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City area traffic emergency plan method for severe haze weather

An urban area and plan technology, applied in the field of traffic environment engineering, can solve the problems of not conforming to the actual traffic flow conditions, not considering the dynamic limit of motor vehicles, and not correcting the parameters of micro traffic simulation software.

Inactive Publication Date: 2014-10-22
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, when realizing the control, the dynamic restriction of motor vehicles is not considered; when considering the environmental pollution index, the pollutant concentration is not included in the index of traffic management control; Its application does not conform to the actual local traffic flow conditions

Method used

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  • City area traffic emergency plan method for severe haze weather
  • City area traffic emergency plan method for severe haze weather
  • City area traffic emergency plan method for severe haze weather

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Embodiment Construction

[0102] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples.

[0103] The method of the present invention is applied to the following pre-plan systems, such as figure 1 As shown, the plan system includes a database module, a meso-simulator module, an offline optimization platform module, and an optimal plan module; the database module transmits the collected data to the meso-simulator module, an offline optimization platform module, and an optimal plan module; The observation simulator module simulates the total travel time of motor vehicles and the pollutant concentration in the field area through the traffic flow model, motor vehicle pollutant emission model and pollutant diffusion model, and transmits the above two data to the offline optimization platform module The offline optimization platform module establishes the set of emergency plans according to the concentration of pollutants in the field area, ...

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Abstract

The invention discloses a city area traffic emergency plan method for a severe haze weather. Targeting at a haze weather which occurs recently, the invention establishes an emergency plan system which is formed by a database module, a mesoscopic simulator module, an offline optimization platform module and a preferred plan module. The system simulates a pollutant exhausting condition and a pollutant concentration diffusion condition of city area motor vehicles and on the basis of the conditions, the plan system obtains a reasonable and effective emergency plan method through computation and optimization, that is, a novel scheme for limiting a proportion of motor vehicles which enter city areas and timing of signal lamps in the areas. Under a severe weather, the method guarantees that the weather of city areas does not further deteriorate because of pollutant exhaust of motor vehicles and also prevents threats on human health by pollutants.

Description

technical field [0001] The invention belongs to the technical field of traffic environment engineering, and in particular relates to a traffic emergency plan method for urban areas in severe haze weather. Background technique [0002] With the continuous development of my country's national economy and automobile industry, motor vehicle emissions account for 22% to 34% of the PM2.5 pollution in Beijing, Shanghai and other big cities. To solve the above-mentioned traffic environment problems, it is first necessary to investigate the traffic flow data of local motor vehicles and traffic energy consumption, and then quantitatively (or qualitatively) estimate the pollutant emission factors in the area and the corresponding road area distribution, and then based on this By implementing various traffic management and control measures, such as signal light control, limiting the number of motor vehicles, changing the number of left-hand lanes, changing speed limits, etc., analyzing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/00G08G1/048G06F17/50
Inventor 王绍楠王慧
Owner ZHEJIANG UNIV
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