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Stability modeling method of macroscopic traffic flow velocity gradient viscous model

A technology of macroscopic traffic flow and viscous model, which is applied in the field of stability modeling of macroscopic traffic flow velocity gradient viscous model, which can solve the problems that traffic system researchers are inconvenient to use directly and cannot directly give traffic congestion conditions.

Inactive Publication Date: 2011-12-21
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] However, the above model cannot directly give the traffic congestion conditions, especially when various traffic parameters change, it can directly give the overall description of the traffic congestion problem, which makes it difficult for traffic system researchers to directly use

Method used

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  • Stability modeling method of macroscopic traffic flow velocity gradient viscous model
  • Stability modeling method of macroscopic traffic flow velocity gradient viscous model
  • Stability modeling method of macroscopic traffic flow velocity gradient viscous model

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Embodiment Construction

[0020] 1. The newly established macroscopic traffic flow model is

[0021] σ 2 ∂ η ∂ t - ρ m η 2 ∂ σ ∂ x + σ ∂ η ∂ x + η ∂ σ ∂ x = 0

[0022] μη ρ m η - 1 [ 2 ( ∂ σ ...

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Abstract

The invention discloses a stability modeling method for a macroscopic traffic flow velocity gradient viscosity model, which is used to solve the technical problem that the existing model is difficult to directly deal with the traffic congestion problem. The technical solution is to obtain the relationship between the traffic congestion problem and the system stability by establishing a new traffic model on the basis of the existing model, so as to use the global stability perspective to determine whether traffic congestion or other abnormal phenomena will occur macroscopically. , provides the basic basis for traffic control and decision-making, and is directly applied to deal with the problem of traffic congestion.

Description

technical field [0001] The invention relates to a modeling method, in particular to a stability modeling method of a macroscopic traffic flow velocity gradient viscous model. Background technique [0002] In recent years, with the great increase in the number of various means of transportation, facilities, roads, and traffic management systems in many countries in the world have been difficult to adapt to this speed of development, especially in large and medium-sized cities with insufficient traffic infrastructure and traffic signal control. Inconsistency, lack of traffic guidance system, confusion of vehicle scheduling and management, awareness of traffic regulations of traffic participants and many other reasons lead to urban traffic congestion, which in turn leads to a series of social and economic problems such as traffic safety and environmental pollution. question. [0003] Because the traffic problem is a complex large-scale system problem, it involves the comprehen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/00
Inventor 史忠科
Owner NORTHWESTERN POLYTECHNICAL UNIV