Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Towards understanding network topology and robustness of logistics
  systems   Advanced integration of logistics systems has been promoted for the sake of
competitiveness and sustainability. Such efforts will enable more globally
optimal and flexible operations by efficiently utilizing transportation
capacity. At the same time, interconnection of transport operations increases
complexity at a network level, which reduces the predictability of the response
of the system to disruptions. However, our understanding of the behavior of
such systems is still limited. In particular, the topology of the network,
which changes as the systems are integrated, is an important factor that
affects the performance of the entire system. Knowledge of such mechanisms
would be useful in the design and evaluation of integrated logistics. Here, we
developed a simple mathematical model that extracts the essence of the problem
and performed extensive numerical experiments by Monte Carlo simulations for
three scenarios that mimic changes in demand: (i) locally and temporally
increased traffic demand, (ii) globally and temporally increased traffic
demand, and (iii) permanent change in demand pattern, under various conditions
on the type of route-finding algorithm, network structure, and transportation
capacity. Adaptive route-finding algorithms were more effective in square
lattice and random networks, which contained many bypass routes, than in
hub-and-spoke networks. Furthermore, the square lattice and random networks
were robust to the change in the demand pattern and temporal blockage of
delivery paths (e.g., due to high demand). We suggest that such preferable
properties are only present in networks with redundancy and that the bypass
structure is an important criterion for designing network logistics.

33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org