Social force-based road segment construction area heterogeneous traffic flow model establishing method

A technology of traffic flow model and establishment method, which is applied in the field of establishment of heterogeneous traffic flow model in road section construction area based on social forces, and can solve problems such as irregular driving boundaries and inapplicability

Inactive Publication Date: 2018-11-13
SOUTHWEST JIAOTONG UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

In addition, road sections with construction areas have characteristics such as no lane divisions and irregular driving boundaries. Some traditional traffic flow models are not suitable for such complex traffic scenarios.

Method used

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  • Social force-based road segment construction area heterogeneous traffic flow model establishing method
  • Social force-based road segment construction area heterogeneous traffic flow model establishing method
  • Social force-based road segment construction area heterogeneous traffic flow model establishing method

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Embodiment Construction

[0023] A method for establishing a heterogeneous traffic flow model in a road section construction area based on social forces, including the following contents:

[0024] (1) Model establishment

[0025] In the new construction zone traffic flow model of the road section, the force driving the leading vehicle is the driving force, and the force driving the middle vehicle is the maximum value of the following three forces, the left attraction force and the right attraction force, and all vehicles satisfy Under the relevant conditions, it will be subjected to the force from the side vehicle and the boundary. The traffic flow model in the construction area of ​​the road section is as follows: figure 1 Each force will be described in detail below.

[0026] 1. Forward self-driving force

[0027] According to the principle of maximizing the target benefit, individuals have the psychology of reaching the destination in the shortest time, but because there are a series of uncontrol...

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Abstract

The invention discloses a social force-based road segment construction area heterogeneous traffic flow model establishing method. The method comprises the following steps of: 1, establishing a road segment construction area traffic flow model; 2, acquiring data of a road segment construction area; 3, building a simulation platform to simulate a real construction area traffic flow; 4, calibrating aroad segment construction area traffic flow model parameter by utilizing the data acquired in the step 2; and 5, verifying the road segment construction area traffic flow model by utilizing the dataacquired in the step 2 and the simulation result. According to the method, a social force model has certain advantages in road segment constriction area traffic flow model establishing and is capableof better reflecting the heterogeneity of traffic flows; and the social force-based model is more suitable for traffic flows without lane division. According to the method, an existing social force model is improved firstly, a new model is calibrated, and the calibrated model is utilized to simulate and analyze traffic flows.

Description

technical field [0001] The invention relates to a method for establishing a heterogeneous traffic flow model in a road section construction area based on social forces. Background technique [0002] In recent years, the country has vigorously built new transportation facilities, and constructions on expressways and urban trunk lines are frequent. Especially on urban roads, there are extensive construction areas on road sections. The setting of construction areas reduces the traffic efficiency of vehicles on road sections, causes a large number of queues, increases vehicle energy consumption and exhaust emissions, and causes serious pollution to the atmosphere. Due to the obvious heterogeneity of vehicles on urban roads and the change of road characteristics after setting up construction zones, it is difficult to model traffic flow and study emissions. [0003] Although a lot of research has been done on construction zones, most studies focus on expressways, and relatively f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 杨达周小霞熊明强
Owner SOUTHWEST JIAOTONG UNIV
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