Modification of the gravity model and application to the metropolitan Seoul subway system.
Phys Rev E Stat Nonlin Soft Matter Phys
; 86(2 Pt 2): 026102, 2012 Aug.
Article
em En
| MEDLINE
| ID: mdl-23005820
ABSTRACT
The Metropolitan Seoul Subway system is examined through the use of the gravity model. Exponents describing the power-law dependence on the time distance between stations are obtained, which reveals a universality for subway lines of the same topology. In the short (time) distance regime the number of passengers between stations does not grow with the decrease in the distance, thus deviating from the power-law behavior. It is found that such reduction in passengers is well described by the Hill function. Further, temporal fluctuations in the passenger flow data, fitted to the gravity model modified by the Hill function, are analyzed to reveal the Yule-type nature inherent in the structure of Seoul.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ferrovias
/
Gravitação
Tipo de estudo:
Prognostic_studies
/
Risk_factors_studies
Limite:
Humans
País/Região como assunto:
Asia
Idioma:
En
Revista:
Phys Rev E Stat Nonlin Soft Matter Phys
Ano de publicação:
2012
Tipo de documento:
Article