Abstract
Traffic in Mexico City poses a serious problem of vehicle saturation that causes a decrease in speed and increased transport time in the streets that suffer mobility collapses. A macroscopic model of vehicular traffic is used to show the effect of viscosity on the vehicular variables (speed and vehicle density), applied to two avenues in Mexico City, is studied. The input parameters were calculated following the Greenberg model. As the original model presents numerical divergences, the two assumptions corresponding to conservation of the vehicle’s mass and the viscous term are modified. The results suggest that the viscosity depends on time and that it can be adapted to recommend modifications in urban mobility parameters, or even to implement the public planning policies in construction of infrastructure for urban transport, to make vehicle flow more efficient.
Highlights
Transport is a part of the urbanization process produced within a host of intentions, such as real estate, residential developments, productive location and points of commerce in its various formats
The results suggest that the viscosity depends on time and that it can be adapted to recommend modifications in urban mobility parameters, or even to implement the public planning policies in construction of infrastructure for urban transport, to make vehicle flow more efficient
According to the differential intensities of local, intrametropolitan, and even regional scales, the transport saturation derived from vehicular flows and vehicular densities generates frequent problems of mobility
Summary
Transport is a part of the urbanization process produced within a host of intentions, such as real estate, residential developments, productive location and points of commerce in its various formats. The transport role is very significant for organization of urban spatiality since transport systems in large metropolises are essential for labor and student mobility, circulation of goods, delivery of services, and many other reasons in the productive and social spheres. The traffic volume responds to a group of elements, such as increases in population density, structure of the hierarchical road map, routes of means of transport and their connectivity, mass of circulating vehicles and the transport hubs that are configured in the metropolis by the origin-destination concentrations. Vehicular traffic is studied over the world because of increase of the mobility generalized problems. Most of the studies are centered in the vehicular flow, in which they relate the vehicular speed and the density of the traffic
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