An optimal network for passenger traffic

Details An optimal network for passenger traffic An optimal network for passenger traffic

2008-09-23

arxiv.org/abs/0809.3877v2

Physica A 388, 3651 (2009)

Physics

Physics and Society

5 pages, 4 figures

Scientific paper

10.1016/j.physa.2009.05.017

The optimal solution of an inter-city passenger transport network has been studied using Zipf's law for the city populations and the Gravity law describing the fluxes of inter-city passenger traffic. Assuming a fixed value for the cost of transport per person per kilometer we observe that while the total traffic cost decreases, the total wiring cost increases with the density of links. As a result the total cost to maintain the traffic distribution is optimal at a certain link density which vanishes on increasing the network size. At a finite link density the network is scale-free. Using this model the air-route network of India has been generated and an one-to-one comparison of the nodal degree values with the real network has been made.

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