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Method for evaluating the impact of road traffic characteristics on the concentration of respirable particulate matter emissions

A technology of emission concentration and road traffic, which is applied in the field of evaluating the impact of road traffic characteristics on the emission concentration of inhalable particulate matter, can solve the problems of difficulty in obtaining instantaneous data and time-consuming, and achieve the effect of simple and convenient data acquisition and reduction of PM10 emissions.

Active Publication Date: 2020-11-03
SOUTHEAST UNIV
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Problems solved by technology

However, the disadvantage of these methods is that it is necessary to obtain the instantaneous speed and acceleration of the vehicle. The acquisition of these instantaneous data is difficult and takes a lot of time. Therefore, these studies cannot be directly applied to evaluate a relatively macroscopic area (traffic analysis district, city etc.) PM 10 Emissions

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  • Method for evaluating the impact of road traffic characteristics on the concentration of respirable particulate matter emissions
  • Method for evaluating the impact of road traffic characteristics on the concentration of respirable particulate matter emissions
  • Method for evaluating the impact of road traffic characteristics on the concentration of respirable particulate matter emissions

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0025] Such as figure 1 As shown, a kind of evaluation road traffic characteristic that the embodiment of the present invention discloses is to inhalable particulate matter (PM 10 ) method for the influence of emission concentration, comprising the following steps:

[0026] Step 1) Obtain the traffic analysis zone (TAZ) information in the research area: select the most commonly used traffic analysis unit—traffic analysis zone (TAZ) as the research object, obtain the vector map file (shapefile) corresponding to the traffic analysis zone, use ArcGIS software can obtain the basic attributes of each traffic analysis area, such as visualizing the specific location of each traffic analysis area in the entire research area, calculating the area of ​​the traffic analysis area, etc.;

[0027] Step 2) Obtain variables such as population economy, emplo...

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Abstract

The invention discloses a method for evaluating an influence of road traffic features on inhalable particle discharge concentration. The method comprises the steps of obtaining traffic analysis zone information of a research region; obtaining variable data of population economy, employment, traffic conditions and road network features; obtaining PM10 annual average concentration; obtaining PM10 concentration data of traffic analysis zones by utilizing a spatial interpolation method; obtaining other main PM10 discharge source data of the research region; matching variables and the concentrationwith the traffic analysis zones; performing correlation analysis to screen the variables; by taking the PM10 concentration as a dependent variable, building a linear regression model; and according to the final model, evaluating and interpreting the influence of the variables on the PM10 concentration. According to the method, the traffic analysis zones are selected as research objects; by utilizing the linear regression model, the influence of the population economy, the employment, the traffic conditions and the road network features of the traffic zones on the PM10 discharge concentrationis analyzed; and a certain theoretical basis can be provided for PM10 concentration reduction and traffic sustainable development planning.

Description

technical field [0001] The invention relates to a method for evaluating the impact of road traffic characteristics on inhalable particulate matter (PM 10 ) The method for the impact of emission concentration belongs to the technical field of urban transportation sustainable development planning. Background technique [0002] With the rapid development of economy and urbanization, the number and utilization rate of vehicles are increasing rapidly. According to the 2015 annual report on the prevention and control of motor vehicle pollution issued by the Ministry of Environmental Protection of China, automobiles are the main contributor to the total amount of pollutants. More than 90% of particulate matter is emitted, and nitrogen oxides (NOx), the main emissions from motor vehicles, are also an indirect component of particulate matter formation. Among them, inhalable particulate matter (PM 10 ) has obvious toxic effects on human health, and its large discharge will undoubted...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/18G06Q10/04G06Q50/26
CPCG06F17/18G06Q10/04G06Q50/26
Inventor 徐铖铖赵晶娅刘攀
Owner SOUTHEAST UNIV
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