Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Analysis of risk levels for traffic on a multi-lane highway   We present an analysis of risk levels on multi-lane roads. The aim is to use
the crash metrics to understand which direction of the flow mainly influences
the safety in traffic flow. In fact, on multi-lane highways interactions among
vehicles occur also with lane changing and we show that they strongly affect
the level of potential conflicts. In particular, in this study we consider the
Time-To-Collision as risk metric and we use the experimental data collected on
the A3 German highway.

6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
36
The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin