Hazard and Evacuee Interaction

How evacuees interact with hazard in evacuation is an important issue to study. Here we present a new perspective to model this process.

As hazard propagates towards people, people normally desire moving faster to escape from danger or search for familiar ones to escape together. As a result, the desired velocity v0 increases in order to escape from danger while dij will decrease in order to make people cohesive to stay together.

The direction of v0 is commonly pointing to the place where the hazard level decreases, but it also depends on the high-level decision making process such as exit choice in egress.