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Video Experimental Relacionado

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Vegetated Treatment Systems for Removing Contaminants Associated with Surface Water Toxicity in Agriculture and Urban Runoff
08:49

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Published on: May 15, 2017

Un enfoque de dos fluidos para el tráfico urbano.

R Herman, I Prigogine

    Science (New York, N.Y.)
    |April 13, 1979
    PubMed
    Resumen

    Un nuevo modelo de tráfico de dos fluidos muestra que el tiempo de viaje está linealmente relacionado con el tiempo de parada. Este modelo ayuda a analizar el flujo de tráfico urbano y la calidad del sistema de red.

    Área de la Ciencia:

    • Dinámica del flujo de tráfico Dinámica del flujo de tráfico
    • Modelado de transporte urbano en las ciudades.
    • Aplicaciones de la teoría cinética aplicaciones de la teoría cinética.

    Sus antecedentes:

    • Los modelos de tráfico existentes a menudo simplifican dinámicas urbanas complejas.
    • La teoría cinética del tráfico multilaneal proporciona una base para modelos más matizados.

    Objetivo del estudio:

    • Desarrollar un modelo de tráfico de dos fluidos para entornos urbanos.
    • Para analizar la relación entre el movimiento del vehículo y las condiciones del tráfico.
    • Introducir un parámetro para la calidad de la red de tráfico.

    Principales métodos:

    • Extendiendo la teoría cinética anterior del tráfico multilane.
    • Definir dos fluidos: coches en movimiento y coches parados.

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  • Suponiendo que la velocidad media es proporcional a la fracción de vehículos en movimiento.

    • Principales resultados:

    • El tiempo de viaje por unidad de distancia está linealmente relacionado con el tiempo de parada por unidad de distancia.
    • Relaciones desarrolladas para el flujo de tráfico frente a la velocidad promedio.
    • Se introdujo un nuevo parámetro que representa la calidad del sistema de la red de tráfico.

    Conclusiones:

    • El modelo de dos fluidos ofrece un enfoque práctico para comprender el tráfico urbano.
    • La relación lineal entre los tiempos de viaje y parada se alinea con los datos urbanos del mundo real.
    • El nuevo parámetro cuantifica el rendimiento de la red de tráfico.