, using IMPACT computer application. Yellow tracks reflect random mixing of a sample of participants at one-second intervals during a three-minute video clip. Participants were introduced using a uniform X:Y distribution from their starting point, with proximity between participants determined by each participant’s random direction (0 to 360 degrees) and step size based on a Gaussian distribution. Physical barriers in Studio 1 restricted participants’ movements and contact with other participants.