Graphical abstract

    HighlightsChildren ferrying led to over 10% increment in emission factors during rush hour.Average daily emissions experienced significant drops in vacation season.School/non-school difference affects accuracy of emission inventories.Corresponding policies could control traffic emissions at lower social costs.

    AbstractAfter having implemented numerous regulations, e.g., coercive policies on vehicle use and purchase, it is becoming increasingly difficult to find further potential to control vehicle emissions in Beijing, as the air quality is still poor. This research provides a different approach for policy-makers to reduce vehicle emissions by managing demand. We found that parents ferrying their children to and from school is an important but long-neglected contributor to traffic congestion and vehicle emissions. This phenomenon is very common in China because of the social culture. In this research, parallel tests during both the school season and the non-school season were adopted, and emissions in both seasons were calculated based on travel demand and emission models. The results revealed that emissions factors (in g/km) for criteria pollutants and CO2 increased by over 10% during rush hours during the school season due to traffic condition deterioration compared with non-school season. Daily HC, CO, NOx, PM and CO2 emissions from the passenger car fleet were 8.3%, 7.8%, 6.4%, 6.3% and 6.5% higher compared with those during the non-school season, respectively. These differences are greater than the total vehicular emission reduction by other control measures in 2014 in Beijing. For policy makers, providing safe and efficient ways to ferry children would be a useful and harmonious strategy for future vehicle emission control.


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    Titel :

    The significant impacts on traffic and emissions of ferrying children to school in Beijing


    Beteiligte:
    Yang, Xiaofan (Autor:in) / Liu, Huan (Autor:in) / He, Kebin (Autor:in)


    Erscheinungsdatum :

    2016-01-01


    Format / Umfang :

    11 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





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