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    Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/6924

    Título
    The gravity model as a tool for decision making. Some highlights for Indian roads
    Autor
    Martínez-Alvaro, Oscar
    García, Jose Manuel
    Kumar, Narender
    Publicado en
    R-Evolucionando el transporte
    Editorial
    Universidad de Burgos. Servicio de Publicaciones e Imagen Institucional
    Fecha de publicación
    2021-07
    ISBN
    978-84-18465-12-3
    DOI
    10.36443/10259/6924
    Descripción
    Trabajo presentado en: R-Evolucionando el transporte, XIV Congreso de Ingeniería del Transporte (CIT 2021), realizado en modalidad online los días 6, 7 y 8 de julio de 2021, organizado por la Universidad de Burgos
    Resumen
    For many decades, there have been plenty of analyses all over the world about the relationship between socio-economic attributes and transport flows. One of the most fruitful tools is the gravity model, in the beginning used for road transport, but recently widely used for air transport and international trade. India is an outstanding example of complexity, with a mixture of megapolises and vast rural areas. Its road network shows plenty of six and four lane expressways spanning hundreds of kilometers, complemented by a dense web of State and local secondary and tertiary links. In the last decades, National and State Governments have improved vast tracts of roads, but there is still a huge gap. Investment priorities are usually decided on the ground of existing congestion or strategic issues, but not much on demand analyses. For ascertaining whether in India socio-economic structure and transport flows follow a common pattern, complete corridor OD matrices were calibrated from partial screen matrices for a sample of long-distance corridors (NH-1, NH-6, NH-8, NH-58, NH-73). These matrices were later analyzed by means of gravity models that included parameters such as population or GDP per district (as zone attributes) and road distance among district centroids (as friction factors). Several formulae were tested, and the best fit was selected. Results for main corridors are rather homogeneous, and rather consistent with research carried out in other countries. Simple formulae have a high explanatory capacity, even if the huge mega-cities of Delhi and Mumbai are included in the analysis. But results for rural corridors are much less consistent, probably due to a less mature structure in terms of spatial distribution and transport relationships.
    Palabras clave
    Modelización
    Modelling
    Simulación
    Simulation
    Materia
    Ingeniería civil
    Civil engineering
    Transportes
    Transportation
    Vías terrestres
    Roads
    URI
    http://hdl.handle.net/10259/6924
    Versión del editor
    https://doi.org/10.36443/9788418465123
    Relacionado con
    http://hdl.handle.net/10259/6490
    Aparece en las colecciones
    • Congreso de Ingeniería del Transporte CIT 2021 (14º. 2021. Burgos)
    Ficheros en este ítem
    Nombre:
    Martínez_CIT2021_1303-1314.pdf
    Tamaño:
    268.2Kb
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