Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Redundancy Analysis of the Railway Network of Hungary   Available alternative routes on which traffic can be rerouted in the case of
disruptions are vital for transportation networks. Line sections with less
traffic under normal operational conditions but with increased importance in
the case of disruptions are identified in the railway network of Hungary by
using a weighted directed graph. To describe the goodness of the individual
alternative routes the so-called redundancy index is used. The results show
that the structure of the network is good, but the lines with the highest
redundancy (lines No. 80, 2, 4 and 77 according to the numbering of the
national railway operator, M\'AV) are mostly single tracked and in many cases
the line speed is low. The building of additional tracks and electrifying these
lines while still maintaining the existing diesel locomotives for the case of
disruptions of the electric support are the keys to make the performance of the
rather dense railway network of Hungary sustainable.

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The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
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The categories of this paper are: eess
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The categories of this paper are: q-fin