An emission calculation method and a device of a road traffic source

An emission and traffic source technology, applied in the field of emission calculation of road traffic sources, which can solve problems such as low calculation accuracy

Active Publication Date: 2018-12-25
BEIJING MUNICIPAL INST OF LABOUR PROTECTION
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Problems solved by technology

[0009] In order to overcome the problem of low calculation accuracy of the existing road traffic source emission calculation method or at least partially solve the above problem, the present invention provides a road traffic source emission calculation method and device

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  • An emission calculation method and a device of a road traffic source
  • An emission calculation method and a device of a road traffic source
  • An emission calculation method and a device of a road traffic source

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Embodiment Construction

[0025] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] In one embodiment of the present invention, a method for calculating emissions from road traffic sources is provided, figure 1 It is a schematic diagram of the overall flow of the method for calculating the emission of road traffic sources provided by the embodiment of the present invention, the method includes: S101, according to the pre-acquired real-time road condition data and road network data of the target area, obtain the road section in the target area at each time average traffic volume;

[0027] Among them, the estimation of road traffic flow by road mainly selects the average speed-average density relationship model in the basic traffic flow diagram, whi...

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Abstract

The invention provides an emission calculation method and a device of a road traffic source. The method comprises the following steps: acquiring the average vehicle flow of each road section in the target area at each time according to the real-time road condition data and the road network data of the target area obtained in advance; obtaining a comprehensive emission factor of each pollutant in each road section at each time point according to a proportion of motor vehicles of each vehicle type in each road section obtained in advance, a reference emission factor of each vehicle type emittingeach pollutant, and a correction factor of each reference emission factor at each time point; according to the comprehensive factors, the road length of each road section and the average traffic flowof each road section at each time, the emissions of various pollutants in each road section at each time being obtained. On the one hand, the invention realizes the real-time calculation of the emission amount of the road traffic source; on the other hand, considering a plurality of factors affecting the emission factor of the motor vehicle, the obtained comprehensive emission factor is more accurate, so that the emission amount of the obtained pollutant is more accurate.

Description

technical field [0001] The invention belongs to the technical field of building an air pollutant discharge inventory, and more specifically, relates to a method and device for calculating the emission of road traffic sources. Background technique [0002] Road motor vehicle emission sources are important air pollutant emission sources. The results of atmospheric PM2.5 source analysis work in 15 cities including Beijing, Tianjin, and Shanghai show that the contribution range of mobile sources to PM2.5 concentration in local emission sources ranges from 13.5% to 52.1%, which is the main reason for the generation of PM2.5 secondary particulate matter, excessive gaseous pollutants such as NOx, and the formation of heavily polluted weather. However, since road motor vehicles are typical mobile sources, the spatio-temporal characteristics and emission intensity of pollutant emissions change with the real-time traffic conditions, so it is difficult to perform quantitative calculati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/10G01N15/06G01N33/00G08G1/065
CPCG06F17/10G08G1/065G01N15/06G01N33/0004
Inventor 王堃王晨龙高超高佳佳童亚莉岳涛张晓曦
Owner BEIJING MUNICIPAL INST OF LABOUR PROTECTION
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