A macroscopic emission model is an important tool in a wide-area emission assessment, which is typically used to calculate and develop a national or regional emission inventory. China has had its own emission models. The use of modified versions of U.S. or European models, which has been the practice in the past, can lead to significant errors in emission estimates. This paper attempts to develop a macroscopic emission model for China on the basis of a combined use of real-world emission data collected in China and some supplementary modeling data from MOBILE. The paper first analyzes the fundamental features and calculation logic of existing models, the basis of the structure and modeling framework of the proposed macroscopic emission model for China. Then, a detailed description of the data collection, data analysis, and calculation processes of the key modules is presented. Subsequently, the paper implements the model by using Visual Basic computer language and the Microsoft Access database, which provide two data input approaches: default parameters and user-provided parameters. These approaches offer model flexibility and improve the model's regional applicability and output accuracy. Finally, a case study of the proposed model for estimating emissions for Beijing in 2008 is presented. Through use of the same data set, the outputs generated by the proposed model are compared with outputs from MOBILE6.2. The emission model developed in this research is shown to reflect the real-world emission level in China better than MOBILE6.2.


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    Title :

    Development and Application of Macroscopic Emission Model for China


    Additional title:

    Transportation Research Record


    Contributors:
    Yu, Lei (author) / Xu, Yaofang (author) / Song, Guohua (author) / Hao, Yanzhao (author) / Guo, Shuxia (author) / Shi, Qinyi (author)


    Publication date :

    2009-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




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