Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamics of pedestrians in regions with no visibility - a lattice model
  without exclusion   We investigate the motion of pedestrians through obscure corridors where the
lack of visibility (due to smoke, fog, darkness, etc.) hides the precise
position of the exits. We focus our attention on a set of basic mechanisms,
which we assume to be governing the dynamics at the individual level. Using a
lattice model, we explore the effects of non-exclusion on the overall exit flux
(evacuation rate). More precisely, we study the effect of the buddying
threshold (of no-exclusion per site) on the dynamics of the crowd and
investigate to which extent our model confirms the following pattern revealed
by investigations on real emergencies: If the evacuees tend to cooperate and
act altruistically, then their collective action tends to favor the occurrence
of disasters.

7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
28
The categories of this paper are: alg-geom
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn