domingo, 29 de marzo de 2009
lunes, 2 de marzo de 2009
El excitante mundo de la física de la materia condensada (?)
What are the best routes for us to use for driving home tonight in rush hour traffic?
1Department of Physics, University of Houston, Houston TX 77204-5005
2Texas Center for Superconductivity, University of Houston, Houston TX 77204-5002
We show that the capacity of a complex network that models a city street grid to support congested traffic can be optimized by using routes that collectively minimize the maximum ratio of betweenness to capacity in any link. Networks with a heterogeneous distribution of link capacities and with a heterogeneous transport load are considered. We find that overall traffic congestion and average travel times can be significantly reduced by a judicious use of slower, smaller capacity links.
http://arxiv.org/PS_cache/arxiv/pdf/0902/0902.2415v1.pdf
1Department of Physics, University of Houston, Houston TX 77204-5005
2Texas Center for Superconductivity, University of Houston, Houston TX 77204-5002
We show that the capacity of a complex network that models a city street grid to support congested traffic can be optimized by using routes that collectively minimize the maximum ratio of betweenness to capacity in any link. Networks with a heterogeneous distribution of link capacities and with a heterogeneous transport load are considered. We find that overall traffic congestion and average travel times can be significantly reduced by a judicious use of slower, smaller capacity links.
http://arxiv.org/PS_cache/arxiv/pdf/0902/0902.2415v1.pdf
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