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    Abstract Electronic toll collection (ETC) has been designed and implemented to improve traffic efficiency and reduce traffic-related air pollution. However, the real-world impact of ETC on these factors is currently under-qualified. With this consideration, we attempted to reveal the effect of ETC on traffic efficiency and traffic pollution using portable emission measurement systems. Firstly, in contrast to the manual toll collection (MTC), ETC offer lower emissions and time savings, and there exist a quadratic relationship between emission rates and vehicle specific power. Secondly, vehicles in acceleration state emit more pollutants than other situations such as deceleration, steady cruising and idling in both ETC and MTC lanes. Thirdly, ETC lanes show 34.25% and 13.63% lower CO2 and NOx emissions, respectively, along with a 46.55% timesaving compared to MTC lanes. Finally, the study identifies engine load percent as the primary factor impacting emissions, accounting for 60–88% of the variance.


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    Title :

    Characterizing CO2 and NOx emission of vehicles crossing toll stations in highway


    Contributors:
    He, Hong-di (author) / Lu, Dan-ni (author) / Zhao, Hong-mei (author) / Peng, Zhong-ren (author)


    Publication date :

    2023-12-15




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English





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