A Coupling Analysis Method of Traffic Index and Motor Vehicle Pollutant Emission
A traffic index and motor vehicle technology, which is applied in the direction of traffic flow detection, etc., can solve the problems that the traffic index is related to the emission intensity of motor vehicle pollutants, and cannot reflect the traffic congestion of the road network.
Active Publication Date: 2017-08-25
北京交通发展研究院
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[0012] The purpose of the present invention is to overcome the problem that the existing research does not correlate the traffic index with the emission intensity of motor vehicle pollutants and cannot reflect the influence law of road network traffic congestion on pollutant discharge. The present invention provides a traffic index and motor vehicle pollution COUPLING ANALYSIS METHOD
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[0041] The technical solution will be described in detail below in conjunction with the accompanying drawings.
[0042] The invention is a coupling relationship method of traffic index, speed and emission. The method includes: a road working condition model, an emission rate generation model, an emission factor correction model based on multi-source data, a speed emission relation model, a traffic index speed relation model and an index emission relation model.
[0043] Based on multi-source traffic operation, road conditions, and emission data, this method researches and extracts a set of localized road operation conditions in Beijing, and introduces the American MOVES emission simulation method locally, and develops a Beijing motor vehicle emission rate generation model , and proposed an emission factor correction model based on multi-source data, which quantifies the quantitative relationship between traffic index, speed and motor vehicle emissions, and can support the eval...
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The invention discloses a traffic index and motor vehicle pollutant emission coupling analysis method, which comprises the steps of: step 101, calculating motor vehicle second-by-second specific power according to acquired second-by-second speed data when a vehicle is driving, wherein the motor vehicle second-by-second specific power refers to power output by an engine when moving a ton of mass; step 102, dividing motor vehicle specific power VSP into different interval units according to a certain interval, defining each interval unit as a Bin, and calculating an average emission ratio under each Bin; and clustering the average emission ratio under each Bin obtained through calculation based on a set integration granularity, and acquiring emission factors to obtain motor vehicle specific power distribution condition of a motor vehicle in different speed intervals. The traffic index and motor vehicle pollutant emission coupling analysis method provided by the invention is a motor vehicle pollutant emission analysis method associated with traffic index, achieves the correction of motor vehicle emission ratio of different resolution ratios from different sources, and offers support for making traffic environmental objectives as well as pollution and congestion treatment integrated traffic policy in urban traffic planning.
Description
technical field [0001] The invention relates to issues related to vehicle emissions, in particular to a coupling analysis method for traffic index and motor vehicle pollutant emissions. Background technique [0002] At present, the problem of air quality has become one of the most urgent problems that need to be dealt with in the process of urbanization and motorization in my country, especially in the Beijing-Tianjin-Hebei region. The challenges in the field of transportation are even more severe. Against the backdrop of continuous growth in the number of motor vehicles, motor vehicle exhaust emissions have become the largest source of pollution within the urban agglomeration. By the end of 2014, the number of motor vehicles in Beijing had exceeded 5.61 million, and motor vehicle pollution emissions accounted for 31.1% of Beijing's local sources. Under the dual pressure of traffic and environment, the urban transportation department and the environmental protection departm...
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IPC IPC(8): G08G1/01
Inventor 刘莹程颖何巍楠王书灵余柳王聘玺蔡静李晓祎张明辉谷岩
Owner 北京交通发展研究院