Modification of the gravity model and application to the metropolitan Seoul subway system

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...

Full description

Saved in:
Bibliographic Details
Published in:Physical review. E, Statistical, nonlinear, and soft matter physics Statistical, nonlinear, and soft matter physics, 2012-08, Vol.86 (2 Pt 2), p.026102-026102, Article 026102
Main Authors: Goh, Segun, Lee, Keumsook, Park, Jong Soo, Choi, M Y
Format: Article
Language:English
Subjects:
Algorithms
Cities
Gravitation
Humans
Korea
Models, Statistical
Movement
Physics - methods
Railroads
Social Support
Software
Time Factors
Transportation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:1539-3755
1550-2376
DOI:10.1103/physreve.86.026102