Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A sharp critical threshold for a traffic flow model with look-ahead
  dynamics   We study a nonlocal traffic flow model with an Arrhenius type look-ahead
interaction. We show a sharp critical threshold condition on the initial data
which distinguishes the global smooth solutions and finite time wave
break-down.

25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
28
The categories of this paper are: alg-geom